185112-61-2Relevant articles and documents
Synthesis of pyrimidine-cored host materials bearing phenylcarbazole for efficient yellow phosphorescent devices: Effect of linkage position
Jang, Hong-Gu,Song, Wook,Lee, Jun Yeob,Hwang, Seok-Ho
, p. 17030 - 17033 (2015)
Two isomeric host materials were synthesized and their photophysical properties and device performances were investigated. In particular, para-substituted pPDPC exhibited the most intense efficiency regardless of the low triplet energy compared to that of meta-substituted mPDPC. The EQE of the pPDPC device reached as high as 22.3% with a yellow color coordinate of (0.49, 0.50). This journal is
Efficient orange-red phosphorescent organic light-emitting diodes using an in situ synthesized copper(i) complex as the emitter
Wei, Feng,Qiu, Jacky,Liu, Xiaochen,Wang, Jianqiang,Wei, Huibo,Wang, Zhibin,Liu, Zhiwei,Bian, Zuqiang,Lu, Zhenghong,Zhao, Yongliang,Huang, Chunhui
, p. 6333 - 6341 (2014)
Inexpensive and eco-friendly luminescent Cu(i) complexes are ideal phosphorescent emitters for high efficiency organic light-emitting diodes (OLEDs). A series of pyrazinyl carbazole (CPz) compounds were designed and synthesized to obtain efficient luminescent Cu(i) complexes through reaction with CuI using a vacuum codeposition method. Based on photophysical studies of the CPz compounds and their codeposited CuI-CPz films, the compound 9-(3-(6-(carbazol-9-yl)pyrazin-2-yl)phenyl)-carbazole (CPzPC) with CuI was chosen as the emissive layer for OLED fabrication, where the emitter was identified as Cu2(μ-I)2(CPzPC)4 on the basis of X-ray absorption spectroscopy. After optimizing the device architecture and material selection including the CuI doping concentration and hole transporting layer, an efficient orange-red emitting OLED with a maximum emission band, an external quantum efficiency (EQE), and a luminance of 590 nm, 6.6% and 8619 cd m-2 (10 V), respectively, was achieved.
HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
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Paragraph 0321-0323; 0341-0343, (2020/07/14)
A heterocyclic compound represented by Formula 1 and an organic light-emitting device the heterocyclic compound represented by Formula 1: wherein, in Formula 1, Cz1 is a group represented by Formula 1A, Het1 is a group represented by Formula 1B, wherein, R1 to R10, R20, R30, R40, R50, and b10 to b50 are each independently the same as described in the detailed description of the specification.
Compound, display panel and display device
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Paragraph 0103-0105, (2020/01/12)
The present invention relates to the technical field of organic light emitting diodes (OLED), and provides a compound having a thermally activated delayed fluorescence (TADF) property. The structure of the compound is shown in a formula 1, wherein Ar represents C6-C20 aryl or C5-C20 heteroaryl; D and D represent electron donating groups; A and A represent electron accepting groups; m,n, p and q are separately and independently selected from 1,2,3; D, D, A and A are separately connected to a benzene ring connected with the Ar; D and D are ones separately and independently selected from C1-C20 alkyl, C3-C20 cycloalkyl, C1-C20 alkoxy, C3-C20 heterocyclyl, C6-C40 aryl, C4-C40 heteroaryl, C10-C60 fused heteroaryl, C10-C60 fused heteroaryl, carbazole groups, diphenylamine groups and acridinyl groups; and A and A are separately and independently selected from nitrogen-containing heterocyclic substituents, cyano-containing substituents, carbonyl-containingsubstituents, sulfone substituents, and phosphorus-containing oxygen-containing substituents. The compound provided by the invention is suitable for being used as luminescent host or guest materials of OLED. The invention also provides a display panel and a display device comprising the compound.
