JP5120887B2 - 有機発光素子 - Google Patents
有機発光素子 Download PDFInfo
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- JP5120887B2 JP5120887B2 JP2008126333A JP2008126333A JP5120887B2 JP 5120887 B2 JP5120887 B2 JP 5120887B2 JP 2008126333 A JP2008126333 A JP 2008126333A JP 2008126333 A JP2008126333 A JP 2008126333A JP 5120887 B2 JP5120887 B2 JP 5120887B2
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- light emitting
- organic light
- group
- material forming
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- 239000010410 layer Substances 0.000 claims description 250
- 238000002347 injection Methods 0.000 claims description 77
- 239000007924 injection Substances 0.000 claims description 77
- 239000000463 material Substances 0.000 claims description 71
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- 230000005525 hole transport Effects 0.000 claims description 21
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- 239000000758 substrate Substances 0.000 claims description 18
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- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 229920000767 polyaniline Polymers 0.000 claims description 8
- 239000012044 organic layer Substances 0.000 claims description 6
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- MAGFQRLKWCCTQJ-UHFFFAOYSA-M 4-ethenylbenzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=C(C=C)C=C1 MAGFQRLKWCCTQJ-UHFFFAOYSA-M 0.000 claims description 3
- 125000002178 anthracenyl group Chemical group C1(=CC=CC2=CC3=CC=CC=C3C=C12)* 0.000 claims description 3
- 125000001624 naphthyl group Chemical group 0.000 claims description 3
- MIOPJNTWMNEORI-GMSGAONNSA-N (S)-camphorsulfonic acid Chemical compound C1C[C@@]2(CS(O)(=O)=O)C(=O)C[C@@H]1C2(C)C MIOPJNTWMNEORI-GMSGAONNSA-N 0.000 claims description 2
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 claims 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 claims 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 claims description 2
- 101000837344 Homo sapiens T-cell leukemia translocation-altered gene protein Proteins 0.000 claims description 2
- 102100028692 T-cell leukemia translocation-altered gene protein Human genes 0.000 claims description 2
- MIOPJNTWMNEORI-UHFFFAOYSA-N camphorsulfonic acid Chemical compound C1CC2(CS(O)(=O)=O)C(=O)CC1C2(C)C MIOPJNTWMNEORI-UHFFFAOYSA-N 0.000 claims description 2
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 claims description 2
- 238000004770 highest occupied molecular orbital Methods 0.000 claims 9
- BTEAMLUWLVUBFF-UHFFFAOYSA-N 5-(3-methylphenyl)-4-phenylcyclohexa-2,4-diene-1,1-diamine Chemical compound CC=1C=C(C=CC1)C1=C(C=CC(C1)(N)N)C1=CC=CC=C1 BTEAMLUWLVUBFF-UHFFFAOYSA-N 0.000 claims 1
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- IBHBKWKFFTZAHE-UHFFFAOYSA-N n-[4-[4-(n-naphthalen-1-ylanilino)phenyl]phenyl]-n-phenylnaphthalen-1-amine Chemical group C1=CC=CC=C1N(C=1C2=CC=CC=C2C=CC=1)C1=CC=C(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C3=CC=CC=C3C=CC=2)C=C1 IBHBKWKFFTZAHE-UHFFFAOYSA-N 0.000 description 3
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- 125000006736 (C6-C20) aryl group Chemical group 0.000 description 2
- VFUDMQLBKNMONU-UHFFFAOYSA-N 9-[4-(4-carbazol-9-ylphenyl)phenyl]carbazole Chemical compound C12=CC=CC=C2C2=CC=CC=C2N1C1=CC=C(C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=C1 VFUDMQLBKNMONU-UHFFFAOYSA-N 0.000 description 2
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- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
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- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 125000000027 (C1-C10) alkoxy group Chemical group 0.000 description 1
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 description 1
- FMOZIATXSMLFJS-UHFFFAOYSA-N 1-[2-cyclohexyloxy-4-ethoxy-5-(2-methoxyphenoxy)-3-phenoxy-6-propan-2-yloxyphenoxy]naphthalene Chemical group COC1=C(C=CC=C1)OC1=C(C(=C(C(=C1OCC)OC1=CC=CC=C1)OC1CCCCC1)OC1=CC=CC2=CC=CC=C12)OC(C)C FMOZIATXSMLFJS-UHFFFAOYSA-N 0.000 description 1
- OGNSDRMLWYNUED-UHFFFAOYSA-N 1-cyclohexyl-4-[4-[4-(4-cyclohexylcyclohexyl)cyclohexyl]cyclohexyl]cyclohexane Chemical group C1CCCCC1C1CCC(C2CCC(CC2)C2CCC(CC2)C2CCC(CC2)C2CCCCC2)CC1 OGNSDRMLWYNUED-UHFFFAOYSA-N 0.000 description 1
- MCZUXEWWARACSP-UHFFFAOYSA-N 1-ethynylnaphthalene Chemical group C1=CC=C2C(C#C)=CC=CC2=C1 MCZUXEWWARACSP-UHFFFAOYSA-N 0.000 description 1
- 125000001637 1-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C(*)=C([H])C([H])=C([H])C2=C1[H] 0.000 description 1
- LPCWDYWZIWDTCV-UHFFFAOYSA-N 1-phenylisoquinoline Chemical compound C1=CC=CC=C1C1=NC=CC2=CC=CC=C12 LPCWDYWZIWDTCV-UHFFFAOYSA-N 0.000 description 1
- KETXQNLMOUVTQB-UHFFFAOYSA-N 2,3,7,8,12,13,17,18-octaethylporphyrin;platinum Chemical compound [Pt].C=1C(C(=C2CC)CC)=NC2=CC(C(=C2CC)CC)=NC2=CC(C(=C2CC)CC)=NC2=CC2=NC=1C(CC)=C2CC KETXQNLMOUVTQB-UHFFFAOYSA-N 0.000 description 1
- 125000004198 2-fluorophenyl group Chemical group [H]C1=C([H])C(F)=C(*)C([H])=C1[H] 0.000 description 1
- NSMJMUQZRGZMQC-UHFFFAOYSA-N 2-naphthalen-1-yl-1H-imidazo[4,5-f][1,10]phenanthroline Chemical compound C12=CC=CN=C2C2=NC=CC=C2C2=C1NC(C=1C3=CC=CC=C3C=CC=1)=N2 NSMJMUQZRGZMQC-UHFFFAOYSA-N 0.000 description 1
- WLPATYNQCGVFFH-UHFFFAOYSA-N 2-phenylbenzonitrile Chemical group N#CC1=CC=CC=C1C1=CC=CC=C1 WLPATYNQCGVFFH-UHFFFAOYSA-N 0.000 description 1
- PPWNCLVNXGCGAF-UHFFFAOYSA-N 3,3-dimethylbut-1-yne Chemical group CC(C)(C)C#C PPWNCLVNXGCGAF-UHFFFAOYSA-N 0.000 description 1
- 125000004180 3-fluorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C(F)=C1[H] 0.000 description 1
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- OGGKVJMNFFSDEV-UHFFFAOYSA-N 3-methyl-n-[4-[4-(n-(3-methylphenyl)anilino)phenyl]phenyl]-n-phenylaniline Chemical compound CC1=CC=CC(N(C=2C=CC=CC=2)C=2C=CC(=CC=2)C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=C(C)C=CC=2)=C1 OGGKVJMNFFSDEV-UHFFFAOYSA-N 0.000 description 1
- MAGFQRLKWCCTQJ-UHFFFAOYSA-N 4-ethenylbenzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=C(C=C)C=C1 MAGFQRLKWCCTQJ-UHFFFAOYSA-N 0.000 description 1
- 125000001255 4-fluorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1F 0.000 description 1
- VIJYEGDOKCKUOL-UHFFFAOYSA-N 9-phenylcarbazole Chemical compound C1=CC=CC=C1N1C2=CC=CC=C2C2=CC=CC=C21 VIJYEGDOKCKUOL-UHFFFAOYSA-N 0.000 description 1
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- 125000006374 C2-C10 alkenyl group Chemical group 0.000 description 1
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- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000284156 Clerodendrum quadriloculare Species 0.000 description 1
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
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- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 125000006413 ring segment Chemical group 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- SNOOUWRIMMFWNE-UHFFFAOYSA-M sodium;6-[(3,4,5-trimethoxybenzoyl)amino]hexanoate Chemical compound [Na+].COC1=CC(C(=O)NCCCCCC([O-])=O)=CC(OC)=C1OC SNOOUWRIMMFWNE-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000003831 tetrazolyl group Chemical group 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 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 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 125000005580 triphenylene group Chemical group 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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Description
アノードは、コーニング15Ω/cm2(1200Å)ITOガラス基板を50mm×50mm×0.7mmサイズに切って、イソプロピルアルコールと純水とを利用して各5分間超音波洗浄した後、使用した。前記ITOガラス基板に30分間紫外線を照射してオゾンに露出させて洗浄した後、真空蒸着装置に前記ガラス基板を設置した。
第1補助層の形成時、出光社製のIDE406の代わりに、Merck社製のHTM016を利用した点を除いては、前記実施例1と同じ方法を利用して有機発光素子を製作した。
第1補助層の形成時、出光社製造のIDE406の代わりに、電子注入層形成材料と同じLHT−001を利用したという点を除いては、前記実施例1と同じ方法を利用して有機発光素子を製作した。
前記実施例1及び2と比較例1の有機発光素子の駆動電圧、電流密度、輝度、電流効率、電力及び色座標をPR650(Spectroscan spectrometer、PHOTO RESEARCH INC.社製品)を利用して評価して、その結果を下記の表1に表した。一方、実施例1の有機発光素子及び比較例1の有機発光素子の加速寿命(5倍)データは図2に示し、電流効率データは図3にそれぞれ示した。また、実施例2の有機発光素子及び比較例1の有機発光素子の加速寿命(5倍)データは図4に示し、電流効率データは図5にそれぞれ示した。
アノードは、コーニング15Ω/cm2(1200Å)ITOガラス基板を50mm×50mm×0.7mmサイズに切って、イソプロピルアルコールと純水を利用して各5分間超音波洗浄してから使用した。前記ITOガラス基板に30分間紫外線を照射してオゾンに露出させて洗浄した後、真空蒸着装置に前記ガラス基板を設置した。
第2補助層の形成時、出光社製のIDE406の代わりに、Merck社製のHTM016を利用した点を除いては、前記実施例3と同じ方法を利用して有機発光素子を製作した。
第2補助層の形成時、出光社製のIDE406の代わりに、ELM社製のELM307を利用した点を除いては、前記実施例3と同じ方法を利用して有機発光素子を製作した。
第2補助層の形成時、出光社製のIDE406の代わりに、電子注入層形成材料と同じLHT−001を利用したという点を除いては、前記実施例3と同じ方法を利用して有機発光素子を製作した。
前記実施例3、4及び5と比較例2の有機発光素子の駆動電圧、電流密度、輝度、電流効率、電力及び色座標をPR650(Spectroscan spectrometer、PHOTO RESEARCH INC.社製品)を利用して評価して、その結果を下記の表2に表した。一方、実施例3の有機発光素子及び比較例2の有機発光素子の加速寿命(5倍)データは図6に示し、電流効率データは図7にそれぞれ示した。また、実施例4及び5の有機発光素子と比較例2の有機発光素子との電流効率データは、図8にそれぞれ示した。
12 第1電極
16 正孔注入層
18R 第1補助層
18G 第2補助層
20 正孔輸送層
22R 赤色発光層
22G 緑色発光層
22B 青色発光層
24 電子輸送層
26 電子注入層
28 第2電極
Claims (14)
- 基板と、
第1電極と、
第2電極と、
前記第1電極と前記第2電極との間に備えられて正孔注入層及び発光層を含む有機層と、を備え、
前記発光層は赤色発光層、緑色発光層及び青色発光層を備え、
(a)前記正孔注入層と前記赤色発光層との間に備えられ、赤色光の共振周期を調節するための第1補助層及び(b)前記正孔注入層と前記緑色発光層との間に備えられ、緑色光の共振周期を調節するための第2補助層のうち一つ以上を備え、
前記第1補助層をなす物質及び前記第2補助層をなす物質の正孔移動度がNPB正孔移動度の1.5倍ないし2倍であり、
前記第1補助層をなす物質が前記正孔注入層をなす物質と異なり、前記第2補助層をなす物質が前記正孔注入層をなす物質と異なり、前記正孔注入層をなす物質のHOMOエネルギーレベルが−4.5eVないし−5.5eVであり、
前記第1補助層及び第2補助層をなす物質が、下記化学式1を有し、
R 1 ないしR 12 は、互いに独立して、水素、フェニル基、(N,N−ジフェニル)アミノフェニル基、ナフチル基、アントラセニル基またはN−フェニルカルバゾリル基であるが、
但し、前記第1補助層及び第2補助層をなす物質から、NPB及びTPD(N,N−ジフェニル−N,N−ビス(3−メチルフェニル)−1,1−ビフェニル−4,4−ジアミン)は除くことを特徴とする有機発光素子。 - 前記正孔注入層の厚さは10nmないし200nmであることを特徴とする請求項1または2に記載の有機発光素子。
- 前記第1補助層をなす物質のHOMOエネルギーレベルが、前記正孔注入層をなす物質のHOMOエネルギーレベルの±0.5eV範囲内に属することを特徴とする請求項1から3の何れか一項に記載の有機発光素子。
- 前記第1補助層をなす物質のHOMOエネルギーレベルが、前記正孔注入層をなす物質のHOMOエネルギーレベルの±0.3eV範囲内に属することを特徴とする請求項1から4の何れか一項に記載の有機発光素子。
- 前記第1補助層の厚さは60nmないし100nmであることを特徴とする請求項1から5の何れか一項に記載の有機発光素子。
- 前記第2補助層をなす物質のHOMOエネルギーレベルが、前記正孔注入層をなす物質のHOMOエネルギーレベルの±0.5eV範囲内に属することを特徴とする請求項1から6の何れか一項に記載の有機発光素子。
- 前記第2補助層をなす物質のHOMOエネルギーレベルが、前記正孔注入層をなす物質のHOMOエネルギーレベルの±0.3eV範囲内に属することを特徴とする請求項1から7の何れか一項に記載の有機発光素子。
- 前記第2補助層の厚さが20nmないし60nmであることを特徴とする請求項1から8の何れか一項に記載の有機発光素子。
- 前記第1補助層をなす物質と前記第2補助層をなす物質とが同じであることを特徴とする請求項1から9の何れか一項に記載の有機発光素子。
- 前記赤色発光層と前記第1補助層との間に正孔輸送層をさらに備えたことを特徴とする請求項1から8及び10の何れか一項に記載の有機発光素子。
- 前記緑色発光層と前記第2補助層との間に正孔輸送層をさらに備えたことを特徴とする請求項1から8及び11の何れか一項に記載の有機発光素子。
- 前記有機層は、電子阻止層、正孔阻止層、電子輸送層及び電子注入層からなる群から選択された一つ以上の層をさらに備えたことを特徴とする請求項1から8及び12の何れか一項に記載の有機発光素子。
- 前記有機発光素子の作動時、前記第1電極と前記第2電極との間に共振現象が起きることを特徴とする請求項1から8及び13の何れか一項に記載の有機発光素子。
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KR100938898B1 (ko) * | 2008-04-17 | 2010-01-27 | 삼성모바일디스플레이주식회사 | 풀칼라 유기전계발광표시장치 및 그의 제조방법 |
JP2010114425A (ja) * | 2008-10-10 | 2010-05-20 | Canon Inc | 有機el表示装置 |
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JP5515661B2 (ja) | 2009-11-16 | 2014-06-11 | ソニー株式会社 | 有機el表示装置の製造方法 |
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CN101308863B (zh) | 2012-05-23 |
KR100829761B1 (ko) | 2008-05-15 |
JP2008288201A (ja) | 2008-11-27 |
US20080284324A1 (en) | 2008-11-20 |
CN101308863A (zh) | 2008-11-19 |
EP1993139A3 (en) | 2009-04-01 |
US8053975B2 (en) | 2011-11-08 |
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