JP2019501986A - 熱活性化遅延蛍光材料及び有機電界発光素子におけるその応用 - Google Patents
熱活性化遅延蛍光材料及び有機電界発光素子におけるその応用 Download PDFInfo
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- JP2019501986A JP2019501986A JP2018524282A JP2018524282A JP2019501986A JP 2019501986 A JP2019501986 A JP 2019501986A JP 2018524282 A JP2018524282 A JP 2018524282A JP 2018524282 A JP2018524282 A JP 2018524282A JP 2019501986 A JP2019501986 A JP 2019501986A
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/56—Ring systems containing three or more rings
- C07D209/80—[b, c]- or [b, d]-condensed
- C07D209/82—Carbazoles; Hydrogenated carbazoles
- C07D209/88—Carbazoles; Hydrogenated carbazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C255/58—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing cyano groups and singly-bound nitrogen atoms, not being further bound to other hetero atoms, bound to the carbon skeleton
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
- C07D241/36—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems
- C07D241/38—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
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- C—CHEMISTRY; METALLURGY
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
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- C07D241/38—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
- C07D241/46—Phenazines
- C07D241/48—Phenazines with hydrocarbon radicals, substituted by nitrogen atoms, directly attached to the ring nitrogen atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/14—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom
- C07D251/24—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to three ring carbon atoms
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- C07D265/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom and one oxygen atom as the only ring hetero atoms
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- C07D265/34—1,4-Oxazines; Hydrogenated 1,4-oxazines condensed with carbocyclic rings
- C07D265/38—[b, e]-condensed with two six-membered rings
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- C07D279/22—[b, e]-condensed with two six-membered rings with carbon atoms directly attached to the ring nitrogen atom
- C07D279/24—[b, e]-condensed with two six-membered rings with carbon atoms directly attached to the ring nitrogen atom with hydrocarbon radicals, substituted by amino radicals, attached to the ring nitrogen atom
- C07D279/28—[b, e]-condensed with two six-membered rings with carbon atoms directly attached to the ring nitrogen atom with hydrocarbon radicals, substituted by amino radicals, attached to the ring nitrogen atom with other substituents attached to the ring system
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- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/10—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing aromatic rings
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Abstract
Description
Ar1は、C1−6のアルキル基、メトキシ基、エトキシ基、又はフェニル基のうち少なくとも1種により置換されたフェニル基から選択され、
Ar2及びAr3は、下記の基から選択され、
構造式(1−1)、
構造式(1−2)、
構造式(1−3)、
構造式(1−4)、
構造式(1−5)、
構造式(2−1)、
構造式(2−2)、
構造式(2−3)、
構造式(2−4)、
構造式(2−5)、
構造式(2−6)、
構造式(2−7)、
構造式(2−8)、
構造式(2−9)。
Ar1は、C1−6のアルキル基、メトキシ基、エトキシ基、又はフェニル基のうち少なくとも1種により置換されたフェニル基から選択され、
Ar2及びAr3は、下記の基から選択され、
元素分析から得られた各元素の構成比率:C:62.36、H:2.62、N:9.09、Br:25.93。
元素分析から得られた各元素の構成比率:C:54.70、H:2.42、N:5.80、S:10.62、Br:26.46。
元素分析から得られた各元素の構成比率:C:57.77、H:2.56、N:6.12、O:5.60、Br:27.95。
元素分析から得られた各元素の構成比率:C:58.14、H:3.03、N:7.72、I:31.11。
元素分析から得られた各元素の構成比率:C:55.78、H:2.68、N:6.20、Br:35.34。
元素分析から得られた各元素の構成比率:C:56.58、H:2.64、N:7.33、Br:33.46。
元素分析から得られた各元素の構成比率:C:76.34、H:3.82、N:10.93、Br:8.91。
元素分析から得られた各元素の構成比率:C:60.62、H:3.05、N:7.86、I:28.47。
元素分析から得られた各元素の構成比率:C:52.08、H:2.91、N:6.39、I:38.61。
元素分析から得られた各元素の構成比率:C:54.74、H:2.55、N:7.09、O:3.24、Br:32.37。
元素分析から得られた各元素の構成比率:C:45.99、H:2.14、N:5.96、O:2.72、I:43.19。
元素分析から得られた各元素の構成比率:C:64.93、H:3.21、N:9.71、Br:22.15。
元素分析から得られた各元素の構成比率:C:57.44、H:2.84、N:8.59、I:31.13。
元素分析から得られた各元素の構成比率:C:58.53、H:2.77、N:8.75、Br:29.95。
本比較例は、陽極02としてITO(酸化インジウムスズ)、正孔注入層04としてNPB、正孔輸送層05としてTCTA、発光層06のホスト材料としてCBP、発光色素としてDSA−Ph(発光層にドープされた質量比率は5wt%)、電子輸送層07としてBphen、陰極03としてLiF(5nm)/Alを用いる。すなわち、その構造は、ITO/NPB(40nm)/TCTA(10nm)/CBP:5wt%DSA−Ph(30nm)/Bphen(40nm)/LiF(5nm)/Alである。
本比較例の構造は、発光層の発光色素として2CzPNを用いる以外、比較例1と同じである。すなわち、その構造は、ITO/NPB(40nm)/TCTA(10nm)/CBP:5wt%2CzPN(30nm)/Bphen(40nm)/LiF(5nm)/Alである。
本実施例の構造は、発光層の発光色素として下記の構造式(1−1)の化合物を用いる以外、比較例1と同じである。
実施例2〜5の構造は、発光層の発光色素としての化合物1−1のドープ濃度が異なる以外、実施例1と同じである。その構造は、ITO/NPB(40nm)/TCTA(10nm)/CBP:0.5〜10wt%化合物1−1(30nm)/Bphen(40nm)/LiF(5nm)/Alである。
本実施例のOLED構造は、発光層に発光色素として一般式I、又は一般式IIに示す構造を有する異なる化合物をドープする以外、実施例1と同じである。その構造は、ITO/NPB(40nm)/TCTA(10nm)/CBP:5wt%(一般式I、又は一般式IIに示す構造を有する化合物)(30nm)/Bphen(40nm)/LiF(5nm)/Alである。
本実施例のLED構造は、発光層のホスト材料として下記の構造式(2−2)の化合物、発光色素としてIr(ppy)3を用いる以外、実施例1と同じである。Ir(ppy)3のドープ濃度(発光層に占める重量比率)は1〜10wt%である。その構造は、ITO/NPB(40nm)/TCTA(10nm)/化合物2−2:1〜10wt%Ir(ppy)3(30nm)/Bphen(40nm)/LiF(5nm)/Alである。
本比較例の構造は、発光層のホスト材料としてCBPを用いる以外、実施例7〜9と同じである。その構造は、ITO/NPB(40nm)/TCTA(10nm)/CBP:5wt%Ir(ppy)3(30nm)/Bphen(40nm)/LiF(5nm)/Alである。
Claims (10)
- 前記熱活性化遅延蛍光材料を有機電界発光素子の発光層のホスト材料、又は発光色素として用いる
請求項1または2に記載の熱活性化遅延蛍光材料の応用。 - 前記発光層は、ホスト材料及びホスト材料にドープされた発光色素を含み、前記発光色素は、請求項1または2に記載の熱活性化遅延蛍光材料である
ことを特徴とする有機電界発光素子。 - 前記発光色素の発光層に占める比率は、0.5wt%−10wt%である
請求項4に記載の有機電界発光素子。 - 前記発光色素の発光層に占める比率は、5wt%である
請求項5に記載の有機電界発光素子。 - 蒸着により基板に順に積層された陽極と、正孔輸送層と、発光層と、電子輸送層と、陰極とを含む
請求項4に記載の有機電界発光素子。 - 前記陽極と前記正孔輸送層の間に正孔注入層がさらに設けられる
請求項7に記載の有機電界発光素子。 - 発光層を含む有機電界発光素子であって、
前記発光層は、ホスト材料及びホスト材料にドープされた発光色素を含み、前記ホスト材料は、請求項1または2に記載の熱活性化遅延蛍光材料である
ことを特徴とする有機電界発光素子。 - 前記発光色素の発光層に占める比率は、1wt%−10wt%である
請求項9に記載の有機電界発光素子。
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KR20180063264A (ko) | 2018-06-11 |
US20190074447A1 (en) | 2019-03-07 |
TWI617648B (zh) | 2018-03-11 |
EP3369728B1 (en) | 2020-12-23 |
US10770661B2 (en) | 2020-09-08 |
CN106892857A (zh) | 2017-06-27 |
WO2017101675A1 (zh) | 2017-06-22 |
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