CN116265473A - Organic electroluminescent material and device - Google Patents
Organic electroluminescent material and device Download PDFInfo
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- CN116265473A CN116265473A CN202211627729.2A CN202211627729A CN116265473A CN 116265473 A CN116265473 A CN 116265473A CN 202211627729 A CN202211627729 A CN 202211627729A CN 116265473 A CN116265473 A CN 116265473A
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- benzo
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- 239000000463 material Substances 0.000 title abstract description 111
- 150000001875 compounds Chemical class 0.000 claims abstract description 84
- 125000003118 aryl group Chemical group 0.000 claims abstract description 69
- 239000000126 substance Substances 0.000 claims abstract description 61
- -1 amino, silyl Chemical group 0.000 claims description 64
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 claims description 50
- TXCDCPKCNAJMEE-UHFFFAOYSA-N dibenzofuran Chemical compound C1=CC=C2C3=CC=CC=C3OC2=C1 TXCDCPKCNAJMEE-UHFFFAOYSA-N 0.000 claims description 50
- IYYZUPMFVPLQIF-UHFFFAOYSA-N dibenzothiophene Chemical compound C1=CC=C2C3=CC=CC=C3SC2=C1 IYYZUPMFVPLQIF-UHFFFAOYSA-N 0.000 claims description 45
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 44
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 42
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 40
- 125000000217 alkyl group Chemical group 0.000 claims description 40
- 229910052757 nitrogen Inorganic materials 0.000 claims description 39
- 125000001424 substituent group Chemical group 0.000 claims description 38
- 238000006467 substitution reaction Methods 0.000 claims description 38
- 229910052717 sulfur Inorganic materials 0.000 claims description 38
- 125000001072 heteroaryl group Chemical group 0.000 claims description 35
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 32
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 32
- 229910052799 carbon Inorganic materials 0.000 claims description 31
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims description 30
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 claims description 30
- 125000005605 benzo group Chemical group 0.000 claims description 30
- 229910052805 deuterium Inorganic materials 0.000 claims description 30
- 125000005647 linker group Chemical group 0.000 claims description 29
- 229910052739 hydrogen Inorganic materials 0.000 claims description 27
- 239000001257 hydrogen Substances 0.000 claims description 27
- 229910052760 oxygen Inorganic materials 0.000 claims description 27
- 125000003342 alkenyl group Chemical group 0.000 claims description 26
- 229910052796 boron Inorganic materials 0.000 claims description 26
- 125000000392 cycloalkenyl group Chemical group 0.000 claims description 25
- 239000012044 organic layer Substances 0.000 claims description 24
- 239000004305 biphenyl Substances 0.000 claims description 22
- 235000010290 biphenyl Nutrition 0.000 claims description 22
- 125000004404 heteroalkyl group Chemical group 0.000 claims description 22
- 125000000304 alkynyl group Chemical group 0.000 claims description 21
- IAVDUGKRMHOEPW-UHFFFAOYSA-N imidazo[1,2-a]imidazole Chemical compound C1=CN=C2N=C[CH]N21 IAVDUGKRMHOEPW-UHFFFAOYSA-N 0.000 claims description 21
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims description 20
- 125000003545 alkoxy group Chemical group 0.000 claims description 20
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 20
- 125000004104 aryloxy group Chemical group 0.000 claims description 20
- 229910052736 halogen Inorganic materials 0.000 claims description 20
- 150000002367 halogens Chemical class 0.000 claims description 20
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 20
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 claims description 19
- 125000000592 heterocycloalkyl group Chemical group 0.000 claims description 19
- 125000000446 sulfanediyl group Chemical group *S* 0.000 claims description 19
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 claims description 18
- 150000002527 isonitriles Chemical class 0.000 claims description 18
- 150000002825 nitriles Chemical class 0.000 claims description 18
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 17
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims description 17
- 150000002148 esters Chemical class 0.000 claims description 16
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 claims description 16
- 125000002252 acyl group Chemical group 0.000 claims description 15
- 150000002431 hydrogen Chemical class 0.000 claims description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 13
- WIUZHVZUGQDRHZ-UHFFFAOYSA-N [1]benzothiolo[3,2-b]pyridine Chemical compound C1=CN=C2C3=CC=CC=C3SC2=C1 WIUZHVZUGQDRHZ-UHFFFAOYSA-N 0.000 claims description 12
- BPMFPOGUJAAYHL-UHFFFAOYSA-N 9H-Pyrido[2,3-b]indole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=N1 BPMFPOGUJAAYHL-UHFFFAOYSA-N 0.000 claims description 10
- 125000004008 6 membered carbocyclic group Chemical group 0.000 claims description 7
- KTQYWNARBMKMCX-UHFFFAOYSA-N tetraphenylene Chemical group C1=CC=C2C3=CC=CC=C3C3=CC=CC=C3C3=CC=CC=C3C2=C1 KTQYWNARBMKMCX-UHFFFAOYSA-N 0.000 claims description 6
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 5
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 239000011737 fluorine Substances 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims 6
- 239000000203 mixture Substances 0.000 abstract description 20
- 238000009472 formulation Methods 0.000 abstract description 6
- 150000002894 organic compounds Chemical class 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 120
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- 239000002019 doping agent Substances 0.000 description 19
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- 230000004888 barrier function Effects 0.000 description 16
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 15
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 14
- 230000032258 transport Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 125000005842 heteroatom Chemical group 0.000 description 12
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 12
- 238000004770 highest occupied molecular orbital Methods 0.000 description 11
- 238000004768 lowest unoccupied molecular orbital Methods 0.000 description 11
- 150000003384 small molecules Chemical class 0.000 description 11
- 125000004432 carbon atom Chemical group C* 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- 150000001735 carboxylic acids Chemical class 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- XSCHRSMBECNVNS-UHFFFAOYSA-N quinoxaline Chemical compound N1=CC=NC2=CC=CC=C21 XSCHRSMBECNVNS-UHFFFAOYSA-N 0.000 description 9
- FCEHBMOGCRZNNI-UHFFFAOYSA-N 1-benzothiophene Chemical compound C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 description 8
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 8
- 150000004696 coordination complex Chemical class 0.000 description 8
- 239000002105 nanoparticle Substances 0.000 description 8
- 125000004429 atom Chemical group 0.000 description 7
- 230000003111 delayed effect Effects 0.000 description 7
- 238000000151 deposition Methods 0.000 description 7
- 125000000623 heterocyclic group Chemical group 0.000 description 7
- 230000005525 hole transport Effects 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 7
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 6
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 6
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 6
- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 6
- 125000006615 aromatic heterocyclic group Chemical group 0.000 description 6
- CUFNKYGDVFVPHO-UHFFFAOYSA-N azulene Chemical compound C1=CC=CC2=CC=CC2=C1 CUFNKYGDVFVPHO-UHFFFAOYSA-N 0.000 description 6
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 6
- VVVPGLRKXQSQSZ-UHFFFAOYSA-N indolo[3,2-c]carbazole Chemical compound C1=CC=CC2=NC3=C4C5=CC=CC=C5N=C4C=CC3=C21 VVVPGLRKXQSQSZ-UHFFFAOYSA-N 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 6
- 125000004433 nitrogen atom Chemical group N* 0.000 description 6
- 239000011368 organic material Substances 0.000 description 6
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 6
- 229910052711 selenium Inorganic materials 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 5
- SLGBZMMZGDRARJ-UHFFFAOYSA-N Triphenylene Natural products C1=CC=C2C3=CC=CC=C3C3=CC=CC=C3C2=C1 SLGBZMMZGDRARJ-UHFFFAOYSA-N 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 5
- 239000000412 dendrimer Substances 0.000 description 5
- 229920000736 dendritic polymer Polymers 0.000 description 5
- 229960005544 indolocarbazole Drugs 0.000 description 5
- FVZVCSNXTFCBQU-UHFFFAOYSA-N phosphanyl Chemical group [PH2] FVZVCSNXTFCBQU-UHFFFAOYSA-N 0.000 description 5
- 125000003367 polycyclic group Chemical group 0.000 description 5
- 125000006413 ring segment Chemical group 0.000 description 5
- 125000005580 triphenylene group Chemical group 0.000 description 5
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- DHFABSXGNHDNCO-UHFFFAOYSA-N dibenzoselenophene Chemical compound C1=CC=C2C3=CC=CC=C3[se]C2=C1 DHFABSXGNHDNCO-UHFFFAOYSA-N 0.000 description 4
- RMBPEFMHABBEKP-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2C3=C[CH]C=CC3=CC2=C1 RMBPEFMHABBEKP-UHFFFAOYSA-N 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 125000003800 germyl group Chemical group [H][Ge]([H])([H])[*] 0.000 description 4
- QDLAGTHXVHQKRE-UHFFFAOYSA-N lichenxanthone Natural products COC1=CC(O)=C2C(=O)C3=C(C)C=C(OC)C=C3OC2=C1 QDLAGTHXVHQKRE-UHFFFAOYSA-N 0.000 description 4
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N o-biphenylenemethane Natural products C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 description 4
- 230000005693 optoelectronics Effects 0.000 description 4
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- 229920006395 saturated elastomer Polymers 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
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- KTZQTRPPVKQPFO-UHFFFAOYSA-N 1,2-benzoxazole Chemical compound C1=CC=C2C=NOC2=C1 KTZQTRPPVKQPFO-UHFFFAOYSA-N 0.000 description 3
- BCMCBBGGLRIHSE-UHFFFAOYSA-N 1,3-benzoxazole Chemical compound C1=CC=C2OC=NC2=C1 BCMCBBGGLRIHSE-UHFFFAOYSA-N 0.000 description 3
- FLBAYUMRQUHISI-UHFFFAOYSA-N 1,8-naphthyridine Chemical compound N1=CC=CC2=CC=CN=C21 FLBAYUMRQUHISI-UHFFFAOYSA-N 0.000 description 3
- BNRDGHFESOHOBF-UHFFFAOYSA-N 1-benzoselenophene Chemical compound C1=CC=C2[se]C=CC2=C1 BNRDGHFESOHOBF-UHFFFAOYSA-N 0.000 description 3
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 3
- TZMSYXZUNZXBOL-UHFFFAOYSA-N 10H-phenoxazine Chemical compound C1=CC=C2NC3=CC=CC=C3OC2=C1 TZMSYXZUNZXBOL-UHFFFAOYSA-N 0.000 description 3
- BAXOFTOLAUCFNW-UHFFFAOYSA-N 1H-indazole Chemical compound C1=CC=C2C=NNC2=C1 BAXOFTOLAUCFNW-UHFFFAOYSA-N 0.000 description 3
- VEPOHXYIFQMVHW-XOZOLZJESA-N 2,3-dihydroxybutanedioic acid (2S,3S)-3,4-dimethyl-2-phenylmorpholine Chemical compound OC(C(O)C(O)=O)C(O)=O.C[C@H]1[C@@H](OCCN1C)c1ccccc1 VEPOHXYIFQMVHW-XOZOLZJESA-N 0.000 description 3
- OLGGLCIDAMICTA-UHFFFAOYSA-N 2-pyridin-2-yl-1h-indole Chemical compound N1C2=CC=CC=C2C=C1C1=CC=CC=N1 OLGGLCIDAMICTA-UHFFFAOYSA-N 0.000 description 3
- QMEQBOSUJUOXMX-UHFFFAOYSA-N 2h-oxadiazine Chemical compound N1OC=CC=N1 QMEQBOSUJUOXMX-UHFFFAOYSA-N 0.000 description 3
- BCHZICNRHXRCHY-UHFFFAOYSA-N 2h-oxazine Chemical compound N1OC=CC=C1 BCHZICNRHXRCHY-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
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- RFRXIWQYSOIBDI-UHFFFAOYSA-N benzarone Chemical compound CCC=1OC2=CC=CC=C2C=1C(=O)C1=CC=C(O)C=C1 RFRXIWQYSOIBDI-UHFFFAOYSA-N 0.000 description 3
- 150000001721 carbon Chemical group 0.000 description 3
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- 238000005286 illumination Methods 0.000 description 3
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- 125000002950 monocyclic group Chemical group 0.000 description 3
- WCPAKWJPBJAGKN-UHFFFAOYSA-N oxadiazole Chemical compound C1=CON=N1 WCPAKWJPBJAGKN-UHFFFAOYSA-N 0.000 description 3
- AZHVQJLDOFKHPZ-UHFFFAOYSA-N oxathiazine Chemical compound O1SN=CC=C1 AZHVQJLDOFKHPZ-UHFFFAOYSA-N 0.000 description 3
- 125000004430 oxygen atom Chemical group O* 0.000 description 3
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 3
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- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical compound C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 3
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- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 3
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- 150000003852 triazoles Chemical class 0.000 description 3
- HMLURENDJQQGCM-UHFFFAOYSA-N 1-benzothiophene;pyridine Chemical compound C1=CC=NC=C1.C1=CC=C2SC=CC2=C1 HMLURENDJQQGCM-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- QZLAKPGRUFFNRD-UHFFFAOYSA-N [1]benzoselenolo[3,2-b]pyridine Chemical compound C1=CN=C2C3=CC=CC=C3[se]C2=C1 QZLAKPGRUFFNRD-UHFFFAOYSA-N 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
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- 150000004982 aromatic amines Chemical class 0.000 description 2
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 description 2
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- 230000003190 augmentative effect Effects 0.000 description 2
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- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
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- QMLPJDVGNRHGJQ-UHFFFAOYSA-N ditert-butyl-(1-methyl-2,2-diphenylcyclopropyl)phosphane Chemical compound CC(C)(C)P(C(C)(C)C)C1(C)CC1(C=1C=CC=CC=1)C1=CC=CC=C1 QMLPJDVGNRHGJQ-UHFFFAOYSA-N 0.000 description 2
- 238000000295 emission spectrum Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
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- HZVOZRGWRWCICA-UHFFFAOYSA-N methanediyl Chemical compound [CH2] HZVOZRGWRWCICA-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
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Abstract
The present application relates to organic electroluminescent materials and devices. An organic compound is provided comprising a central eight membered ring formed by linking four 6 membered aromatic rings. The compound further comprises first and second chemical structures selected from formulas II-VI. Formulations comprising these compounds are also provided. Further provided are organic light emitting device OLEDs and related consumer products utilizing these compounds.
Description
Cross reference to related applications
The present application claims priority from U.S. patent application No. 63/265,495 filed on day 2021, month 12, and 16 in accordance with 35u.s.c. ≡119 (e), the entire contents of which are incorporated herein by reference. The present application further claims priority from U.S. patent application No. 63/365,788 filed on 3/6/2022, in accordance with 35u.s.c. ≡119 (e), the entire contents of which are incorporated herein by reference. The present application further claims priority from U.S. provisional application No. 63/358,655, filed on 7/6/2022, in accordance with 35u.s.c. ≡119 (e), the entire contents of which are incorporated herein by reference. The present application further claims priority from U.S. 4, 15, 2022, U.S. provisional application No. 63/363,047, incorporated herein by reference in its entirety, in accordance with 35u.s.c. ≡119 (e). The present application further claims priority from U.S. provisional application No. 63/366,725, filed on day 21, 6, 2022, in accordance with 35u.s.c. ≡119 (e), the entire contents of which are incorporated herein by reference. The present application further claims priority from U.S. 4, 15, 2022, U.S. provisional application No. 63/363,068, filed on even date 35u.s.c. ≡119 (e), the entire contents of which are incorporated herein by reference. The present application further claims priority from U.S. patent application No. 63/367,227 filed on day 29, 6, 2022, in accordance with 35u.s.c. ≡119 (e), the entire contents of which are incorporated herein by reference. The present application further claims priority from U.S. patent application No. 63/368,521, filed on 7.15, 2022, in accordance with 35u.s.c. ≡119 (e), the entire contents of which are incorporated herein by reference. The present application further claims priority from U.S. patent application No. 63/373,562 filed on 8/26 of 2022, 35u.s.c. ≡119 (e), the entire contents of which are incorporated herein by reference. The present application further claims priority from U.S. provisional application No. 63/396,852, filed on 8/10 of 2022, 35u.s.c. ≡119 (e), the entire contents of which are incorporated herein by reference. The present application further claims priority from U.S. provisional application No. 63/374,383 filed on day 2, 9, 2022, in accordance with 35u.s.c. ≡119 (e), the entire contents of which are incorporated herein by reference.
Technical Field
The present disclosure relates generally to organometallic compounds and formulations and various uses thereof, including as hosts or emitters in devices such as organic light emitting diodes and related electronic devices.
Background
Optoelectronic devices utilizing organic materials are becoming increasingly popular for a variety of reasons. Many of the materials used to fabricate the devices are relatively inexpensive, so organic photovoltaic devices have the potential for cost advantages over inorganic devices. In addition, the inherent properties of organic materials (e.g., their flexibility) may make them more suitable for specific applications, such as fabrication on flexible substrates. Examples of organic optoelectronic devices include organic light emitting diodes/devices (OLEDs), organic phototransistors, organic photovoltaic cells, and organic photodetectors. For OLEDs, organic materials can have performance advantages over conventional materials.
OLEDs utilize organic thin films that emit light when a voltage is applied across the device. OLEDs are becoming an increasingly interesting technology for use in applications such as flat panel displays, lighting and backlighting.
One application of phosphorescent emissive molecules is in full color displays. Industry standards for such displays require pixels adapted to emit a particular color (referred to as a "saturated" color). In particular, these standards require saturated red, green and blue pixels. Alternatively, the OLED may be designed to emit white light. In conventional liquid crystal displays, the emission from a white backlight is filtered using an absorbing filter to produce red, green and blue emissions. The same technique can also be used for OLEDs. The white OLED may be a single emissive layer (EML) device or a stacked structure. The colors may be measured using CIE coordinates well known in the art.
Disclosure of Invention
In one aspect, the present disclosure provides a compound of formula I:
wherein X is 1 -X 16 Each independently is C or N;
wherein R is A 、R B 、R C And R is D Each independently represents a single substitution to a maximum amount of substitution, or no substitution;
wherein R is A 、R B 、R C And R is D Each independently selected from the group consisting of: hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, boron, aralkyl, alkoxy, aryloxy, amino, silyl, germanyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, seleno, and combinations thereof;
wherein R is A 、R B 、R C And R is D Comprises a first chemical structure selected from formulas II-VI;
wherein R is A 、R B 、R C And R is D Comprises a second chemical structure selected from formulas II-VI;
wherein the first chemical structure and the second chemical structure may be formed from the same R A 、R B 、R C Or R is D Comprises the following steps of; wherein formulae II-VI are as follows:
---L 1 -SiR 1 R 2 R 3 a formula II;
wherein X is 17 -X 49 Each independently is C or N;
wherein X is 33 -X 38 At least one of which is N;
wherein Y is 1 、Y 2 And Y 3 Each independently selected from O, S, se, NR, BR, BRR ', PR, CR, c= O, C = S, C =nr, c=crr ', CRR ', SO 2 SiRR ', geRR' and P (O) R;
wherein Y is 2 And Y 3 Are identical;
wherein Z is selected from the group consisting of B, al, ga, PO and N;
wherein R, R', R 1 、R 2 、R 3 、R E 、R F 、R G 、R H 、R I 、R J 、R K And R is L Each independently represents a single substitution to a maximum amount of substitution, or no substitution;
wherein R, R', R 1 、R 2 、R 3 、R E 、R F 、R G 、R H 、R I 、R J 、R K And R is L Each independently selected from the group consisting of: hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, boron, aralkyl, alkoxy, aryloxy, amino, silyl, germanyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, seleno, and combinations thereof;
wherein each L 1 、L 2 、L 3 、L 4 And L 5 Independently a direct bond or an organic linking group;
provided that two R A 、R B 、R C And R is D Substituents do not join to form a ring;
provided that R A 、R B 、R C Or R is D Does not contain tetraphenylene or aza-tetraphenylene;
provided that if the first chemical structure and the second chemical structure are both of formula IV, or if the first chemical structure is of formula IV and the second chemical structure is of formula V, at least one R A 、R B 、R C Or R is D Comprising a chemical structure selected from formulas II, III and VI;
wherein any two substituents may join or fuse to form a ring.
In another aspect, the present disclosure provides a formulation of a compound as described herein.
In yet another aspect, the present disclosure provides an OLED having an organic layer comprising a compound as described herein.
In yet another aspect, the present disclosure provides a consumer product comprising an OLED having an organic layer comprising a compound as described herein.
Drawings
Fig. 1 shows an organic light emitting device.
Fig. 2 shows an inverted organic light emitting device without a separate electron transport layer.
Detailed Description
A. Terminology
Unless otherwise specified, the following terms used herein are defined as follows:
as used herein, the term "organic" includes polymeric materials and small molecule organic materials that can be used to fabricate organic optoelectronic devices. "Small molecule" refers to any organic material that is not a polymer, and may be substantial in nature. In some cases, the small molecule may include a repeating unit. For example, the use of long chain alkyl groups as substituents does not remove a molecule from the "small molecule" class. Small molecules may also be incorporated into the polymer, for example as pendant groups on the polymer backbone or as part of the backbone. Small molecules can also act as the core of a dendrimer, which consists of a series of chemical shells built on the core. The core moiety of the dendrimer may be a fluorescent or phosphorescent small molecule emitter. Dendrimers may be "small molecules" and all dendrimers currently used in the OLED field are considered small molecules.
As used herein, "top" means furthest from the substrate, and "bottom" means closest to the substrate. Where a first layer is described as being "disposed" over "a second layer, the first layer is disposed farther from the substrate. Unless a first layer is "in contact with" a second layer, other layers may be present between the first and second layers. For example, a cathode may be described as "disposed over" an anode even though various organic layers are present between the cathode and the anode.
As used herein, "solution processable" means capable of being dissolved, dispersed, or transported in and/or deposited from a liquid medium in the form of a solution or suspension.
A ligand may be referred to as "photosensitive" when it is believed that the ligand contributes directly to the photosensitive properties of the emissive material. When the ligand is considered not to contribute to the photosensitive properties of the emissive material, the ligand may be referred to as "ancillary", but the ancillary ligand may alter the properties of the photosensitive ligand.
As used herein, and as will be generally understood by those of skill in the art, if the first energy level is closer to the vacuum energy level, then the first "highest occupied molecular orbital" (Highest Occupied Molecular Orbital, HOMO) or "lowest unoccupied molecular orbital" (Lowest Unoccupied Molecular Orbital, LUMO) energy level is "greater than" or "higher than" the second HOMO or LUMO energy level. Since Ionization Potential (IP) is measured as a negative energy relative to the vacuum level, a higher HOMO level corresponds to an IP with a smaller absolute value (less negative). Similarly, a higher LUMO energy level corresponds to an Electron Affinity (EA) with a smaller absolute value (less negative EA). On a conventional energy level diagram with vacuum energy level on top, the LUMO energy level of a material is higher than the HOMO energy level of the same material. The "higher" HOMO or LUMO energy level appears closer to the top of this figure than the "lower" HOMO or LUMO energy level.
As used herein, and as will be generally understood by those of skill in the art, a first work function is "greater than" or "higher than" a second work function if the first work function has a higher absolute value. Since work function is typically measured as a negative number relative to the vacuum level, this means that the "higher" work function is more negative (more negative). On a conventional energy level diagram with the vacuum energy level on top, a "higher" work function is illustrated as being farther from the vacuum energy level in a downward direction. Thus, the definition of HOMO and LUMO energy levels follows a different rule than work function.
The terms "halo", "halogen" and "halo" are used interchangeably and refer to fluoro, chloro, bromo and iodo.
The term "acyl" refers to a substituted carbonyl (C (O) -R s )。
The term "ester" refers to a substituted oxycarbonyl (-O-C (O) -R) s or-C (O) -O-R s ) A group.
The term "ether" means-OR s A group.
The terms "thio" or "thioether" are used interchangeably and refer to-SR s A group.
The term "seleno" refers to-SeR s A group.
The term "sulfinyl" refers to-S (O) -R s A group.
The term "sulfonyl" refers to-SO 2 -R s A group.
The term "phosphino" refers to-P (R s ) 3 A group wherein each R s May be the same or different.
The term "silane group" means-Si (R s ) 3 A group wherein each R s May be the same or different.
The term "germyl" refers to-Ge (R s ) 3 A group wherein each R s May be the same or different.
The term "boron group" means-B (R s ) 2 A group or Lewis addition product-B (R) s ) 3 A group, wherein R is s May be the same or different.
In each of the above, R s May be hydrogen or a substituent selected from the group consisting of: deuterium (deuterium),Halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, aralkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, and combinations thereof. Preferred R s Selected from the group consisting of: alkyl, cycloalkyl, aryl, heteroaryl, and combinations thereof.
The term "alkyl" refers to and includes straight and branched chain alkyl groups. Preferred alkyl groups are those containing one to fifteen carbon atoms and include methyl, ethyl, propyl, 1-methylethyl, butyl, 1-methylpropyl, 2-methylpropyl, pentyl, 1-methylbutyl, 2-methylbutyl, 3-methylbutyl, 1-dimethylpropyl, 1, 2-dimethylpropyl, 2-dimethylpropyl, and the like. In addition, alkyl groups may be optionally substituted.
The term "cycloalkyl" refers to and includes monocyclic, polycyclic, and spiroalkyl groups. Preferred cycloalkyl groups are those containing 3 to 12 ring carbon atoms and include cyclopropyl, cyclopentyl, cyclohexyl, bicyclo [3.1.1] heptyl, spiro [4.5] decyl, spiro [5.5] undecyl, adamantyl, and the like. In addition, cycloalkyl groups may be optionally substituted.
The term "heteroalkyl" or "heterocycloalkyl" refers to an alkyl or cycloalkyl group, respectively, having at least one carbon atom replaced with a heteroatom. Optionally, the at least one heteroatom is selected from O, S, N, P, B, si and Se, preferably O, S or N. In addition, heteroalkyl or heterocycloalkyl groups may be optionally substituted.
The term "alkenyl" refers to and includes both straight and branched alkenyl groups. Alkenyl is essentially an alkyl group comprising at least one carbon-carbon double bond in the alkyl chain. Cycloalkenyl is essentially cycloalkyl including at least one carbon-carbon double bond in the cycloalkyl ring. The term "heteroalkenyl" as used herein refers to an alkenyl group having at least one carbon atom replaced with a heteroatom. Optionally, the at least one heteroatom is selected from O, S, N, P, B, si and Se, preferably O, S or N. Preferred alkenyl, cycloalkenyl or heteroalkenyl groups are those containing from two to fifteen carbon atoms. In addition, alkenyl, cycloalkenyl, or heteroalkenyl groups may be optionally substituted.
The term "alkynyl" refers to and includes both straight and branched chain alkynyl groups. Alkynyl is generally an alkyl group that includes at least one carbon-carbon triple bond in the alkyl chain. Preferred alkynyl groups are those containing from two to fifteen carbon atoms. In addition, alkynyl groups may be optionally substituted.
The term "aralkyl" or "arylalkyl" is used interchangeably and refers to an alkyl group substituted with an aryl group. In addition, aralkyl groups are optionally substituted.
The term "heterocyclyl" refers to and includes aromatic and non-aromatic cyclic groups containing at least one heteroatom. Optionally, the at least one heteroatom is selected from O, S, N, P, B, si and Se, preferably O, S or N. Aromatic heterocyclic groups may be used interchangeably with heteroaryl. Preferred non-aromatic heterocyclic groups are heterocyclic groups containing 3 to 7 ring atoms including at least one heteroatom and include cyclic amines such as morpholinyl, piperidinyl, pyrrolidinyl, and the like, and cyclic ethers/sulfides such as tetrahydrofuran, tetrahydropyran, tetrahydrothiophene, and the like. In addition, the heterocyclic group may be optionally substituted.
The term "aryl" refers to and includes monocyclic aromatic hydrocarbon groups and polycyclic aromatic ring systems. The polycyclic ring may have two or more rings in common in which two carbons are two adjoining rings (the rings being "fused"), wherein at least one of the rings is an aromatic hydrocarbon group, e.g., the other rings may be cycloalkyl, cycloalkenyl, aryl, heterocyclic, and/or heteroaryl. Preferred aryl groups are those containing from six to thirty carbon atoms, preferably from six to twenty carbon atoms, more preferably from six to twelve carbon atoms. Particularly preferred are aryl groups having six carbons, ten carbons or twelve carbons. Suitable aryl groups include phenyl, biphenyl, triphenylene, tetraphenylene, naphthalene, anthracene, phenalene, phenanthrene, fluorene, pyrene, Perylene and azulene, preferably phenyl, biphenyl, triphenylene, fluorene and naphthalene. In addition, aryl groups may be optionally substituted.
The term "heteroaryl" refers to and includes monocyclic aromatic groups and polycyclic aromatic ring systems that include at least one heteroatom. Heteroatoms include, but are not limited to O, S, N, P, B, si and Se. In many cases O, S or N are preferred heteroatoms. The monocyclic heteroaromatic system is preferably a monocyclic ring having 5 or 6 ring atoms, and the ring may have one to six heteroatoms. The heteropolycyclic ring system may have two or more rings in which two atoms are common to two adjoining rings (the rings being "fused"), wherein at least one of the rings is heteroaryl, e.g., the other rings may be cycloalkyl, cycloalkenyl, aryl, heterocyclic, and/or heteroaryl. The heteropolycyclic aromatic ring system may have one to six heteroatoms in each ring of the polycyclic aromatic ring system. Preferred heteroaryl groups are those containing from three to thirty carbon atoms, preferably from three to twenty carbon atoms, more preferably from three to twelve carbon atoms. Suitable heteroaryl groups include dibenzothiophene, dibenzofuran, dibenzoselenophene, furan, thiophene, benzofuran, benzothiophene, benzoselenophene, carbazole, indolocarbazole, pyridylindole, pyrrolodipyridine, pyrazole, imidazole, triazole, oxazole, thiazole, oxadiazole, oxatriazole, dioxazole, thiadiazole, pyridine, pyridazine, pyrimidine, pyrazine, triazine, oxazine, oxathiazine, oxadiazine, indole, benzimidazole, indazole, indolizine, benzoxazole, benzisoxazole, benzothiazole, quinoline, isoquinoline, cinnoline, quinazoline, quinoxaline, naphthyridine, phthalazine, pteridine, xanthene (xanthene), acridine, phenazine, phenothiazine, phenoxazine, benzofurandipyridine, benzothiophene, thienodipyridine, benzoselenophene dipyridine, dibenzofuran, dibenzoselenium, carbazole, indolocarbazole, benzimidazole, triazine, 1, 2-azaboron-1, 4-azaboron-nitrogen, boron-nitrogen-like compounds, and the like. In addition, heteroaryl groups may be optionally substituted.
Of the aryl and heteroaryl groups listed above, triphenylene, naphthalene, anthracene, dibenzothiophene, dibenzofuran, dibenzoselenophene, carbazole, indolocarbazole, imidazole, pyridine, pyrazine, pyrimidine, triazine, and benzimidazole, and their respective corresponding aza analogues, are of particular interest.
The terms alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aralkyl, heterocyclyl, aryl, and heteroaryl as used herein are independently unsubstituted or independently substituted with one or more common substituents.
In many cases, the typical substituents are selected from the group consisting of: deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, aralkyl, alkoxy, aryloxy, amino, silyl, germyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, seleno, sulfinyl, sulfonyl, phosphino, boron, and combinations thereof.
In some cases, preferred general substituents are selected from the group consisting of: deuterium, fluorine, alkyl, cycloalkyl, heteroalkyl, alkoxy, aryloxy, amino, silyl, germyl, boron, alkenyl, cycloalkenyl, heteroalkenyl, aryl, heteroaryl, nitrile, isonitrile, sulfonyl, and combinations thereof.
In some cases, more preferred general substituents are selected from the group consisting of: deuterium, fluorine, alkyl, cycloalkyl, alkoxy, aryloxy, amino, silyl, boron, aryl, heteroaryl, thio, and combinations thereof.
In other cases, the most preferred general substituents are selected from the group consisting of: deuterium, fluorine, alkyl, cycloalkyl, aryl, heteroaryl, and combinations thereof.
The terms "substituted" and "substituted" refer to substituents other than H bonded to the relevant position, such as carbon or nitrogen. For example, when R 1 When single substitution is represented, then one R 1 It must not be H (i.e., substitution). Similarly, when R 1 When two are substituted, two R 1 It must not be H. Similarly, when R 1 R represents zero or no substitution 1 For example, it may be hydrogen of available valence number of a ring atom (such as carbon atom of benzene and nitrogen atom of pyrrole), or it may represent nothing only for a ring atom having a completely saturated valence number (such as nitrogen atom of pyridine). The maximum number of substitutions possible in the ring structure will depend onTotal number of available valences in ring atoms.
As used herein, "combination thereof" means that one or more members of the applicable list are combined to form a known or chemically stable arrangement that one of ordinary skill in the art can contemplate from the applicable list. For example, alkyl and deuterium can be combined to form a partially or fully deuterated alkyl group; halogen and alkyl may combine to form a haloalkyl substituent; and halogen, alkyl and aryl may be combined to form a haloaralkyl. In one example, the term substitution includes a combination of two to four of the listed groups. In another example, the term substitution includes a combination of two to three groups. In yet another example, the term substitution includes a combination of two groups. Preferred combinations of substituents are combinations containing up to fifty atoms other than hydrogen or deuterium, or combinations comprising up to forty atoms other than hydrogen or deuterium, or combinations comprising up to thirty atoms other than hydrogen or deuterium. In many cases, a preferred combination of substituents will include up to twenty atoms that are not hydrogen or deuterium.
The term "aza" in the fragments described herein, i.e., aza-dibenzofuran, aza-dibenzothiophene, etc., means that one or more of the C-H groups in the corresponding aromatic ring may be replaced with a nitrogen atom, for example and without limitation, aza-triphenylene encompasses dibenzo [ f, H ] quinoxaline and dibenzo [ f, H ] quinoline. Other nitrogen analogs of the aza-derivatives described above can be readily envisioned by those skilled in the art, and all such analogs are intended to be encompassed by the terms as set forth herein.
As used herein, "deuterium" refers to an isotope of hydrogen. Deuterated compounds can be readily prepared using methods known in the art. For example, U.S. patent No. 8,557,400, patent publication No. WO 2006/095951, and U.S. patent application publication No. US 2011/0037057 (which are incorporated herein by reference in their entirety) describe the preparation of deuterium-substituted organometallic complexes. Further reference is made to Yan Ming (Ming Yan) et al, tetrahedron 2015,71,1425-30 and Azrote (Atzrodt) et al, germany application chemistry (Angew. Chem. Int. Ed.) (reviewed) 2007,46,7744-65, which is incorporated by reference in its entirety, describes the deuteration of methylene hydrogen in benzylamine and the efficient pathway of replacement of aromatic ring hydrogen with deuterium, respectively.
It will be appreciated that when a fragment of a molecule is described as a substituent or otherwise attached to another moiety, its name may be written as if it were a fragment (e.g., phenyl, phenylene, naphthyl, dibenzofuranyl) or as if it were an entire molecule (e.g., benzene, naphthalene, dibenzofuran). As used herein, these different ways of naming substituents or linking fragments are considered equivalent.
In some cases, a pair of adjacent substituents may optionally be joined or fused into a ring. Preferred rings are five-, six-, or seven-membered carbocycles or heterocycles, including both cases where a portion of the ring formed by the pair of substituents is saturated and a portion of the ring formed by the pair of substituents is unsaturated. As used herein, "adjacent" means that the two substituents involved can be next to each other on the same ring, or on two adjacent rings having two nearest available substitutable positions (e.g., the 2, 2' positions in biphenyl or the 1, 8 positions in naphthalene) so long as they can form a stable fused ring system.
B. Compounds of the present disclosure
In one aspect, the present disclosure provides a compound of formula I:
wherein X is 1 -X 16 Each independently is C or N;
Wherein R is A 、R B 、R C And R is D Each independently represents a single substitution to a maximum amount of substitution, or no substitution;
wherein R is A 、R B 、R C And R is D Each independently selected from the group consisting of: hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, boron, aralkyl, alkoxy, aryloxy, amino, silyl, germanyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynylAryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, seleno, and combinations thereof;
wherein R is A 、R B 、R C And R is D Comprises a first chemical structure selected from formulas II-VI;
wherein R is A 、R B 、R C And R is D Comprises a second chemical structure selected from formulas II-VI;
wherein the first chemical structure and the second chemical structure may be formed from the same R A 、R B 、R C Or R is D Comprises the following steps of;
wherein formulae II-VI are as follows:
---L 1 -SiR 1 R 2 R 3 a formula II;
wherein X is 17 -X 49 Each independently is C or N;
wherein X is 33 -X 38 At least one of which is N;
wherein Y is 1 、Y 2 And Y 3 Each independently selected from O, S, se, NR, BR, BRR ', PR, CR, c= O, C = S, C =nr, c=crr ', CRR ', SO 2 SiRR ', geRR' and P (O) R;
wherein Y is 2 And Y 3 Are identical;
wherein Z is selected from the group consisting of B, al, ga, PO and N;
Wherein R, R', R 1 、R 2 、R 3 、R E 、R F 、R G 、R H 、R I 、R J 、R K And R is L Each independently represents a single substitutionTo a maximum amount of substitution, or no substitution;
wherein R, R', R 1 、R 2 、R 3 、R E 、R F 、R G 、R H 、R I 、R J 、R K And R is L Each independently selected from the group consisting of: hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, boron, aralkyl, alkoxy, aryloxy, amino, silyl, germanyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, seleno, and combinations thereof;
wherein each L 1 、L 2 、L 3 、L 4 And L 5 Independently a direct bond or an organic linking group;
provided that two R A 、R B 、R C And R is D Substituents do not join to form a ring;
provided that R A 、R B 、R C Or R is D Does not contain tetraphenylene or aza-tetraphenylene;
provided that if the first chemical structure and the second chemical structure are both of formula IV, or if the first chemical structure is of formula IV and the second chemical structure is of formula V, at least one R A 、R B 、R C Or R is D Comprising a chemical structure selected from formulas II, III and VI;
wherein any two substituents may join or fuse to form a ring.
In some embodiments, each R, R', R 1 、R 2 、R 3 、R A 、R B 、R C 、R D 、R E 、R F 、R G 、R H 、R I 、R J 、R K And R is L Independently hydrogen or a substituent selected from the group consisting of: deuterium, fluorine, alkyl, cycloalkyl, heteroalkyl, alkoxy, aryloxy, amino, silyl, germyl, boron, alkenyl, cycloalkenyl, heteroalkenyl, aryl, heteroaryl, Nitrile, isonitrile, thio, and combinations thereof.
In some embodiments, X 1 -X 16 At least 12 of which are C
In some embodiments, X 1 -X 16 At least 15 of which are C.
In some embodiments, X 1 -X 16 All are C.
In some embodiments, X is contained 1 -X 16 The maximum number of N in each ring of (a) is two.
In some embodiments, X is contained 1 -X 16 The maximum number of N in each ring of (a) is one.
In some embodiments, the composition contains X 1 -X 16 No two N may be connected adjacent to each other within the ring.
In some embodiments, at least one of the first and second chemical structures is selected from formula II.
In some embodiments, R 1 -R 3 At least two of which are identical.
In some embodiments, R 1 -R 3 Comprises a 6 membered carbocyclic aromatic ring.
In some embodiments, L 1 -L 5 Is a direct bond.
In some embodiments, L 1 -L 5 Is a direct bond.
In some embodiments, each L 1 -L 5 Independently is a linking group selected from the group consisting of: o, S, CRR ', siRR ', geRR ', phenyl, pyridine, pyrazine, pyrimidine, triazine, biphenyl, carbazole, bimim, dibenzofuran, dibenzothiophene, azacarbazole, azabenzo [ d ]]Benzo [4,5 ] ]Imidazo [1,2-a]Imidazole, azadibenzofuran, azadibenzothiophene. In some embodiments, each L 1 -L 5 Independently is a linking group selected from the group consisting of SiRR', phenyl, biphenyl, carbazole.
In some embodiments, L 1 -L 5 At least one packet of (a)Containing 6-membered carbocyclic aromatic rings.
In some embodiments, L 1 Is a direct bond.
In some embodiments, L 1 Comprising at least one 6-membered carbocyclic aromatic ring, preferably at least one phenyl group.
In some embodiments, L 1 Comprising at least two 6 membered carbocyclic aromatic rings, preferably at least two phenyl groups.
In some embodiments, L 1 Comprising at least three 6 membered carbocyclic aromatic rings, preferably at least three phenyl groups.
In some embodiments, L 1 Is a linking group and comprises at least one 6 membered aromatic ring.
In some embodiments, L 1 Is a linking group and is selected from the group consisting of: o, S, CRR ', siRR ', geRR ', phenyl, pyridine, pyrazine, pyrimidine, triazine, biphenyl, carbazole, benzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole (bimlim), dibenzofuran, dibenzothiophene, azacarbazole, and azabenzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole, azadibenzofuran and azadibenzothiophene.
In some embodiments, L 1 Is a linking group and is selected from the group consisting of SiRR', phenyl, biphenyl, and carbazole.
In some embodiments, at least one of the first and second chemical structures is selected from formula III.
In some embodiments, X 17 -X 24 At least seven of which are C.
In some embodiments, X 17 -X 24 All are C.
In some embodiments, Y 1 Is NR.
In some embodiments, Y 1 Is O or S.
In some embodiments, L 2 Is a direct bond.
In some embodiments, L 2 Comprising at least one 6-membered aromatic ring, preferably at least one phenyl group.
In some embodiments, L 2 Comprising at least twoA 6 membered aromatic ring, preferably at least two phenyl groups.
In some embodiments, L 2 Comprising at least three 6-membered aromatic rings, preferably at least three phenyl groups.
In some embodiments, L 2 Is a linking group and comprises at least one 6 membered aromatic ring.
In some embodiments, L 2 Is a linking group and is selected from the group consisting of: o, S, CRR ', siRR ', geRR ', phenyl, pyridine, pyrazine, pyrimidine, triazine, biphenyl, carbazole, benzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole (bimlim), dibenzofuran, dibenzothiophene, azacarbazole, and azabenzo [ d ] ]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole, azadibenzofuran and azadibenzothiophene.
In some embodiments, L 2 Is a linking group and is selected from the group consisting of SiRR', phenyl, biphenyl, and carbazole.
In some embodiments, at least one of the first and second chemical structures is selected from formula IV.
In some embodiments, X 25 -X 32 At least seven of which are C.
In some embodiments, X 25 -X 32 All are C.
In some embodiments, L 3 Is a direct bond.
In some embodiments, L 3 Comprising at least one 6-membered aromatic ring, preferably at least one phenyl group.
In some embodiments, L 3 Comprising at least two 6-membered aromatic rings, preferably at least two phenyl groups.
In some embodiments, L 3 Comprising at least three 6-membered aromatic rings, preferably at least three phenyl groups.
In some embodiments, L 3 Is a linking group and comprises at least one 6 membered aromatic ring.
In some embodiments, L 3 Is a linking group and is selected from the group consisting of: o, S, CRR ', siRR ', geRR ', phenyl, pyridine, pyrazine, pyrimidine, triazine, biphenyl, carbazoleBenzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole (bimlim), dibenzofuran, dibenzothiophene, azacarbazole, and azabenzo [ d ] ]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole, azadibenzofuran and azadibenzothiophene.
In some embodiments, L 3 Is a linking group and is selected from the group consisting of SiRR', phenyl, biphenyl, and carbazole.
In some embodiments, at least one of the first and second chemical structures is selected from formula V.
In some embodiments, X 33 -X 38 Exactly one of (2) is N.
In some embodiments, L 4 Is a direct bond.
In some embodiments, L 4 Comprising at least one 6-membered aromatic ring, preferably at least one phenyl group.
In some embodiments, L 4 Comprising at least two 6-membered aromatic rings, preferably at least two phenyl groups.
In some embodiments, L 4 Comprising at least three 6-membered aromatic rings, preferably at least three phenyl groups.
In some embodiments, L 4 Is a linking group and comprises at least one 6 membered aromatic ring.
In some embodiments, L 4 Is a linking group and is selected from the group consisting of: o, S, CRR ', siRR ', geRR ', phenyl, pyridine, pyrazine, pyrimidine, triazine, biphenyl, carbazole, benzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole (bimlim), dibenzofuran, dibenzothiophene, azacarbazole, and azabenzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a ]Imidazole, azadibenzofuran and azadibenzothiophene.
In some embodiments, L 4 Is a linking group and is selected from the group consisting of SiRR', phenyl, biphenyl, and carbazole.
In some embodiments, at least one of the first and second chemical structures is selected from formula VI.
In some embodiments, X 39 -X 49 Is C.
In some embodiments, X 39 -X 49 All are C.
In some embodiments, L 5 Is a direct bond.
In some embodiments, L 5 Comprising at least one 6-membered aromatic ring, preferably at least one phenyl group.
In some embodiments, L 5 Comprising at least two 6-membered aromatic rings, preferably at least two phenyl groups.
In some embodiments, L 5 Comprising at least three 6-membered aromatic rings, preferably at least three phenyl groups.
In some embodiments, L 5 Is a linking group and comprises at least one 6 membered aromatic ring.
In some embodiments, L 5 Is a linking group and is selected from the group consisting of: o, S, CRR ', siRR ', geRR ', phenyl, pyridine, pyrazine, pyrimidine, triazine, biphenyl, carbazole, benzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole (bimlim), dibenzofuran, dibenzothiophene, azacarbazole, and azabenzo [ d ]]Benzo [4,5 ] ]Imidazo [1,2-a]Imidazole, azadibenzofuran and azadibenzothiophene.
In some embodiments, L 5 Is a linking group and is selected from the group consisting of SiRR', phenyl, biphenyl, and carbazole. In some embodiments, Y 2 And Y 3 Is O.
In some embodiments, Z is B.
In some embodiments, the first and second chemical structures are formed from the same R A 、R B 、R C Or R is D Comprises the following steps of.
In some embodiments, the first and second chemical structures are not formed of the same R A 、R B 、R C Or R is D Comprises the following steps of. In some embodiments, the compound is selected from the group consisting of:
wherein X is 50 -X 79 Each independently is C or N;
wherein R is M 、R N 、R O 、R P 、R Q And R is R Having a value equal to R A 、R B 、R C And R is D The same definition;
wherein each L 1 '、L 2 ' and L 5 ' is independently a direct bond or an organic linking group.
In some embodiments, L 1 -L 5 Each selected from the group consisting of: direct bond, phenyl, pyridine, pyrimidine, triazine, carbazole, dibenzofuran (DBF) and Dibenzothiophene (DBT).
In some embodiments, L 1 '、L 2 ' and L 5 ' each selected from the group consisting of: direct bond, phenyl, pyridine, pyrimidine, triazine, carbazole, dibenzofuran (DBF) and Dibenzothiophene (DBT).
In some embodiments, L 1 -L 5 Each is a direct bond or phenyl.
In some embodiments, L 1 '、L 2 ' and L 5 ' each is a direct bond or phenyl.
In some embodiments, the compound is selected from the group consisting of:
where i is an integer from 1 to 3, j is an integer from 1 to 48, k is an integer from 1 to 57, and m, n and o are each independently an integer from 1 to 86, and,
wherein Y1 is S, Y2 is Se, and Y3 is O, and,
wherein R1 to R86 have the following structures in the list:
wherein C1 to C54 are defined in the following list:
in some embodiments, the compound is selected from the group consisting of:
in some embodiments, a compound of formula I described herein may be at least 30% deuterated, at least 40% deuterated, at least 50% deuterated, at least 60% deuterated, at least 70% deuterated, at least 80% deuterated, at least 90% deuterated, at least 95% deuterated, at least 99% deuterated, or 100% deuterated. As used herein, deuterated percentages have their ordinary meaning and include percentages of possible hydrogen atoms replaced by deuterium atoms (e.g., the position of hydrogen, deuterium, or halogen).
C. OLED and device of the present disclosure
In another aspect, the present disclosure also provides an OLED device comprising a first organic layer containing a compound as disclosed in the above compound section of the present disclosure.
In some embodiments, the first organic layer may comprise a compound as described herein.
In some embodiments, the compound may be a host, and the first organic layer may be an emissive layer comprising a phosphorescent emitter.
In some embodiments, the phosphorescent emitter may be a transition metal complex having at least one ligand or ligand moiety if the ligand is more than bidentate selected from the group consisting of:
wherein T is selected from the group consisting of B, al, ga, and In;
wherein K is 1 ' is a direct bond or is selected from NR e 、PR e O, S and Se;
wherein each Y 1 To Y 13 Independently selected from the group consisting of carbon and nitrogen;
wherein Y' is selected from the group consisting of: b R e 、N R e 、P R e 、O、S、Se、C=O、S=O、SO 2 、CR e R f 、SiR e R f And GeR e R f ;
Wherein R is e And R is f Can be fused or joined to form a ring;
wherein each R is a 、R b 、R c And R is d May independently represent a single to the maximum possible number of substitutions, or no substitution;
wherein each R is a1 、R b1 、R c1 、R d1 、R a 、R b 、R c 、R d 、R e And R is f Independently hydrogen or a substituent selected from the group consisting of the general substituents as defined herein; and is also provided with
Wherein R is a1 、R b1 、R c1 、R d1 、R a 、R b 、R c And R is d Any two adjacent substituents of (a) may be fused or joined to form a ring or form a multidentate ligand.
In some embodiments, the compound may be an acceptor, and the OLED may further comprise a sensitizer selected from the group consisting of: delayed fluorescent emitters, phosphorescent emitters, and combinations thereof.
In some embodiments, the compound may be a fluorescent emitter, a delayed fluorescent emitter, or a component of an exciplex that is a fluorescent emitter or a delayed fluorescent emitter.
In yet another aspect, the OLED of the present disclosure may further comprise an emissive region containing a compound as disclosed in the above compound portion of the present disclosure.
In some embodiments, the emissive region may comprise a compound as described herein.
In some embodiments, at least one of the anode, cathode, or new layer disposed on the organic emissive layer acts as an enhancement layer. The enhancement layer includes a plasma material exhibiting surface plasmon resonance that is non-radiatively coupled to the emitter material and transfers excited state energy from the emitter material to a non-radiative mode of surface plasmon polaritons. The enhancement layer is provided at a threshold distance from the organic emissive layer that is no more than a total non-radiative decay rate constant and a total radiative decay rate constant due to the presence of the enhancement layer, and the threshold distance is a distance where the total non-radiative decay rate constant is equal to the total radiative decay rate constant. In some embodiments, the OLED further comprises an outcoupling layer. In some embodiments, the outcoupling layer is disposed on the enhancement layer on an opposite side of the organic emissive layer. In some embodiments, the outcoupling layer is disposed on the opposite side of the emissive layer from the enhancement layer, but still allows energy to be outcoupled from the surface plasmon mode of the enhancement layer. The outcoupling layer scatters energy from the surface plasmon polaritons. In some embodiments, this energy is scattered into free space in the form of photons. In other embodiments, the energy is scattered from the surface plasmon mode to other modes of the device, such as, but not limited to, an organic waveguide mode, a substrate mode, or another waveguide mode. If the energy is scattered into the non-free space mode of the OLED, other outcoupling schemes may be incorporated to extract the energy into free space. In some embodiments, one or more intermediaries may be disposed between the enhancement layer and the outcoupling layer. Examples of the interposer may be dielectric materials including organic, inorganic, perovskite, oxide, and may include stacks and/or mixtures of these materials.
The enhancement layer modifies the effective properties of the medium in which the emitter material resides, causing any or all of the following: reduced emissivity, modification of emission line shape, variation of emission intensity with angle, variation of stability of the emitter material, variation of efficiency of the OLED, and reduced efficiency roll-off of the OLED device. Placing the enhancement layer on the cathode side, anode side, or both sides creates an OLED device that utilizes any of the effects mentioned above. In addition to the specific functional layers mentioned herein and illustrated in the various OLED examples shown in the figures, an OLED according to the present invention may also include any of the other functional layers that are typically found in an OLED.
The enhancement layer may comprise a plasma material, an optically active metamaterial or a hyperbolic metamaterial. As used herein, a plasma material is a material whose real part of the dielectric constant crosses zero in the visible or ultraviolet region of the electromagnetic spectrum. In some embodiments, the plasma material comprises at least one metal. In such embodiments, the metal may include at least one of the following: ag. Al, au, ir, pt, ni, cu, W, ta, fe, cr, mg, ga, rh, ti, ru, pd, in, bi, ca, alloys or mixtures of these materials, and stacks of these materials. In general, metamaterials are media composed of different materials, where the media as a whole acts differently than the sum of its material components. Specifically, we define an optically active metamaterial as a material having both negative permittivity and negative permeability. Hyperbolic metamaterials, on the other hand, are anisotropic media with dielectric constants or permeability having different signs for different spatial directions. Optically active metamaterials and hyperbolic metamaterials are strictly distinguished from many other photonic structures, such as distributed bragg reflectors (Distributed Bragg Reflector, "DBRs"), because the medium should exhibit uniformity in the propagation direction over the length scale of the wavelength of light. Using terminology that will be understood by those skilled in the art: the dielectric constant of a metamaterial in the propagation direction can be approximately described by an effective medium. Plasma materials and metamaterials provide a means of controlling light propagation that can enhance OLED performance in a variety of ways.
In some embodiments, the enhancement layer is provided as a planar layer. In other embodiments, the enhancement layer has periodic, quasi-periodic, or randomly arranged wavelength-sizing features, or periodic, quasi-periodic, or randomly arranged sub-wavelength-sizing features. In some embodiments, the wavelength-sized features and sub-wavelength-sized features have sharp edges.
In some embodiments, the outcoupling layer has wavelength-sizing features that are periodically, quasi-periodically, or randomly arranged, or sub-wavelength-sizing features that are periodically, quasi-periodically, or randomly arranged. In some embodiments, the outcoupling layer may be composed of a plurality of nanoparticles, and in other embodiments, the outcoupling layer is composed of a plurality of nanoparticles disposed on a material. In these embodiments, the outcoupling may be tuned by at least one of: changing the size of the plurality of nanoparticles, changing the shape of the plurality of nanoparticles, changing the material of the plurality of nanoparticles, adjusting the thickness of the material, changing the refractive index of the material or an additional layer disposed on the plurality of nanoparticles, changing the thickness of the reinforcing layer, and/or changing the material of the reinforcing layer. The plurality of nanoparticles of the device may be formed from at least one of: a metal, a dielectric material, a semiconductor material, a metal alloy, a mixture of dielectric materials, a stack or layering of one or more materials and/or a core of one type of material, and which is coated with a shell of a different type of material. In some embodiments, the outcoupling layer is composed of at least metal nanoparticles, wherein the metal is selected from the group consisting of: ag. Al, au, ir, pt, ni, cu, W, ta, fe, cr, mg, ga, rh, ti, ru, pd, in, bi, ca, alloys or mixtures of these materials, and stacks of these materials. The plurality of nanoparticles may have an additional layer disposed thereon. In some embodiments, the polarization of the emission may be tuned using an outcoupling layer. Changing the dimensions and periodicity of the outcoupling layer may select a class of polarizations that preferentially outcouple to air. In some embodiments, the outcoupling layer also serves as an electrode of the device.
In yet another aspect, the present disclosure also provides a consumer product comprising an Organic Light Emitting Device (OLED) having an anode; a cathode; and an organic layer disposed between the anode and the cathode, wherein the organic layer may comprise a compound as disclosed in the above compound section of the disclosure.
In some embodiments, a consumer product comprises an Organic Light Emitting Device (OLED) having an anode; a cathode; and an organic layer disposed between the anode and the cathode, wherein the organic layer may comprise a compound as described herein.
In some embodiments, the consumer product may be one of the following products: flat panel displays, computer monitors, medical monitors, televisions, billboards, lights for interior or exterior illumination and/or signaling, heads-up displays, fully or partially transparent displays, flexible displays, laser printers, telephones, cellular telephones, tablet computers, tablet handsets, personal Digital Assistants (PDAs), wearable devices, laptop computers, digital cameras, video cameras, viewfinders, micro-displays with a diagonal of less than 2 inches, 3-D displays, virtual or augmented reality displays, vehicles, video walls comprising a plurality of displays tiled together, theatre or gym screens, phototherapy devices, and billboards.
In general, an OLED includes at least one organic layer disposed between and electrically connected to an anode and a cathode. When a current is applied, the anode injects holes and the cathode injects electrons into the organic layer. The injected holes and electrons each migrate toward the oppositely charged electrode. When an electron and a hole are localized on the same molecule, an "exciton" is formed, which is a localized electron-hole pair having an excited energy state. Light is emitted when the exciton relaxes through a light emission mechanism. In some cases, excitons may be localized on an excimer or exciplex. Non-radiative mechanisms (such as thermal relaxation) may also occur, but are generally considered undesirable.
Several OLED materials and configurations are described in U.S. patent nos. 5,844,363, 6,303,238, and 5,707,745, which are incorporated herein by reference in their entirety.
Initial OLEDs used emissive molecules that emitted light ("fluorescence") from a singlet state, as disclosed, for example, in U.S. patent No. 4,769,292, which is incorporated by reference in its entirety. Fluorescence emission typically occurs in time frames less than 10 nanoseconds.
Recently, OLEDs have been demonstrated that have emissive materials that emit light from a triplet state ("phosphorescence"). Baldo et al, "efficient phosphorescent emission from organic electroluminescent devices (Highly Efficient Phosphorescent Emission from Organic Electroluminescent Devices)", nature, vol.395, 151-154,1998 ("Baldo-I"); and Bardo et al, "Very efficient green organic light emitting device based on electrophosphorescence (Very high-efficiency green organic light-emitting devices based on electrophosphorescence)", applied physical fast report (appl. Phys. Lett.), vol.75, stages 3,4-6 (1999) ("Bardo-II"), incorporated by reference in its entirety. Phosphorescence is described in more detail in U.S. Pat. No. 7,279,704, columns 5-6, which is incorporated by reference.
Fig. 1 shows an organic light emitting device 100. The figures are not necessarily drawn to scale. Device 100 may include a substrate 110, an anode 115, a hole injection layer 120, a hole transport layer 125, an electron blocking layer 130, an emissive layer 135, a hole blocking layer 140, an electron transport layer 145, an electron injection layer 150, a protective layer 155, a cathode 160, and a barrier layer 170. Cathode 160 is a composite cathode having a first conductive layer 162 and a second conductive layer 164. The device 100 may be fabricated by depositing the layers in sequence. The nature and function of these various layers and example materials are described in more detail in U.S. Pat. No. 7,279,704 at columns 6-10, which is incorporated by reference.
Further examples of each of these layers are available. For example, a flexible and transparent substrate-anode combination is disclosed in U.S. patent No. 5,844,363, which is incorporated by reference in its entirety. An example of a p-doped hole transport layer is doped with F in a 50:1 molar ratio 4 m-MTDATA of TCNQ, as disclosed in U.S. patent application publication No. 2003/0239980, which is incorporated by reference in its entirety. Examples of emissive and host materials are disclosed in U.S. Pat. No. 6,303,238 to Thompson et al, which is incorporated by reference in its entirety. An example of an n-doped electron transport layer is BPhen doped with Li in a molar ratio of 1:1, as disclosed in U.S. patent application publication No. 2003/0230980, which is incorporated by reference in its entirety. Examples of cathodes are disclosed in U.S. Pat. Nos. 5,703,436 and 5,707,745, which are incorporated by reference in their entirety, that include composite cathodes having a thin layer of metal (e.g., mg: ag) containing an overlying transparent, electrically conductive, sputter-deposited ITO layer. The theory and use of barrier layers is described in more detail in U.S. patent No. 6,097,147 and U.S. patent application publication No. 2003/0230980, which are incorporated by reference in their entirety. Examples of implanted layers are provided in U.S. patent application publication No. 2004/0174116, which is incorporated by reference in its entirety. A description of protective layers can be found in U.S. patent application publication No. 2004/0174116, which is incorporated by reference in its entirety.
Fig. 2 shows an inverted OLED 200. The device includes a substrate 210, a cathode 215, an emissive layer 220, a hole transport layer 225, and an anode 230. The device 200 may be fabricated by depositing the layers in sequence. Because the most common OLED configuration has a cathode disposed above an anode, and the device 200 has a cathode 215 disposed below an anode 230, the device 200 may be referred to as an "inverted" OLED. Materials similar to those described with respect to device 100 may be used in the corresponding layers of device 200. Fig. 2 provides one example of how some layers may be omitted from the structure of the apparatus 100.
The simple layered structure illustrated in fig. 1 and 2 is provided by way of non-limiting example, and it should be understood that embodiments of the present disclosure may be used in conjunction with a variety of other structures. The specific materials and structures described are exemplary in nature, and other materials and structures may be used. Functional OLEDs may be obtained by combining the various layers described in different ways, or the layers may be omitted entirely based on design, performance, and cost factors. Other layers not specifically described may also be included. Materials other than those specifically described may be used. Although many of the examples provided herein describe the various layers as comprising a single material, it should be understood that combinations of materials may be used, such as mixtures of host and dopant, or more generally, mixtures. Further, the layers may have various sublayers. The names given to the various layers herein are not intended to be strictly limiting. For example, in device 200, hole transport layer 225 transports holes and injects holes into emissive layer 220, and may be described as a hole transport layer or a hole injection layer. In one embodiment, an OLED may be described as having an "organic layer" disposed between a cathode and an anode. This organic layer may comprise a single layer, or may further comprise multiple layers of different organic materials as described, for example, with respect to fig. 1 and 2.
Structures and materials not specifically described, such as OLEDs (PLEDs) comprising polymeric materials, such as disclosed in frank (Friend) et al, U.S. patent No. 5,247,190, which is incorporated by reference in its entirety, may also be used. By way of another example, an OLED with a single organic layer may be used. The OLEDs can be stacked, for example, as described in U.S. patent No. 5,707,745 to Forrest et al, which is incorporated by reference in its entirety. The OLED structure may deviate from the simple layered structure illustrated in fig. 1 and 2. For example, the substrate may include an angled reflective surface to improve out-coupling, such as a mesa structure as described in U.S. Pat. No. 6,091,195 to Furster et al, and/or a pit structure as described in U.S. Pat. No. 5,834,893 to Boolean et al, which are incorporated by reference in their entirety.
Any of the layers of the various embodiments may be deposited by any suitable method unless otherwise specified. Preferred methods for the organic layer include thermal evaporation, ink jet (as described in U.S. Pat. Nos. 6,013,982 and 6,087,196, incorporated by reference in their entirety), organic vapor deposition (OVPD) (as described in U.S. Pat. No. 6,337,102, incorporated by reference in its entirety), and deposition by organic vapor jet printing (OVJP, also known as Organic Vapor Jet Deposition (OVJD)), as described in U.S. Pat. No. 7,431,968, incorporated by reference in its entirety. Other suitable deposition methods include spin-coating and other solution-based processes. The solution-based process is preferably carried out under nitrogen or an inert atmosphere. For other layers, the preferred method includes thermal evaporation. Preferred patterning methods include deposition through a mask, cold welding (as described in U.S. patent nos. 6,294,398 and 6,468,819, incorporated by reference in their entirety), and patterning associated with some of the deposition methods such as inkjet and Organic Vapor Jet Printing (OVJP). Other methods may also be used. The material to be deposited may be modified to suit the particular deposition method. For example, substituents such as alkyl and aryl groups that are branched or unbranched and preferably contain at least 3 carbons can be used in small molecules to enhance their ability to withstand solution processing. Substituents having 20 carbons or more may be used, and 3 to 20 carbons are a preferred range. A material with an asymmetric structure may have better solution processibility than a material with a symmetric structure because an asymmetric material may have a lower tendency to recrystallize. Dendrimer substituents may be used to enhance the ability of small molecules to undergo solution processing.
Devices fabricated according to embodiments of the present disclosure may further optionally include a barrier layer. One purpose of the barrier layer is to protect the electrodes and organic layers from harmful substances exposed to the environment including moisture, vapors and/or gases, etc. The barrier layer may be deposited on the substrate, electrode, under or beside the substrate, electrode, or on any other portion of the device, including the edge. The barrier layer may comprise a single layer or multiple layers. The barrier layer may be formed by various known chemical vapor deposition techniques and may include a composition having a single phase and a composition having multiple phases. Any suitable material or combination of materials may be used for the barrier layer. The barrier layer may incorporate inorganic compounds or organic compounds or both. Preferred barrier layers comprise a mixture of polymeric and non-polymeric materials, as described in U.S. patent No. 7,968,146, PCT patent application No. PCT/US2007/023098, and PCT/US2009/042829, which are incorporated herein by reference in their entirety. To be considered as a "mixture", the aforementioned polymeric and non-polymeric materials that make up the barrier layer should be deposited under the same reaction conditions and/or simultaneously. The weight ratio of polymeric material to non-polymeric material may be in the range of 95:5 to 5:95. The polymeric material and the non-polymeric material may be produced from the same precursor material. In one example, the mixture of polymeric and non-polymeric materials consists essentially of polymeric silicon and inorganic silicon.
Devices manufactured in accordance with embodiments of the present disclosure may be incorporated into a wide variety of electronic component modules (or units), which may be incorporated into a wide variety of electronic products or intermediate components. Examples of such electronic products or intermediate components include display screens, lighting devices (e.g., discrete light source devices or lighting panels), etc., that may be utilized by end user product manufacturers. The electronics assembly module may optionally include drive electronics and/or a power source. Devices manufactured in accordance with embodiments of the present disclosure may be incorporated into a wide variety of consumer products having one or more electronic component modules (or units) incorporated therein. Disclosed is a consumer product comprising an OLED comprising a compound of the present disclosure in an organic layer in the OLED. The consumer product should include any kind of product that contains one or more light sources and/or one or more of some type of visual display. Some examples of such consumer products include flat panel displays, curved displays, computer monitors, medical monitors, televisions, billboards, lights for interior or exterior illumination and/or signaling, heads-up displays, fully or partially transparent displays, flexible displays, rollable displays, foldable displays, stretchable displays, laser printers, telephones, cellular telephones, tablet computers, tablet phones, personal Digital Assistants (PDAs), wearable devices, laptop computers, digital cameras, video cameras, viewfinders, micro-displays (displays with a diagonal of less than 2 inches), 3-D displays, virtual or augmented reality displays, vehicles, video walls including a plurality of tiled displays, theatre or gym screens, phototherapy devices, and signs. Various control mechanisms may be used to control devices manufactured in accordance with the present disclosure, including passive matrices and active matrices. Many of the devices are intended to be used in a temperature range that is comfortable for humans, such as 18 ℃ to 30 ℃, and more preferably at room temperature (20-25 ℃), but can be used outside this temperature range (e.g., -40 ℃ to +80 ℃).
Further details regarding OLEDs and the definitions described above can be found in U.S. patent No. 7,279,704, which is incorporated herein by reference in its entirety.
The materials and structures described herein may be applied in devices other than OLEDs. For example, other optoelectronic devices such as organic solar cells and organic photodetectors may employ the materials and structures. More generally, organic devices such as organic transistors may employ the materials and structures.
In some embodiments, the OLED has one or more features selected from the group consisting of: flexible, crimpable, collapsible, stretchable and bendable. In some embodiments, the OLED is transparent or translucent. In some embodiments, the OLED further comprises a layer comprising carbon nanotubes.
In some embodiments, the OLED further comprises a layer comprising a delayed fluorescent emitter. In some embodiments, the OLED includes an RGB pixel arrangement or a white plus color filter pixel arrangement. In some embodiments, the OLED is a mobile device, a handheld device, or a wearable device. In some embodiments, the OLED is a display panel having a diagonal of less than 10 inches or an area of less than 50 square inches. In some embodiments, the OLED is a display panel having a diagonal of at least 10 inches or an area of at least 50 square inches. In some embodiments, the OLED is an illumination panel.
In some embodiments, the compound may be an emissive dopant. In some embodiments, the compounds may produce emissions via phosphorescence, fluorescence, thermally activated delayed fluorescence (i.e., TADF, also known as delayed fluorescence of type E, see, e.g., U.S. application No. 15/700,352, which is incorporated herein by reference in its entirety), triplet-triplet annihilation, or combinations of these processes. In some embodiments, the emissive dopant may be a racemic mixture, or may be enriched in one enantiomer. In some embodiments, the compounds may be homoleptic (identical for each ligand). In some embodiments, the compounds may be compounded (at least one ligand is different from the others). In some embodiments, when there is more than one ligand coordinated to the metal, the ligands may all be the same. In some other embodiments, at least one ligand is different from the other ligands. In some embodiments, each ligand may be different from each other. This is also true in embodiments where the ligand coordinated to the metal may be linked to other ligands coordinated to the metal to form a tridentate, tetradentate, pentadentate or hexadentate ligand. Thus, where the coordinating ligands are linked together, in some embodiments all of the ligands may be the same, and in some other embodiments at least one of the linking ligands may be different from the other ligand(s).
In some embodiments, the compound may be used as a component of an exciplex to be used as a sensitizer.
In some embodiments, the sensitizer is a single component, or one of the components, that forms an exciplex.
According to another aspect, a formulation comprising a compound described herein is also disclosed.
The OLEDs disclosed herein can be incorporated into one or more of consumer products, electronics assembly modules, and lighting panels. The organic layer may be an emissive layer, and the compound may be an emissive dopant in some embodiments, and the compound may be a non-emissive dopant in other embodiments.
In yet another aspect of the invention, a formulation comprising the novel compounds disclosed herein is described. The formulation may comprise one or more components disclosed herein selected from the group consisting of: a solvent, a host, a hole injection material, a hole transport material, an electron blocking material, a hole blocking material, and an electron transport material.
The present disclosure encompasses any chemical structure comprising the novel compounds of the present disclosure or monovalent or multivalent variants thereof. In other words, the compounds of the invention or monovalent or multivalent variants thereof may be part of a larger chemical structure. Such chemical structures may be selected from the group consisting of: monomers, polymers, macromolecules and supramolecules (also known as supramolecules). As used herein, "monovalent variant of a compound" refers to the same moiety as the compound but with one hydrogen removed and replaced with a bond to the rest of the chemical structure. As used herein, "multivalent variant of a compound" refers to a moiety that is identical to the compound but where more than one hydrogen has been removed and replaced with one or more bonds to the rest of the chemical structure. In the case of supramolecules, the compounds of the present invention may also be incorporated into supramolecular complexes without covalent bonds.
D. Combinations of compounds of the present disclosure with other materials
Materials described herein as suitable for use in particular layers in an organic light emitting device may be used in combination with a variety of other materials present in the device. For example, the emissive dopants disclosed herein can be used in combination with a wide variety of hosts, transport layers, barrier layers, implant layers, electrodes, and other layers that may be present. The materials described or mentioned below are non-limiting examples of materials that may be used in combination with the compounds disclosed herein, and one of ordinary skill in the art may readily review the literature to identify other materials that may be used in combination.
a) Conductive dopants:
the charge transport layer may be doped with a conductive dopant to substantially change its charge carrier density, which in turn will change its conductivity. Conductivity is increased by the generation of charge carriers in the host material and, depending on the type of dopant, a change in Fermi level (Fermi level) of the semiconductor can also be achieved. The hole transport layer may be doped with a p-type conductivity dopant, and an n-type conductivity dopant is used in the electron transport layer.
Non-limiting examples of conductive dopants that can be used in OLEDs in combination with the materials disclosed herein are exemplified below along with references disclosing those materials: EP01617493, EP01968131, EP2020694, EP2684932, US20050139810, US20070160905, US20090167167, US2010288362, WO06081780, WO2009003455, WO2009008277, WO2009011327, WO2014009310, US2007252140, US2015060804, US20150123047 and US2012146012.
b)HIL/HTL:
The hole injection/transport material used in the present disclosure is not particularly limited, and any compound may be used as long as the compound is generally used as a hole injection/transport material. Examples of materials include (but are not limited to): phthalocyanines or porphyrin derivatives; aromatic amine derivatives; indolocarbazole derivatives; a fluorocarbon-containing polymer; a polymer having a conductive dopant; conductive polymers such as PEDOT/PSS; self-assembled monomers derived from compounds such as phosphonic acids and silane derivatives; metal oxide derivativesSuch as MoO x The method comprises the steps of carrying out a first treatment on the surface of the p-type semiconducting organic compounds such as 1,4,5,8,9, 12-hexaazatriphenylene hexacarbonitrile; a metal complex; a crosslinkable compound.
Examples of aromatic amine derivatives for the HIL or HTL include, but are not limited to, the following general structures:
Ar 1 to Ar 9 Is selected from: a group consisting of, for example, the following aromatic hydrocarbon cyclic compounds: benzene, biphenyl, triphenylene, naphthalene, anthracene, benzene, phenanthrene, fluorene, pyrene, and the like,Perylene and azulene; a group consisting of aromatic heterocyclic compounds such as: dibenzothiophene, dibenzofuran, dibenzoselenophene, furan, thiophene, benzofuran, benzothiophene, benzoselenophene, carbazole, indolocarbazole, pyridylindole, pyrrolodipyridine, pyrazole, imidazole, triazole, oxazole, thiazole, oxadiazole, thiadiazole, pyridine, pyridazine, pyrimidine, pyrazine, triazine, oxazine, oxathiazine, oxadiazine, indole, benzimidazole, indazole, indolizine, benzoxazole, benzisoxazole, benzothiazole, quinoline, isoquinoline, cinnoline, quinazoline, quinoxaline, naphthyridine, phthalazine, pteridine, xanthene, acridine, phenazine, phenothiazine, phenoxazine, benzofuranpyridine, furandipyridine, benzothiophene pyridine, thienodipyridine, benzoselenophenopyridine, and selenophenodipyridine; and a group consisting of 2 to 10 cyclic structural units which are the same type or different types of groups selected from an aromatic hydrocarbon ring group and an aromatic heterocyclic group and are bonded to each other directly or via at least one of an oxygen atom, a nitrogen atom, a sulfur atom, a silicon atom, a phosphorus atom, a boron atom, a chain structural unit, and an aliphatic ring group. Each Ar may be unsubstituted or may be substituted with a substituent selected from the group consisting of: deuterium, halogen, alkyl, Cycloalkyl, heteroalkyl, heterocycloalkyl, aralkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, and combinations thereof.
In one aspect, ar 1 To Ar 9 Independently selected from the group consisting of:
wherein k is an integer of 1 to 20; x is X 101 To X 108 Is C (including CH) or N; z is Z 101 Is NAr 1 O or S; ar (Ar) 1 Having the same groups as defined above.
Examples of metal complexes used in the HIL or HTL include, but are not limited to, the following general formula:
wherein Met is a metal that may have an atomic weight greater than 40; (Y) 101 -Y 102 ) Is a bidentate ligand, Y 101 And Y 102 Independently selected from C, N, O, P and S; l (L) 101 Is an auxiliary ligand; k' is an integer value from 1 to the maximum number of ligands that can be attached to the metal; and k' +k "is the maximum number of ligands that can be attached to the metal.
In one aspect, (Y) 101 -Y 102 ) Is a 2-phenylpyridine derivative. In another aspect, (Y) 101 -Y 102 ) Is a carbene ligand. In another aspect, met is selected from Ir, pt, os, and Zn. In another aspect, the metal complex has a chemical structure as compared to an Fc + The minimum oxidation potential in solution of less than about 0.6V for Fc coupling.
Non-limiting examples of HIL and HTL materials that can be used in an OLED in combination with the materials disclosed herein are exemplified with references disclosing those materials as follows: CN, DE, EP EP, JP07-, JP EP, EP JP07-, JP US, US US, WO US, US WO, WO.
c)EBL:
An Electron Blocking Layer (EBL) may be used to reduce the number of electrons and/or excitons that leave the emissive layer. The presence of such a barrier layer in a device may result in substantially higher efficiency and/or longer lifetime than a similar device lacking such a barrier layer. Furthermore, a blocking layer may be used to limit the emission to a desired area of the OLED. In some embodiments, the EBL material has a higher LUMO (closer to the vacuum level) and/or higher triplet energy than the emitter closest to the EBL interface. In some embodiments, the EBL material has a higher LUMO (closer to vacuum level) and/or higher triplet energy than one or more of the hosts closest to the EBL interface. In one aspect, the compound used in the EBL contains the same molecule or the same functional group as used in one of the hosts described below.
d) A main body:
the light-emitting layer of the organic EL device of the present disclosure preferably contains at least a metal complex as a light-emitting material, and may contain a host material using the metal complex as a dopant material. Examples of the host material are not particularly limited, and any metal complex or organic compound may be used as long as the triplet energy of the host is greater than that of the dopant. Any host material may be used with any dopant so long as the triplet criteria are met.
Examples of metal complexes used as hosts preferably have the general formula:
wherein Met is a metal; (Y) 103 -Y 104 ) Is a bidentate ligand, Y 103 And Y 104 Independently selected from C, N, O, P and S; l (L) 101 Is another ligand; k' is 1 to be connected with metalAn integer value of the maximum ligand number; and k' +k "is the maximum number of ligands that can be attached to the metal.
In one aspect, the metal complex is:
wherein (O-N) is a bidentate ligand having a metal coordinated to the O and N atoms.
In another aspect, met is selected from Ir and Pt. In another aspect, (Y) 103 -Y 104 ) Is a carbene ligand.
In one aspect, the host compound contains at least one selected from the group consisting of: a group consisting of, for example, the following aromatic hydrocarbon cyclic compounds: benzene, biphenyl, triphenylene, tetramethylene, naphthalene, anthracene, phenalene, phenanthrene, fluorene, pyrene,Perylene and azulene; a group consisting of aromatic heterocyclic compounds such as: dibenzothiophene, dibenzofuran, dibenzoselenophene, furan, thiophene, benzofuran, benzothiophene, benzoselenophene, carbazole, indolocarbazole, pyridylindole, pyrrolodipyridine, pyrazole, imidazole, triazole, oxazole, thiazole, oxadiazole, thiadiazole, pyridine, pyridazine, pyrimidine, pyrazine, triazine, oxazine, oxathiazine, oxadiazine, indole, benzimidazole, indazole, indolizine, benzoxazole, benzisoxazole, benzothiazole, quinoline, isoquinoline, cinnoline, quinazoline, quinoxaline, naphthyridine, phthalazine, pteridine, xanthene, acridine, phenazine, phenothiazine, phenoxazine, benzofuranpyridine, furandipyridine, benzothiophene pyridine, thienodipyridine, benzoselenophenopyridine, and selenophenodipyridine; and a group consisting of 2 to 10 cyclic structural units which are the same type or different types of groups selected from aromatic hydrocarbon ring groups and aromatic heterocyclic groups and are selected directly or via oxygen atoms, nitrogen atoms, sulfur atoms, silicon atoms, phosphorus atoms, boron atoms At least one of the atom, the chain structural unit and the aliphatic cyclic group is bonded to each other. Each option in each group may be unsubstituted or may be substituted with a substituent selected from the group consisting of: deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, aralkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, and combinations thereof.
In one aspect, the host compound contains in the molecule at least one of the following groups:
wherein R is 101 Selected from the group consisting of: hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, aralkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, and combinations thereof, and when it is aryl or heteroaryl, it has a similar definition as Ar mentioned above. k is 0 to 20 or an integer of 1 to 20. X is X 101 To X 108 Independently selected from C (including CH) or N. Z is Z 101 And Z 102 Independently selected from NR 101 O or S.
Non-limiting examples of host materials that can be used in OLEDs in combination with the materials disclosed herein are exemplified below along with references disclosing those materials: US, WO WO, WO-based US, WO WO, US, US and US,
e) Other emitters:
one or more other emitter dopants may be used in combination with the compounds of the present invention. Examples of other emitter dopants are not particularly limited, and any compound may be used as long as the compound is generally used as an emitter material. Examples of suitable emitter materials include, but are not limited to, compounds that can produce emissions via phosphorescence, fluorescence, thermally activated delayed fluorescence (i.e., TADF, also known as E-delayed fluorescence), triplet-triplet annihilation, or combinations of these processes.
Non-limiting examples of emitter materials that can be used in OLEDs in combination with the materials disclosed herein are exemplified below along with references disclosing those materials: CN, EB, EP1239526, EP, JP, KR TW, US20010019782, US TW, US20010019782, US US, US US, WO US, US US, WO.
f)HBL:
A Hole Blocking Layer (HBL) may be used to reduce the number of holes and/or excitons that leave the emissive layer. The presence of such a barrier layer in a device may result in substantially higher efficiency and/or longer lifetime than a similar device lacking the barrier layer. Furthermore, a blocking layer may be used to limit the emission to a desired area of the OLED. In some embodiments, the HBL material has a lower HOMO (farther from the vacuum level) and/or higher triplet energy than the emitter closest to the HBL interface. In some embodiments, the HBL material has a lower HOMO (farther from the vacuum level) and/or higher triplet energy than one or more of the hosts closest to the HBL interface.
In one aspect, the compound used in the HBL contains the same molecules or the same functional groups as used in the host described above.
In another aspect, the compound used in the HBL contains in the molecule at least one of the following groups:
wherein k is an integer of 1 to 20; l (L) 101 Is another ligand, and k' is an integer of 1 to 3.
g)ETL:
An Electron Transport Layer (ETL) may include a material capable of transporting electrons. The electron transport layer may be intrinsic (undoped) or doped. Doping may be used to enhance conductivity. Examples of the ETL material are not particularly limited, and any metal complex or organic compound may be used as long as it is generally used to transport electrons.
In one aspect, the compounds used in ETL contain in the molecule at least one of the following groups:
wherein R is 101 Selected from the group consisting of: hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, aralkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, and combinations thereof, when aryl or heteroaryl, have similar definitions as for Ar described above. Ar (Ar) 1 To Ar 3 Has a similar definition to Ar mentioned above. k is an integer of 1 to 20. X is X 101 To X 108 Selected from C (including CH) or N.
In another aspect, the metal complex used in ETL contains (but is not limited to) the following formula:
wherein (O-N) or (N-N) is a bidentate ligand having a metal coordinated to atom O, N or N, N; l (L) 101 Is another ligand; k' is an integer value from 1 to the maximum number of ligands that can be attached to the metal.
Non-limiting examples of ETL materials that can be used in an OLED in combination with the materials disclosed herein are exemplified below along with references disclosing those materials: CN103508940, EP01602648, EP01734038, EP01956007, JP2004-022334, JP2005149918, JP2005-268199, KR0117693, KR20130108183, US20040036077, US20070104977, US2007018155, US20090101870, US20090115316, US20090140637, US20090179554, US2009218940, US2010108990, US2011156017, US2011210320, US2012193612, US2012214993, US2014014925, US2014014927, US20140284580, US6656612, US8415031, WO2003060956, WO2007111263, WO2009148269, WO2010067894, WO2010072300, WO2011074770, WO2011105373, WO2013079217, WO2013145667, WO2013180376, WO2014104499, WO2014104535,
h) Charge Generation Layer (CGL)
In tandem or stacked OLEDs, CGL plays a fundamental role in performance, consisting of n-doped and p-doped layers for injecting electrons and holes, respectively. Electrons and holes are supplied by the CGL and the electrode. Electrons and holes consumed in the CGL are refilled with electrons and holes injected from the cathode and anode, respectively; subsequently, the bipolar current gradually reaches a steady state. Typical CGL materials include n and p conductivity dopants used in the transport layer.
In any of the above mentioned compounds used in each layer of the OLED device, the hydrogen atoms may be partially or fully deuterated. The minimum amount of deuterated hydrogen in the compound is selected from the group consisting of: 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99% and 100%. Thus, any of the specifically listed substituents, such as (but not limited to) methyl, phenyl, pyridyl, and the like, can be in their non-deuterated, partially deuterated, and fully deuterated forms. Similarly, substituent classes (e.g., without limitation, alkyl, aryl, cycloalkyl, heteroaryl, etc.) can also be in their non-deuterated, partially deuterated, and fully deuterated forms.
It should be understood that the various embodiments described herein are by way of example only and are not intended to limit the scope of the invention. For example, many of the materials and structures described herein may be substituted with other materials and structures without departing from the spirit of the invention. The invention as claimed may thus include variations of the specific examples and preferred embodiments described herein, as will be apparent to those skilled in the art. It should be understood that the various theories as to why the present invention works are not intended to be limiting.
Experiment
Synthesis of Compound 43- (C10) (R1) (R1) (R1) (R1) (R1)
A mixture of the compound 2-iodotetraphenylene (0.10 g,0.232 mmol), 3- (triphenylsilyl) -9H-carbazole (0.11 g,0.256 mmol), sodium tert-butoxide (45 mg, 0.460 mmol) in meta-xylene (2 mL) was bubbled with nitrogen for 15 min. Allyl palladium chloride dimer (4 mg, 12. Mu. Mol) and di-tert-butyl (2, 2-diphenyl-1-methyl-1-cyclopropyl) phosphine (cBRIDP) (4 mg, 12. Mu. Mol) were added and bubbling was continued for 5 minutes and heating was performed at 100℃for 4 hours. The reaction mixture was cooled to room temperature and diluted with dichloromethane (10 mL) and water (10 mL). The layers were separated and the aqueous layer was extracted with dichloromethane (3X 5 mL). The combined organic layers were concentrated onto silica and purified by column chromatography eluting with methylene chloride/hexane to give 9- (tetraphenylen-2-yl) -3- (triphenylsilyl) -9H-carbazole (compound 43- (C10) (R1)) (0.16 g,95% yield) as a white solid.
The lowest triplet energy (T1) of compound 43- (C10) (R1) (R1) (R1) (R1) (R1) was measured as 406nm. T1 is obtained from the beginning of the phosphorescence emission spectrum determined from the gated emission of frozen sample in 2-MeTHF at 77K, taking 20% of the peak maximum. Gated emission spectra were collected on a Horiba Fluorolog-3 spectrofluorimeter equipped with a xenon lamp with a flash delay of 10 milliseconds and a 50 millisecond collection window. The sample was excited at 300 nm. The high triplet energy of compound 43- (C10) (R1) makes it very suitable as a host for deep blue OLEDs.
Claims (15)
1. A compound of the formula I,
wherein X is 1 -X 16 Each independently is C or N;
wherein R is A 、R B 、R C And R is D Each independently represents a single substitution to a maximum amount of substitution, or no substitution;
wherein R is A 、R B 、R C And R is D Each independently selected from the group consisting of: hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, boron, aralkyl, alkoxy, aryloxy, amino, silyl, germanyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, seleno, and combinations thereof;
wherein R is A 、R B 、R C And R is D Comprises a first chemical structure selected from formulas II-VI;
wherein R is A 、R B 、R C And R is D Comprises a second chemical structure selected from formulas II-VI;
wherein the first chemical structure and theThe second chemical structure may be composed of the same R A 、R B 、R C Or R is D Comprises the following steps of;
wherein formulae II-VI are as follows:
---L 1 -SiR 1 R 2 R 3 a formula II;
wherein X is 17 -X 49 Each independently is C or N;
wherein X is 33 -X 38 At least one of which is N;
wherein Y is 1 、Y 2 And Y 3 Each independently selected from O, S, se, NR, BR, BRR ', PR, CR, c= O, C = S, C =nr, c=crr ', CRR ', SO 2 SiRR ', geRR' and P (O) R;
Wherein Y is 2 And Y 3 Are identical;
wherein Z is selected from the group consisting of B, al, ga, PO and N;
wherein R, R', R 1 、R 2 、R 3 、R E 、R F 、R G 、R H 、R I 、R J 、R K And R is L Each independently represents a single substitution to a maximum amount of substitution, or no substitution;
wherein R, R', R 1 、R 2 、R 3 、R E 、R F 、R G 、R H 、R I 、R J 、R K And R is L Each independently selected from the group consisting of: hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, boron, aralkyl, alkoxy, aryloxy, amino, silyl, germanyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acylA group, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, seleno, and combinations thereof;
wherein each L 1 、L 2 、L 3 、L 4 And L 5 Independently a direct bond or a linking group;
provided that two R A 、R B 、R C And R is D Substituents do not join to form a ring;
provided that R A 、R B 、R C Or R is D Does not contain tetraphenylene or aza-tetraphenylene;
provided that if the first chemical structure and the second chemical structure are both of formula IV, or if the first chemical structure is of formula IV and the second chemical structure is of formula V, at least one R A 、R B 、R C Or R is D Comprising a chemical structure selected from formulas II, III and VI;
wherein any two substituents may join or fuse to form a ring.
2. The compound of claim 1, wherein each R, R', R 1 、R 2 、R 3 、R A 、R B 、R C 、R D 、R E 、R F 、R G 、R H 、R I 、R J 、R K And R is L Independently hydrogen or a substituent selected from the group consisting of: deuterium, fluorine, alkyl, cycloalkyl, heteroalkyl, alkoxy, aryloxy, amino, silyl, boron, alkenyl, cycloalkenyl, heteroalkenyl, aryl, heteroaryl, nitrile, isonitrile, thio, and combinations thereof.
3. The compound according to claim 1, wherein X 1 -X 16 Is C.
4. The compound of claim 1, wherein R 1 -R 3 Comprises a 6 membered carbocyclic aromatic ring.
5. The compound of claim 1, wherein L 1 -L 5 At least one of which is a direct bond or comprises a 6 membered carbocyclic aromatic ring.
6. The compound of claim 1, wherein L 1 Is a linking group and is selected from the group consisting of: o, S, CRR ', siRR ', geRR ', phenyl, pyridine, pyrazine, pyrimidine, triazine, biphenyl, carbazole, benzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole (bimlim), dibenzofuran, dibenzothiophene, azacarbazole, and azabenzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole, azadibenzofuran and azadibenzothiophene, or wherein L 2 Is a linking group and is selected from the group consisting of: o, S, CRR ', siRR ', geRR ', phenyl, pyridine, pyrazine, pyrimidine, triazine, biphenyl, carbazole, benzo [ d ] ]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole (bimlim), dibenzofuran, dibenzothiophene, azacarbazole, and azabenzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole, azadibenzofuran and azadibenzothiophene, or wherein L 3 Is a linking group and is selected from the group consisting of: o, S, CRR ', siRR ', geRR ', phenyl, pyridine, pyrazine, pyrimidine, triazine, biphenyl, carbazole, benzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole (bimlim), dibenzofuran, dibenzothiophene, azacarbazole, and azabenzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole, azadibenzofuran and azadibenzothiophene, or wherein L 4 Is a linking group and is selected from the group consisting of: o, S, CRR ', siRR ', geRR ', phenyl, pyridine, pyrazine, pyrimidine, triazine, biphenyl, carbazole, benzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole (bimlim), dibenzofuran, dibenzothiophene, azacarbazole, and azabenzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole, azadibenzofuran and azadibenzothiophene, or wherein L 5 Is a linking group and is selected from the group consisting of: o, S, CRR ', siRR ', geRR ', phenyl, pyridine, pyrazine, pyrimidine, triazine, biphenyl, carbazole, benzo [ d ] ]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole (bimtim), dibenzofuran, dibenzothiophene, and nitrogenHeterocarbazole, aza-benzo [ d ]]Benzo [4,5 ]]Imidazo [1,2-a]Imidazole, azadibenzofuran and azadibenzothiophene.
7. The compound according to claim 1, wherein X 17 -X 24 At least seven of which are C, or wherein X 25 -X 32 At least seven of which are C, or wherein X 33 -X 38 Exactly one of (a) is N, or wherein X 39 -X 49 Is C.
8. The compound of claim 1, wherein Y 1 Is NR, O or S.
9. The compound of claim 1, wherein Y 2 And Y 3 Is O, and wherein Z is B.
10. The compound of claim 1, wherein the compound is selected from the group consisting of:
wherein X is 50 -X 79 Each independently is C or N;
wherein R is M 、R N 、R O 、R P 、R Q And R is R Having a value equal to R A 、R B 、R C And R is D The same definition;
wherein each L 1 '、L 2 ' and L 5 ' is independently a direct bond or an organic linking group.
11. The compound of claim 1, wherein L 1 -L 5 Each selected from the group consisting of: direct bond, phenyl, pyridine, pyrimidine, triazine, carbazole, dibenzofuran (DBF) and Dibenzothiophene (DBT), or wherein L 1 '、L 2 ' and L 5 ' each selected from the group consisting of: direct bond, phenyl, pyridine, pyrimidine, triazine, carbazole, dibenzofuran (DBF) and Dibenzothiophene (DBT).
12. The compound of claim 1, wherein the compound is selected from the group consisting of:
where i is an integer from 1 to 3, j is an integer from 1 to 49, k is an integer from 1 to 58, and m, n and o are each independently an integer from 1 to 86, and,
wherein Y1 is S, Y2 is Se, and Y3 is O, and,
wherein R1 to R86 have the following structures in the list:
wherein C1 to C54 are defined in the following list:
14. an organic light emitting device OLED comprising:
an anode;
a cathode; and
an organic layer disposed between the anode and the cathode, wherein the organic layer comprises a compound of formula I:
wherein X is 1 -X 16 Each independently is C or N;
wherein R is A 、R B 、R C And R is D Each independently represents a single substitution to a maximum amount of substitution, or no substitution;
wherein R is A 、R B 、R C And R is D Each independently selected from the group consisting of: hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, boron, aralkyl, alkoxy, aryloxy, amino, silyl, germanyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, seleno, and combinations thereof;
Wherein R is A 、R B 、R C And R is D Comprises a first chemical structure selected from formulas II-VI;
wherein R is A 、R B 、R C And R is D Comprises a second chemical structure selected from formulas II-VI;
wherein the first chemical structure and the second chemical structure may be formed from the same R A 、R B 、R C Or R is D Comprises the following steps of;
wherein formulae II-VI are as follows:
---L 1 -SiR 1 R 2 R 3 a formula II;
wherein X is 17 -X 49 Each independently is C or N;
wherein X is 33 -X 38 At least one of which is N;
wherein Y is 1 、Y 2 And Y 3 Each independently selected from O, S, se, NR, BR, BRR', PR, CR, c= O, C = S, C =NR、C=CRR'、CRR'、SO、SO 2 SiRR ', geRR' and P (O) R;
wherein Y is 2 And Y 3 Are identical;
wherein Z is selected from the group consisting of B, al, ga, PO and N;
wherein R, R', R 1 、R 2 、R 3 、R E 、R F 、R G 、R H 、R I 、R J 、R K And R is L Each independently represents a single substitution to a maximum amount of substitution, or no substitution;
wherein R, R', R 1 、R 2 、R 3 、R E 、R F 、R G 、R H 、R I 、R J 、R K And R is L Each independently selected from the group consisting of: hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, boron, aralkyl, alkoxy, aryloxy, amino, silyl, germanyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, seleno, and combinations thereof;
Wherein each L 1 、L 2 、L 3 、L 4 And L 5 Independently a direct bond or an organic linking group;
provided that two R A 、R B 、R C And R is D Substituents do not join to form a ring;
provided that R A 、R B 、R C Or R is D Does not contain tetraphenylene or aza-tetraphenylene;
provided that if the first chemical structure and the second chemical structure are both of formula IV, or if the first chemical structure is of formula IV and the second chemical structure is of formula V, at least one R A 、R B 、R C Or R is D Comprising a chemical structure selected from formulas II, III and VI;
wherein any two substituents may join or fuse to form a ring.
15. A consumer product comprising an organic light emitting device OLED, the organic light emitting device comprising:
an anode;
a cathode; and
an organic layer disposed between the anode and the cathode,
wherein the organic layer comprises a compound of formula I:
wherein X is 1 -X 16 Each independently is C or N;
wherein R is A 、R B 、R C And R is D Each independently represents a single substitution to a maximum amount of substitution, or no substitution;
wherein R is A 、R B 、R C And R is D Each independently selected from the group consisting of: hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, boron, aralkyl, alkoxy, aryloxy, amino, silyl, germanyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, seleno, and combinations thereof;
Wherein R is A 、R B 、R C And R is D Comprises a first chemical structure selected from formulas II-VI; wherein R is A 、R B 、R C And R is D Comprises a second chemical structure selected from formulas II-VI;
wherein the first chemical structure and the second chemical structure may be formed from the same R A 、R B 、R C Or R is D Comprises the following steps of; wherein formulae II-VI are as follows:
---L 1 -SiR 1 R 2 R 3 a formula II;
wherein X is 17 -X 49 Each independently is C or N;
wherein X is 33 -X 38 At least one of which is N;
wherein Y is 1 、Y 2 And Y 3 Each independently selected from O, S, se, NR, BR, BRR ', PR, CR, c= O, C = S, C =nr, c=crr ', CRR ', SO 2 SiRR ', geRR' and P (O) R;
wherein Y is 2 And Y 3 Are identical;
wherein Z is selected from the group consisting of B, al, ga, PO and N;
wherein R, R', R 1 、R 2 、R 3 、R E 、R F 、R G 、R H 、R I 、R J 、R K And R is L Each independently represents a single substitution to a maximum amount of substitution, or no substitution;
wherein R, R', R 1 、R 2 、R 3 、R E 、R F 、R G 、R H 、R I 、R J 、R K And R is L Each independently selected from the group consisting of: hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, boron, aralkyl, alkoxy, aryloxy, amino, silyl, germanyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, thio, sulfinyl, sulfonyl, phosphino, seleno, and combinations thereof;
Wherein each L 1 、L 2 、L 3 、L 4 And L 5 Independently a direct bond or an organic linking group;
provided that two R A 、R B 、R C And R is D Substituents do not join to form a ring;
provided that R A 、R B 、R C Or R is D Does not contain tetraphenylene or aza-tetraphenylene;
provided that if the first chemical structure and the second chemical structure are both of formula IV, or if the first chemical structure is of formula IV and the second chemical structure is of formula V, at least one R A 、R B 、R C Or R is D Comprising a chemical structure selected from formulas II, III and VI;
wherein any two substituents may join or fuse to form a ring.
Applications Claiming Priority (36)
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US202263358655P | 2022-07-06 | 2022-07-06 | |
US63/358,655 | 2022-07-06 | ||
US202263368521P | 2022-07-15 | 2022-07-15 | |
US63/368,521 | 2022-07-15 | ||
US202263396852P | 2022-08-10 | 2022-08-10 | |
US63/396,852 | 2022-08-10 | ||
US202263373562P | 2022-08-26 | 2022-08-26 | |
US63/373,562 | 2022-08-26 | ||
US202263374383P | 2022-09-02 | 2022-09-02 | |
US63/374,383 | 2022-09-02 | ||
US18/062,137 US20230192714A1 (en) | 2021-12-16 | 2022-12-06 | Organic electroluminescent materials and devices |
US18/062,124 | 2022-12-06 | ||
US18/062,110 | 2022-12-06 | ||
US18/062,118 US20230192636A1 (en) | 2021-12-16 | 2022-12-06 | Organic electroluminescent materials and devices |
US18/062,118 | 2022-12-06 | ||
US18/062,106 US20230200212A1 (en) | 2021-12-16 | 2022-12-06 | Organic electroluminescent materials and devices |
US18/062,124 US20230286989A1 (en) | 2021-12-16 | 2022-12-06 | Organic electroluminescent materials and devices |
US18/062,113 US20230192730A1 (en) | 2021-12-16 | 2022-12-06 | Organic electroluminescent materials and devices |
US18/062,110 US20230192665A1 (en) | 2021-12-16 | 2022-12-06 | Organic electroluminescent materials and devices |
US18/062,106 | 2022-12-06 | ||
US18/062,195 US20230192739A1 (en) | 2021-12-16 | 2022-12-06 | Organic electroluminescent materials and devices |
US18/062,195 | 2022-12-06 | ||
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