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1. WO2020192042 - ELECTROLUMINESCENT MATERIAL, METHOD FOR PREPARING ELECTROLUMINESCENT MATERIAL, AND LIGHT-EMITTING DEVICE

Publication Number WO/2020/192042
Publication Date 01.10.2020
International Application No. PCT/CN2019/106408
International Filing Date 18.09.2019
IPC
C07D 219/02 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
219Heterocyclic compounds containing acridine or hydrogenated acridine ring systems
02with only hydrogen, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
C07D 401/04 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
401Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
02containing two hetero rings
04directly linked by a ring-member-to-ring- member bond
C07D 401/14 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
401Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
14containing three or more hetero rings
H01L 51/54 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
54Selection of materials
CPC
C07D 219/02
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
219Heterocyclic compounds containing acridine or hydrogenated acridine ring systems
02with only hydrogen, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
C07D 401/14
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
401Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
14containing three or more hetero rings
C09K 11/06
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
11Luminescent, e.g. electroluminescent, chemiluminescent materials
06containing organic luminescent materials
C09K 2211/1007
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
2211Chemical nature of organic luminescent or tenebrescent compounds
10Non-macromolecular compounds
1003Carbocyclic compounds
1007Non-condensed systems
C09K 2211/1011
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
2211Chemical nature of organic luminescent or tenebrescent compounds
10Non-macromolecular compounds
1003Carbocyclic compounds
1011Condensed systems
C09K 2211/1029
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
2211Chemical nature of organic luminescent or tenebrescent compounds
10Non-macromolecular compounds
1018Heterocyclic compounds
1025characterised by ligands
1029containing one nitrogen atom as the heteroatom
Applicants
  • 武汉华星光电半导体显示技术有限公司 WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 吴凯龙 WU, Kailong
  • 张曲 ZHANG, Qu
Agents
  • 深圳翼盛智成知识产权事务所(普通合伙) ESSEN PATENT & TRADEMARK AGENCY
Priority Data
201910239980.327.03.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) ELECTROLUMINESCENT MATERIAL, METHOD FOR PREPARING ELECTROLUMINESCENT MATERIAL, AND LIGHT-EMITTING DEVICE
(FR) MATÉRIAU ÉLECTROLUMINESCENT, PROCÉDÉ DE PRÉPARATION DE MATÉRIAU ÉLECTROLUMINESCENT, ET DISPOSITIF ÉLECTROLUMINESCENT
(ZH) 电致发光材料、电致发光材料的制备方法及发光器件
Abstract
(EN)
Provided are an electroluminescent material, a method for preparing the electroluminescent material, and a light-emitting device containing the electroluminescent material. Strong electron withdrawing groups such as a cyano group, pyridine, pyrimidine and s-triazine are used to enhance the electron withdrawing property of a fluorenone receptor unit so as to enhance an electron pushing and drawing effect between an electron donor unit and an electron acceptor unit in a molecule, so that an intermolecular charge transfer property is enhanced while the molecule is subjected to luminescence red-shift, thereby further reducing an energy level difference between the singlet-state energy level and the triplet-state energy level of a target molecule, and achieving a long-life electroluminescent material emitting red light.
(FR)
L'invention concerne un matériau électroluminescent, un procédé de préparation d'un matériau électroluminescent, et un dispositif électroluminescent contenant le matériau électroluminescent. L'invention utilise des groupes attracteurs d'électrons forts tels qu'un groupe cyano, pyridine, pyrimidine et s-triazine ce qui permet d'améliorer la propriété d'attraction d'électrons d'une unité réceptrice de fluorénone de façon à améliorer l'effet de poussée et d'attraction d'électrons entre une unité donneuse d'électrons et une unité réceptrice d'électrons dans une molécule, de telle sorte qu'une propriété de transfert de charges intermoléculaire est améliorée tandis que la molécule est soumise à un décalage de luminescence vers le rouge, ce qui permet de réduire davantage la différence de niveau d'énergie entre le niveau d'énergie d'état singulet et le niveau d'énergie d'état triplet d'une molécule cible, et d'obtenir un matériau électroluminescent de longue durée de vie émettant dans le rouge.
(ZH)
一种电致发光材料、其制备方法及包含所述发光材料的发光器件,利用氰基、吡啶、嘧啶、均三嗪等强吸电子基团增强芴酮受体单元的吸电子特性,从而增强分子内部电子给体单元和电子受体单元之间的推拉电子效应,使分子在发光红移的同时分子间电荷转移性质增强,从而达到进一步降低目标分子单线态能级和三线态能级之间能级差,获得了具有长寿命的、发出红光的电致发光材料。
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