KR101728372B1 - Method for manufacturing of organic Light Emitting Device - Google Patents
Method for manufacturing of organic Light Emitting Device Download PDFInfo
- Publication number
- KR101728372B1 KR101728372B1 KR1020160068005A KR20160068005A KR101728372B1 KR 101728372 B1 KR101728372 B1 KR 101728372B1 KR 1020160068005 A KR1020160068005 A KR 1020160068005A KR 20160068005 A KR20160068005 A KR 20160068005A KR 101728372 B1 KR101728372 B1 KR 101728372B1
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- South Korea
- Prior art keywords
- layer
- light emitting
- organic light
- substrate
- silicon
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 26
- 238000004519 manufacturing process Methods 0.000 title abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 239000011368 organic material Substances 0.000 claims abstract description 22
- 238000000151 deposition Methods 0.000 claims abstract description 15
- -1 polyethylene terephthalate Polymers 0.000 claims description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 238000000231 atomic layer deposition Methods 0.000 claims description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 8
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 8
- 239000002041 carbon nanotube Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 8
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 8
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 8
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 8
- 239000004697 Polyetherimide Substances 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 7
- 229920001601 polyetherimide Polymers 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 7
- 239000004642 Polyimide Substances 0.000 claims description 6
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- 239000011521 glass Substances 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- 229920006324 polyoxymethylene Polymers 0.000 claims description 6
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- BIVNKSDKIFWKFA-UHFFFAOYSA-N N-propan-2-yl-N-silylpropan-2-amine Chemical compound CC(C)N([SiH3])C(C)C BIVNKSDKIFWKFA-UHFFFAOYSA-N 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 229920012266 Poly(ether sulfone) PES Polymers 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 229920001940 conductive polymer Polymers 0.000 claims description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229920002492 poly(sulfone) Polymers 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- 229930182556 Polyacetal Natural products 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000002042 Silver nanowire Substances 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000002070 nanowire Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229910052594 sapphire Inorganic materials 0.000 claims description 3
- 239000010980 sapphire Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 claims 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 abstract description 9
- 229910000077 silane Inorganic materials 0.000 abstract description 9
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 62
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- 230000005525 hole transport Effects 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 3
- 229920006380 polyphenylene oxide Polymers 0.000 description 3
- 229960002796 polystyrene sulfonate Drugs 0.000 description 3
- 239000011970 polystyrene sulfonate Substances 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 3
- WMAXWOOEPJQXEB-UHFFFAOYSA-N 2-phenyl-5-(4-phenylphenyl)-1,3,4-oxadiazole Chemical compound C1=CC=CC=C1C1=NN=C(C=2C=CC(=CC=2)C=2C=CC=CC=2)O1 WMAXWOOEPJQXEB-UHFFFAOYSA-N 0.000 description 2
- AWXGSYPUMWKTBR-UHFFFAOYSA-N 4-carbazol-9-yl-n,n-bis(4-carbazol-9-ylphenyl)aniline Chemical compound C12=CC=CC=C2C2=CC=CC=C2N1C1=CC=C(N(C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=C1 AWXGSYPUMWKTBR-UHFFFAOYSA-N 0.000 description 2
- DIVZFUBWFAOMCW-UHFFFAOYSA-N 4-n-(3-methylphenyl)-1-n,1-n-bis[4-(n-(3-methylphenyl)anilino)phenyl]-4-n-phenylbenzene-1,4-diamine Chemical compound CC1=CC=CC(N(C=2C=CC=CC=2)C=2C=CC(=CC=2)N(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=C(C)C=CC=2)C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=C(C)C=CC=2)=C1 DIVZFUBWFAOMCW-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000005046 Chlorosilane Substances 0.000 description 2
- IUMSDRXLFWAGNT-UHFFFAOYSA-N Dodecamethylcyclohexasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 IUMSDRXLFWAGNT-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 101000837344 Homo sapiens T-cell leukemia translocation-altered gene protein Proteins 0.000 description 2
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 102100028692 T-cell leukemia translocation-altered gene protein Human genes 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 2
- 239000002079 double walled nanotube Substances 0.000 description 2
- 239000008393 encapsulating agent Substances 0.000 description 2
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 238000004768 lowest unoccupied molecular orbital Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 2
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
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- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
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- 239000002109 single walled nanotube Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- GKWLILHTTGWKLQ-UHFFFAOYSA-N 2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1CCOC2=CSC=C21 GKWLILHTTGWKLQ-UHFFFAOYSA-N 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- WZUCGJVWOLJJAN-UHFFFAOYSA-N diethylaminosilicon Chemical compound CCN([Si])CC WZUCGJVWOLJJAN-UHFFFAOYSA-N 0.000 description 1
- AWFPGKLDLMAPMK-UHFFFAOYSA-N dimethylaminosilicon Chemical compound CN(C)[Si] AWFPGKLDLMAPMK-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000007737 ion beam deposition Methods 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- IFVRUKGTKXWWQF-UHFFFAOYSA-N methylaminosilicon Chemical compound CN[Si] IFVRUKGTKXWWQF-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000004549 pulsed laser deposition Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02126—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02126—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
- H01L21/0214—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC the material being a silicon oxynitride, e.g. SiON or SiON:H
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
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- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/314—Inorganic layers
- H01L21/3141—Deposition using atomic layer deposition techniques [ALD]
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- H01L2924/12—Passive devices, e.g. 2 terminal devices
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- H01L2924/12044—OLED
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Abstract
본 발명은 유기발광소자 제조방법에 관한 것으로, 기판을 준비하는 단계, 상기 기판 위에 애노드를 증착하는 단계, 상기 애노드 위에 유기물 형성을 위한 패턴을 형성하는 단계, 상기 패턴 위에 유기물 및 캐소드를 증착하는 단계 및 상기 유기물 및 캐소드 위에 실록산, 실라잔 및 실란 중 적어도 하나를 포함하여 형성되는 봉지막을 증착하는 단계를 포함하는 유기발광소자 제조방법을 제공한다.The present invention relates to a method of manufacturing an organic light emitting diode, comprising the steps of preparing a substrate, depositing an anode on the substrate, forming a pattern for forming an organic material on the anode, depositing an organic material and a cathode on the pattern, And depositing a sealing film formed on the organic material and the cathode, the sealing film including at least one of siloxane, silazane, and silane.
Description
본 발명은 유기발광소자의 제조방법에 관한 것으로, 더욱 상세하게는 실록산, 실라잔 또는 실란으로 형성되는 봉지막을 증착하여 수분과 산소가 유기발광소자에 침투하는 것을 방지하기 위한 유기발광소자의 제조방법에 관한 것이다. The present invention relates to a method of manufacturing an organic light emitting device, and more particularly, to a method of manufacturing an organic light emitting device for depositing a sealing film formed of siloxane, silazane, or silane to prevent moisture and oxygen from penetrating into the organic light emitting device .
일반적으로 차세대 평판 디스플레이로 기대되고 있는 유기발광소자는 OLED(Organic Light Emitting Diode 또는 Organic Electroluminescent Display)로도 불리며, 자체 발광 특성과 함께 시야각이 넓고, 고선명, 고화질, 고속 응답성 등의 장점을 갖고 있어 소형 디스플레이어에 많이 적용되고 있다.In general, OLEDs, which are expected to be the next-generation flat panel displays, are also called OLEDs (organic light emitting diodes or organic electroluminescent displays). They have self-luminous characteristics, wide viewing angles, high definition, high image quality, It is widely applied to display language.
유기발광소자는 기판 위에 애노드(anode), 정공 주입층(hole injection layer;HIL), 정공 운송층(hole transfer layer;HTL), 발광층(emitting layer;EML), 정공 차단층(hole blocking layer;HBL), 전자 운송층(electron transport layer;ETL), 캐소드(cathode)가 순서대로 적층되어 형성된다. 애노드로는 면저항이 작고 투과성이 좋은 ITO(Indium Tin Oxide)가 주로 사용되고, 발광층으로 사용되는 유기층질은 Alq3, TPD, PBD, m-MTDATA, TCTA 등이 사용된다. 캐소드로는 주로 Al 금속막이 사용된다.An organic light emitting device includes an anode, a hole injection layer (HIL), a hole transport layer (HTL), an emission layer (EML), a hole blocking layer (HBL) ), An electron transport layer (ETL), and a cathode are stacked in this order. ITO (Indium Tin Oxide), which has small sheet resistance and good transparency, is mainly used for the anode, and Alq3, TPD, PBD, m-MTDATA and TCTA are used for the organic layer used as the light emitting layer. As the cathode, an Al metal film is mainly used.
또한, 유기 박막은 공기 중의 수분과 산소에 매우 약하므로 소자의 수명(life time)을 증가시키기 위해 봉합하는 봉지막이 필요하다. 이 봉합하는 공정 중에 봉지막과 기판을 붙이기 위하여 프릿 글래스(frit glass) 및 여러 종류의 밀봉제(sealant) 등이 쓰이고 있다. 이러한 재료를 스핀코터, 스크린 프린터, 디스펜서를 이용하여 봉지막 위에 도포를 하고 상·하판을 붙이는 과정에 자외선(UV) 혹은 열을 가함으로서 완전한 밀폐효과를 얻어 내고 있다.Further, since the organic thin film is very weak to moisture and oxygen in the air, a sealing film for sealing is required in order to increase the lifetime of the device. During the sealing process, frit glass and various kinds of sealants are used to attach the sealing film and the substrate. This material is coated on the sealing film by using a spin coater, a screen printer and a dispenser, and ultraviolet rays (UV) or heat are applied to the process of attaching the upper and lower plates to obtain a complete sealing effect.
또한 유기 박막 형성 방법에는 진공증착법(Vacuum desposition Method), 스퍼터링(Sputtering)법, 이온빔 증착(Ion-beam Deposition)법, Pulsed-laser 증착법, 분자선 증착법, 화학기상증착법, 스핀코터(spin coater) 등이 있으며, 주로 진공증착법이 많이 사용되고 있다.Methods for forming an organic thin film include a vacuum deposition method, a sputtering method, an ion beam deposition method, a pulsed-laser deposition method, a molecular beam deposition method, a chemical vapor deposition method, a spin coater, And a vacuum deposition method is mainly used.
현재 유기발광소자 제조시 수분 및 산소 등의 외부 불순물이 소자 내부로 침투하여 발광면적의 수축을 방지하기 위해 흡습제(desiccant) 및 캔(can)을 사용하여 외부 침투를 방지하고 있다. 하지만 캔을 사용할 경우 소자의 두께가 두꺼워지고, 원가 측면에서 불리하고, 글라스(Glass)를 접착하기 위해 사용하는 밀봉제(Sealant)로부터 이물질이 발생하여 소자의 유기층에 영향을 주는 문제점이 발생한다.Currently, external impurities such as moisture and oxygen penetrate into the device during manufacturing of the organic light emitting device to prevent external penetration by using a desiccant and a can to shrink the light emitting area. However, when a can is used, the thickness of the device becomes thick, which is disadvantageous in terms of cost, and foreign matter is generated from a sealant used for bonding glass, thereby affecting the organic layer of the device.
따라서 본 발명의 목적은 봉지 공정을 기존의 캔 또는 글라스 대신 박막을 이용하여 제조된 봉지막을 사용하여 종래의 소자보다 얇은 두께를 가지는 유기발광소자 제조방법을 제공하는 데 있다.Accordingly, it is an object of the present invention to provide a method for manufacturing an organic light emitting device having a thinner thickness than a conventional device using a sealing film manufactured using a thin film instead of a conventional can or glass.
본 발명의 다른 목적은 실록산, 실라잔 또는 실란으로 형성되는 봉지막을 증착함으로써 소자 외부로부터 유입되는 수분이나 산소 침투를 억제시켜 소자의 특성을 향상시키는 유기발광소자 제조방법을 제공하는 데 있다.It is another object of the present invention to provide an organic light emitting device manufacturing method for improving the device characteristics by suppressing moisture or oxygen infiltration from the outside of the device by depositing a sealing film formed of siloxane, silazane, or silane.
본 발명에 따른 유기발광소자 제조방법은 기판을 준비하는 단계, 상기 기판 위에 애노드를 증착하는 단계, 상기 애노드 위에 유기물 형성을 위한 패턴을 형성하는 단계, 상기 패턴 위에 유기물 및 캐소드를 증착하는 단계, 상기 유기물 및 캐소드 위에 실록산, 실라잔 및 실란 중 적어도 하나를 포함하여 형성되는 봉지막을 증착하는 단계를 포함한다.A method of manufacturing an organic light emitting diode according to the present invention includes the steps of preparing a substrate, depositing an anode on the substrate, forming a pattern for forming an organic material on the anode, depositing an organic material and a cathode on the pattern, Depositing an encapsulating film formed on the organic material and the cathode, the encapsulating film including at least one of siloxane, silazane, and silane.
본 발명에 따른 유기발광소자 제조방법에 있어서, 상기 봉지막은 실리콘산화막(Silicon oxide layer), 실리콘질화막(Silicon nitride layer), 실리콘산화질화막(Siliconoxynitride layer), 실리콘산화탄질화막(Siliconoxycarbonitride layer), 실리콘탄질화막(Siliconcarbonitride layer) 및 실리콘산화카바이드막(Siliconoxycarbide layer) 중 적어도 하나를 포함하는 것을 특징으로 한다.In the method of manufacturing an organic light emitting diode according to the present invention, the sealing film may be formed of a silicon oxide layer, a silicon nitride layer, a silicon oxynitride layer, a silicon oxycarbonitride layer, A silicon nitride layer and a silicon oxide carbide layer.
본 발명에 따른 유기발광소자 제조방법에 있어서, 상기 봉지막의 소재는 헥사메틸디실록산, 옥타메틸트리실록산, 옥타메틸시클로테트라실록산, 데카메틸시클로트리실록산 및 도데카메틸시클로헥사실록산 중 적어도 하나를 포함하는 것을 특징으로 한다.In the method of manufacturing an organic light emitting device according to the present invention, the material of the sealing film may include at least one of hexamethyldisiloxane, octamethyltrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclotrisiloxane and dodecamethylcyclohexasiloxane .
본 발명에 따른 유기발광소자 제조방법에 있어서, 상기 봉지막의 소재는 클로로시란, 알콜시시란, 알킬, 아릴시란, 디메텔디클로로실란, 메틸트리메톡시실란, 디페닐실렌디올, 테트라메틸시란, 아미노, 니트릴, 옥사라닐, 옥시모, 아세톡시, 비스터셔리부틸아미노실란, 비스디메틸아미노실란, 비스디에틸아미노실란, 디메틸아미노실란, 디에틸아미노실란, 디프로필아미노실란, 부틸아미노실란, 비스에틸메틸아미노실란 및 디이소프로필아미노실란 중 적어도 하나를 포함하는 것을 특징으로 한다.In the method for manufacturing an organic light emitting diode according to the present invention, the material of the sealing film may be selected from the group consisting of chlorosilane, alcohol siloxane, alkyl, arylsilane, dimeteldichlorosilane, methyltrimethoxysilane, diphenylsilylene diol, Are preferably selected from the group consisting of amino, nitrile, oxaranyl, oximo, acetoxy, bistrimeributylaminosilane, bisdimethylaminosilane, bisdiethylaminosilane, dimethylaminosilane, diethylaminosilane, Silane, bisethyl methylaminosilane, and diisopropylaminosilane.
본 발명에 따른 유기발광소자 제조방법에 있어서, 상기 봉지막의 소재는 디이소프로필아미노실란(DIPAS)을 포함하는 것을 특징으로 한다.In the method of manufacturing an organic light emitting diode according to the present invention, the sealing film may include diisopropylaminosilane (DIPAS).
본 발명에 따른 유기발광소자 제조방법에 있어서, 상기 봉지막의 소재는 헥사메틸디실라잔(HMDS), 헥사메틸디실록산(HMDSO) 및 비스에틸메틸아미노실란(BEMAS) 중 적어도 하나를 포함하는 것을 특징으로 한다.In the method of manufacturing an organic light emitting device according to the present invention, it is preferable that the material of the sealing film includes at least one of hexamethyldisilazane (HMDS), hexamethyldisiloxane (HMDSO), and bisethylmethylaminosilane (BEMAS) .
본 발명에 따른 유기발광소자 제조방법에 있어서, 상기 봉지막은 원자층 증착(Atomic layer deposition) 공정으로 형성하는 것을 특징으로 한다.In the method of manufacturing an organic light emitting diode according to the present invention, the sealing film may be formed by an atomic layer deposition process.
본 발명에 따른 유기발광소자 제조방법에 있어서, 상기 원자층 증착 공정으로 사용되는 반응 소스로는 아르곤 플라즈마, 산소 플라즈마, 질소 플라즈마, 오존 플라즈마, 산화질소 플라즈마 및 수소 플라즈마 중 적어도 하나를 포함하는 것을 특징으로 한다.In the method for manufacturing an organic light emitting diode according to the present invention, the reaction source used in the atomic layer deposition process may include at least one of an argon plasma, an oxygen plasma, a nitrogen plasma, an ozone plasma, a nitrogen oxide plasma and a hydrogen plasma .
본 발명에 따른 유기발광소자 제조방법에 있어서, 상기 원자층 증착은 20~200℃에서 진행되는 것을 특징으로 한다.In the method of manufacturing an organic light emitting diode according to the present invention, the atomic layer deposition is performed at 20 to 200 ° C.
본 발명에 따른 유기발광소자 제조방법에 있어서, 상기 원자층 증착은 50~100℃에서 진행되는 것을 특징으로 한다.In the method for manufacturing an organic light emitting diode according to the present invention, the atomic layer deposition is performed at 50 to 100 ° C.
본 발명에 따른 유기발광소자 제조방법에 있어서, 상기 기판은 사파이어 또는 유리인 것을 특징으로 한다.In the method of manufacturing an organic light emitting diode according to the present invention, the substrate may be sapphire or glass.
본 발명에 따른 유기발광소자 제조방법에 있어서, 상기 기판은 폴리에틸렌테레프탈레이트(PET), 폴피프로필렌(PP), 폴리에틸렌(PE), 폴리카보네이트(PC), 폴리에테르설폰(PES), 폴리아세텔(POM), 폴리아미드(PA), 폴리페닐렌옥사이드(PPO), 폴리슐폰(PSF), 폴리에테르이미드(PEI), 폴리페닐렌술포이드(PPS), 폴리에스테르(PEN) 및 폴리이미드(PI) 중 적어도 하나를 포함하는 것을 특징으로 한다.In the method of manufacturing an organic light emitting diode according to the present invention, the substrate may be at least one selected from the group consisting of polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), polycarbonate (PC), polyethersulfone (PES) ), Polyamide (PA), polyphenylene oxide (PPO), polysulfone (PSF), polyetherimide (PEI), polyphenylene sulfide (PPS), polyester (PEN) and polyimide And at least one of them.
본 발명에 따른 유기발광소자 제조방법에 있어서, 상기 애노드는 은나노와이어, 금속나노와이어, 투명 전도성 산화물(TCO), 탄소나노튜브(CNT), 그래핀, 전도성 고분자, 메탈메쉬 및 인듐 주석 산화물(ITO) 중 적어도 하나를 포함하는 것을 특징으로 한다.In the method of manufacturing an organic light emitting diode according to the present invention, the anode may be a metal such as silver nano wire, metal nanowire, transparent conductive oxide (TCO), carbon nanotube (CNT), graphene, conductive polymer, metal mesh, ) Of the at least one light emitting diode.
본 발명에 따른 유기발광소자 제조방법은 실록산, 실라잔 및 실란 중 적어도 하나를 포함하여 형성되는 박막 형태의 봉지막을 사용하여, 제조되는 유기발광소자의 두께를 최소화하면서, 외부로부터 수분과 산소의 침투를 억제하여 소자의 특성을 향상시킬 수 있다.The method for fabricating an organic light emitting device according to the present invention uses a thin film-like sealing film formed of at least one of siloxane, silazane and silane to minimize the thickness of the organic light emitting device, The characteristics of the device can be improved.
또한 본 발명에 따른 유기발광소자 제조방법은 유기물을 봉지막의 소재로 사용하여 플렉시블 기판에 증착시킴으로써 봉지막의 파손을 억제할 수 있다.In addition, the organic light emitting device manufacturing method according to the present invention can suppress the breakage of the sealing film by depositing the organic material on the flexible substrate by using the organic material as the material of the sealing film.
도 1은 본 발명에 따른 유기발광소자 제조방법에 따른 흐름도이다.
도 2 내지 도 4는 도 1의 제조방법에 따른 각 단계를 나타내는 도면들이다.
도 5는 본 발명의 다른 실시예에 따른 유기발광소자를 나타내는 단면도이다.1 is a flowchart illustrating a method of manufacturing an organic light emitting diode according to an embodiment of the present invention.
FIGS. 2 to 4 are views showing respective steps according to the manufacturing method of FIG.
5 is a cross-sectional view illustrating an organic light emitting device according to another embodiment of the present invention.
하기의 설명에서는 본 발명의 실시예를 이해하는데 필요한 부분만이 설명되며, 그 이외 부분의 설명은 본 발명의 요지를 흩트리지 않는 범위에서 생략될 것이라는 것을 유의하여야 한다.In the following description, only parts necessary for understanding embodiments of the present invention will be described, and descriptions of other parts will be omitted to the extent that they do not disturb the gist of the present invention.
이하에서 설명되는 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념으로 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다. 따라서 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 바람직한 실시예에 불과할 뿐이고, 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor is not limited to the meaning of the terms in order to describe his invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely preferred embodiments of the present invention, and are not intended to represent all of the technical ideas of the present invention, so that various equivalents And variations are possible.
이하, 첨부된 도면을 참조하여 본 발명의 실시예를 보다 상세하게 설명하고자 한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 유기발광소자(100) 제조방법에 따른 흐름도이다.1 is a flowchart illustrating a method of manufacturing an organic
도 2 내지 도 4는 도 1의 제조방법에 따른 각 단계를 나타내는 도면이다.FIGS. 2 to 4 are views showing respective steps according to the manufacturing method of FIG.
도 1을 참조하면, 본 발명에 따른 유기발광소자(100)의 제조방법은 기판(10)을 준비하는 단계(S110), 기판(10) 위에 애노드(20)를 증착하는 단계(S120), 애노드 위에 유기물 형성을 위한 패턴을 형성하는 단계(S130), 패턴 위에 유기물 및 캐소드(30)를 증착하는 단계(S140) 및 유기물 및 캐소드(30) 위에 실록산, 실라잔 또는 실란으로 형성되는 봉지막(40)을 증착하는 단계(S150)를 포함한다.Referring to FIG. 1, a method of manufacturing an organic
먼저, 기판(10)을 준비(S110)한다. 기판(10)은 유리 또는 사파이어를 사용할 수 있지만 이에 한정되는 것은 아니다. 예를 들어 투명재질의 소재라면 어떠한 것도 사용이 가능하다.First, the
또한 기판(10)은 폴리에틸렌테레프탈레이트(PET), 폴피프로필렌(PP), 폴리에틸렌(PE), 폴리카보네이트(PC), 폴리에테르설폰(PES), 폴리아세텔(POM), 폴리아미드(PA), 폴리페닐렌옥사이드(PPO), 폴리슐폰(PSF), 폴리에테르이미드(PEI), 폴리페닐렌술포이드(PPS), 폴리에스테르(PEN) 또는 폴리이미드(PI)를 포함할 수 있다. 이러한 기판(10)은 유연성(flexibility)을 갖는 재질을 사용할 수 있다.The
다음으로 도 2를 참조하면, 기판(10) 위에 애노드(20)를 증착(S120)한다.Next, referring to FIG. 2, an
애노드(20)는 발광에 필요한 정공을 생성한다.The
애노드(20)는 은나노와이어, 금속나노와이어, 투명 전도성 산화물(TCO), 탄소나노튜브(CNT), 그래핀, 전도성 고분자, 메탈메쉬 또는 인듐 주석 산화물(ITO)로 형성될 수 있다.The
투명 전도성 산화물(TCO)으로 ZnO(Zinc Oxide), SnO2(Tin Dioxide), TiO2(Titanium Dioxide), GZO(Ga-doped ZnO), AZO(Al-doped ZnO), 산화물-금속-산화물 구조의 다층박막 등을 사용할 수 있고, 인듐 주석 산화물(ITO)을 사용하는 것이 바람직하다.(TCO), SnO 2 (Tin Dioxide), TiO 2 (Titanium Dioxide), GZO (Ga-doped ZnO), AZO (Al-doped ZnO), and oxide-metal-oxide structures as a transparent conductive oxide A multilayer thin film or the like can be used, and indium tin oxide (ITO) is preferably used.
탄소나노튜브(CNT)으로 Single Wall Carbon Nanotubes(SWCNT), Double Wall Carbon Nanotubes(DWCNT) 또는 Muti Wall Carbon Nanotubes(MWCNT)등을 사용할 수 있다.Single wall carbon nanotubes (SWCNT), double wall carbon nanotubes (DWCNT), or muti wall carbon nanotubes (MWCNT) can be used as carbon nanotubes (CNTs).
전도성 고분자로는 PEDOT(Poly 3,4-ethylene-dioxythiophene) : PSS(Polystyrene Sulfonate), DMSO(Dimethyl Sulfoxide), NMP(N-methylpyrrolidone), EG(Ethylene Glycol), MeOH(Methanol), ETOH(Ethanol), IPA(Isoproply Alcohol) 등을 사용할 수 있다.Examples of the conductive polymer include poly 3,4-ethylene-dioxythiophene (PEDOT), polystyrene sulfonate (PSS), dimethyl sulfoxide (DMSO), N-methylpyrrolidone (NMP), ethylene glycol (EG), methanol, , IPA (Isoproply Alcohol) and the like can be used.
다음으로, 애노드(20) 위에 유기물 형성을 위한 패턴을 형성(S130)한다. 패턴은 발광층에서 발생하거나 반사된 빛이 발광할 수 있도록 한다.Next, a pattern for forming an organic material is formed on the anode 20 (S130). The pattern is generated in the light emitting layer or allows the reflected light to emit light.
다음으로 도 3을 참조하면, 패턴 위에 유기물 및 캐소드(30)를 형성한다. 여기서 도 3은 애노드(20) 위에 유기물 및 캐소드(30)를 형성한 단면도이다.Next, referring to FIG. 3, an organic material and a
유기물 및 캐소드(30)는 정공 주입층(hole injection layer;HIL, 30a), 정공 운송층(hole transfer layer;HTL, 30b), 발광층(emitting layer;EML, 30c), 정공 차단층(hole blocking layer;HBL, 30d), 전자 운송층(electron transport layer;ETL, 30e), 전자 주입층(electron injection layer;EIL, 30f), 캐소드(cathode, 30g)를 포함한다.The organic material and the
정공 주입층(30a)은 애노드(20)에서 생성된 정공을 발광층(30c)으로 주입한다. 정공 주입층(30a)은 애노드(20)와 에너지 차이가 작으며 우수한 접착력과 전도율을 가지기 위해 친수성 및 평면성을 가진 소재를 사용한다. 정공 주입층(30a)의 소재로는 CuPc, PEDOT 또는 PSS 등이 사용될 수 있지만 이에 한정되는 것은 아니다.The
정공 운송층(30b)은 정공 주입층(30a) 위에 형성된다.The
정공 운송층(30b)은 정공이 이동하기 쉽고, 전자가 주입되지 않도록 LUMO(Lowest Unoccupied Molecular Orbital)에너지가 낮은 소재를 사용한다. 정공 운송층(30b)의 소재로는 arylamine, TPD 등이 사용될 수 있지만 이에 한정되는 것은 아니다.The
발광층(30c)는 정공 운송층(30b) 위에 형성된다.The
발광층(30c)은 전자와 정공이 결합되어 만들어진 엑시톤(exciton)이 여기상태에서 기저상태로 떨어지면서 에너지를 방출하고 방광이 이루어진다. 전자와 정공이 발광층(30c)으로 주입될 때 전자는 전도대(Conduction band)로, 정공은 전자대(Balance band)로 주입되며, 주입된 전자와 정공이 발광층(30c) 내에서 전자-격자 상호작용(Electron-latticed interaction)으로 각각 음성 및 양성 폴라론(Polaron)을 생성한다. 생성된 플라론이 발광체 내의 어느 한 부분에서 만나 재결합하여 일증항 플라론 여기자(Singlet polaron excition)를 형성하게 된다. 여기자가 발광소멸하게 되면 폴라론과 엑시톤의 에너지 갭에 해당하는 빛이 생성된다. 발광층(30c)의 소재로는 Alq3, TPD, PBD, m-MTDATA, TCTA 등이 사용될 수 있지만 이에 한정되는 것은 아니다.In the
전자 운송층(30d)는 발광층(30c) 위에 형성된다.The
전자 운송층(30d)은 전자를 발광층(30c)으로 운송한다. 전자 운송층(30d)은 불안정한 음이온 라디칼(radical anion)을 안정화 시켜준다. 전자 운송층(30d)의 소재로는 Alq3 또는 벤즈아졸 등을 사용하지만 이에 한정되는 것은 아니다.The
전자 주입층(30e)은 전자 운송층(30d) 위에 형성된다. The
전자 주입층(30e)은 전자를 발광층(30c)으로 주입한다. 전자 주입층(30e)의 소재로는 Li 등의 알칼리 금속이나 그 착제, Ba, Ca 등을 사용하지만 이에 한정되는 것은 아니다.The
캐소드(30f)는 전자 주입층(30e) 위에 형성된다.The
캐소드(30f)는 전자를 생성하고, 생성된 전자는 전자 주입층(30e)을 통해 발광층(30c)으로 이동한다. 캐소드의 소재로는 주로 금속재질을 사용하고 바람직하게는 알루미늄을 사용한다. 하지만 이에 한정되는 것은 아니다.The
그리고 도 4를 참조하면 봉지막(40)을 유기물 및 캐소드(30) 위에 증착(S150)한다. 여기서 도 4는 유기물 및 캐소드(30) 위에 봉지막(40)을 증착한 단면도이다.Referring to FIG. 4, the sealing
봉지막(40)은 산소와 수분에 쉽게 산화되는 유기발광소자(100)의 유기물 및 캐소드(30)를 외부로부터의 산소나 수분의 침투를 차단시킨다.The sealing
봉지막(40)은 실리콘산화막(Silicon oxide layer), 실리콘질화막(Silicon nitride layer), 실리콘산화질화막(Siliconoxynitride layer), 실리콘산화탄질화막(Siliconoxycarbonitride layer), 실리콘탄질화막(Siliconcarbonitride layer) 및 실리콘산화카바이드막(Siliconoxycarbide layer) 중 어느 하나를 포함할 수 있다.The sealing
예컨데 봉지막(40)은 실리콘옥사이드, 실리콘나이트라이드, 실리콘옥시나이트라이드, 실리콘옥시카르보나이트라이드 및 실리콘카보나이트라이드 중 어느 하나를 포함할 수 있다.For example, the
봉지막(40)은 실록산, 실라잔 또는 실란으로 유기물 및 캐소드(30) 위에 증착할 수 있다.The
봉지막(40)의 소재로는 헥사메틸디실록산, 옥타메틸트리실록산, 옥타메틸시클로테트라실록산, 데카메틸시클로트리실록산 또는 도데카메틸시클로헥사실록산 등을 사용할 수 있으며 이에 한정되는 것은 아니다.As the material of the sealing
봉지막(40)의 소재로는 클로로시란, 알콜시시란, 알킬, 아릴시란, 디메텔디클로로실란, 메틸트리메톡시실란, 디페닐실렌디올, 테트라메틸시란, 아미노, 니트릴, 옥사라닐, 옥시모, 아세톡시, 비스터셔리부틸아미노실란, 비스디메틸아미노실란, 비스디에틸아미노실란, 디메틸아미노실란, 디에틸아미노실란, 디프로필아미노실란, 부틸아미노실란, 비스에틸메틸아미노실란 또는 디이소프로필아미노실란 등을 사용할 수 있으며 이에 한정되는 것은 아니다. 바람직하게는 디이소프로필아미노실란(DIPAS)를 사용할 수 있다. 또한 봉지막(40)의 소재로 헥사메틸디실라잔(HMDS), 헥사메틸디실록산(HMDSO) 또는 비스에틸메틸아미노실란(BEMAS)를 사용할 수 있다.Examples of the material of the sealing
봉지막(40)은 원자층 증착(Atomic layer deposition) 공정으로 형성할 수 있다. 원자층 증착은 20~200℃에서 진행될 수 있으며, 바람직하게는 50~100℃가 적합하다.The sealing
원자층 증착 공정에 사용되는 반응 소스로는 아르곤, 산소, 질소, 암모니아, 물(H2O) 또는 산소를 포함하는 가스일 수 있다. 또한 원자층 증착 공정에 사용되는 반응 소스로 아르곤 플라즈마, 산소 플라즈마, 질소 플라즈마, 오존 플라즈마, 산화질소 플라즈마, 또는 수소 플라즈마를 포함할 수 있다.The reaction source used in the atomic layer deposition process may be a gas containing argon, oxygen, nitrogen, ammonia, water (H 2 O), or oxygen. The reaction source used in the atomic layer deposition process may also include an argon plasma, an oxygen plasma, a nitrogen plasma, an ozone plasma, a nitrogen oxide plasma, or a hydrogen plasma.
도 5는 본 발명의 다른 실시예에 따른 유기발광소자(110)를 나타내는 단면도이다.5 is a cross-sectional view illustrating an organic
도 5를 참조하면, 본 발명의 다른 실시예에 따른 유기발광소자(110) 제조 방법으로는, 본 발명의 실시예와 동일한 조건으로 구성되되, 기판(10)으로 폴리에틸렌테레프탈레이트(PET), 폴피프로필렌(PP), 폴리에틸렌(PE), 폴리카보네이트(PC), 폴리에테르설폰(PES), 폴리아세텔(POM), 폴리아미드(PA), 폴리페닐렌옥사이드(PPO), 폴리슐폰(PSF), 폴리에테르이미드(PEI), 폴리페닐렌술포이드(PPS), 폴리에스테르(PEN) 또는 폴리이미드(PI)를 포함하는 유연성(flexibility)을 갖는 소재를 사용한다. 그리고 기판(10)위에 차단층(50)을 증착한다. 차단층(50)은 봉지막(40)과 동일한 소재와 동일한 방법으로 증착한다.Referring to FIG. 5, a method of manufacturing an organic
한편, 본 명세서와 도면에 개시된 실시예들은 이해를 돕기 위해 특정 예를 제시한 것에 지나지 않으며, 본 발명의 범위를 한정하고자 하는 것은 아니다. 여기에 개시된 실시예들 이외에도 본 발명의 기술적 사상에 바탕을 둔 다른 변형예들이 실시 가능하다는 것은, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게는 자명한 것이다.It should be noted that the embodiments disclosed in the present specification and drawings are only illustrative of specific examples for the purpose of understanding, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.
10 : 기판 20 : 애노드
30 : 유기물 및 캐소드 30a : 정공 주입층
30b : 정공 운송층 30c : 발광층
30d : 전자 운송층 30e : 전자 주입층
30f : 캐소드 40 : 봉지막
50 : 차단층 100, 110 : 유기발광소자10: substrate 20: anode
30: Organic material and
30b:
30d:
30f: cathode 40: sealing film
50: blocking
Claims (13)
상기 기판 위에 애노드를 증착하는 단계;
상기 애노드 위에 유기물 형성을 위한 패턴을 형성하는 단계;
상기 패턴 위에 유기물 및 캐소드를 증착하는 단계;
상기 유기물 및 캐소드 위에 디이소프로필아미노실란(DIPAS)을 소재로 50~100℃에서 산소 플라즈마 또는 질소 플라즈마를 반응 소스로 하여 원자층 증착(Atomic layer deposition) 공정으로 형성되는 봉지막을 증착하는 단계;
를 포함하는 것을 특징으로 하는 유기발광소자 제조방법.Preparing a substrate;
Depositing an anode on the substrate;
Forming a pattern for organic material formation on the anode;
Depositing an organic material and a cathode on the pattern;
Depositing a sealing film formed on the organic material and the cathode by an atomic layer deposition process using diisopropylaminosilane (DIPAS) as a reaction source at 50 to 100 ° C using an oxygen plasma or a nitrogen plasma as a reaction source;
Wherein the organic light emitting layer is formed on the substrate.
상기 봉지막은 실리콘산화막(Silicon oxide layer), 실리콘질화막(Silicon nitride layer), 실리콘산화질화막(Siliconoxynitride layer), 실리콘산화탄질화막(Siliconoxycarbonitride layer), 실리콘탄질화막(Siliconcarbonitride layer) 및 실리콘산화카바이드막(Siliconoxycarbide layer) 중 적어도 하나를 포함하는 것을 특징으로 하는 유기발광소자 제조방법.The method according to claim 1,
The encapsulation layer may be formed of a silicon oxide layer, a silicon nitride layer, a silicon oxynitride layer, a silicon oxycarbonitride layer, a silicon carbonitride layer and a silicon oxycarbide wherein the organic light emitting layer comprises at least one layer selected from the group consisting of silicon nitride, silicon nitride, and silicon nitride.
상기 원자층 증착 공정으로 사용되는 반응 소스로는 아르곤 플라즈마, 오존 플라즈마, 산화질소 플라즈마 및 수소 플라즈마 중 적어도 하나를 더 포함하는 것을 특징으로 하는 유기발광소자 제조방법.The method according to claim 1,
Wherein the reaction source used in the atomic layer deposition process further includes at least one of an argon plasma, an ozone plasma, a nitrogen oxide plasma, and a hydrogen plasma.
상기 기판은 사파이어 또는 유리인 것을 특징으로 하는 유기발광소자 제조방법.The method according to claim 1,
Wherein the substrate is sapphire or glass.
상기 기판은 폴리에틸렌테레프탈레이트(PET), 폴피프로필렌(PP), 폴리에틸렌(PE), 폴리카보네이트(PC), 폴리에테르설폰(PES), 폴리아세텔(POM), 폴리아미드(PA), 폴리페닐렌옥사이드(PPO), 폴리슐폰(PSF), 폴리에테르이미드(PEI), 폴리페닐렌술포이드(PPS), 폴리에스테르(PEN) 및 폴리이미드(PI) 중 적어도 하나를 포함하는 것을 특징으로 하는 유기발광소자 제조방법.The method according to claim 1,
The substrate may be at least one selected from the group consisting of polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), polycarbonate (PC), polyethersulfone (PES), polyacetal (POM), polyamide Wherein the organic light emitting device comprises at least one of polypropylene (PPO), polysulfone (PSF), polyetherimide (PEI), polyphenylene sulfide (PPS), polyester (PEN) and polyimide Gt;
상기 애노드는 은나노와이어, 금속나노와이어, 투명 전도성 산화물(TCO), 탄소나노튜브(CNT), 그래핀, 전도성 고분자, 메탈메쉬 및 인듐 주석 산화물(ITO) 중 적어도 하나를 포함하는 것을 특징으로 하는 유기발광소자 제조방법.The method according to claim 1,
Characterized in that the anode comprises at least one of silver nanowire, metal nanowire, transparent conductive oxide (TCO), carbon nanotube (CNT), graphene, conductive polymer, metal mesh and indium tin oxide (ITO) Gt;
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