中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Extension of Molecular Structure toward Solution-Processable Hosts for Efficient Blue Phosphorescent Organic Light-Emitting Diodes

文献类型:期刊论文

作者Gong SL ; Zhong C ; Fu Q ; Ma DG ; Qin JG ; Yang CL
刊名journal of physical chemistry c
出版日期2013
卷号117期号:1页码:549-555
关键词TRIPHENYLAMINE-BENZIMIDAZOLE DERIVATIVES ELECTRON-TRANSPORT MATERIALS HIGH TRIPLET ENERGY BIPOLAR HOST ELECTROPHOSPHORESCENT DEVICES GREEN ELECTROPHOSPHORESCENCE ELECTROLUMINESCENT DEVICES IRIDIUM COMPLEXES SINGLE-LAYER MAIN-CHAIN
ISSN号1932-7447
通讯作者ma dg
中文摘要two new host materials, namely dbisipa and doxdsipa, were designed and synthesized by incorporating an electron-donating diphenylamine unit and an electron-accepting benzimidazole or oxadiazole moiety into one molecule via double-silicon-bridged linkage. this extension of molecular structure endows these compounds with good solution processability and high thermal stability without lowering their triplet energies. dbisipa and doxdsipa exhibit similar energy levels and significantly higher glass transition temperatures (146 and 149 degrees c) relative to the corresponding single-silicon-bridged congeners. as a result, solution-processed blue phosphorescent devices employing bis(4,6-difluorophenyl)pyridine-n,c-2')picolinate (firpic) as guest and the two compounds as hosts exhibit high efficiencies with the maximum current efficiency of 16.2 cd a(-1) for dbisipa and 15.2 cd a(-1) for doxdsipa. these efficiencies are significantly higher than those of the control blue device employing typical nonconjugated polymer, poly(9-vinylcarbazole) (pvk), as the host, and even comparable to those of the complicated control device employing pvk doped with 30 wt % 1,3-bis[(4-tert-butylphenyl)-1,3,4-oxadiazolyl]phenylene (oxd-7) as the mixed host.
收录类别SCI收录期刊论文
语种英语
WOS记录号WOS:000313220700071
公开日期2014-04-16
源URL[http://ir.ciac.jl.cn/handle/322003/50112]  
专题长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式
GB/T 7714
Gong SL,Zhong C,Fu Q,et al. Extension of Molecular Structure toward Solution-Processable Hosts for Efficient Blue Phosphorescent Organic Light-Emitting Diodes[J]. journal of physical chemistry c,2013,117(1):549-555.
APA Gong SL,Zhong C,Fu Q,Ma DG,Qin JG,&Yang CL.(2013).Extension of Molecular Structure toward Solution-Processable Hosts for Efficient Blue Phosphorescent Organic Light-Emitting Diodes.journal of physical chemistry c,117(1),549-555.
MLA Gong SL,et al."Extension of Molecular Structure toward Solution-Processable Hosts for Efficient Blue Phosphorescent Organic Light-Emitting Diodes".journal of physical chemistry c 117.1(2013):549-555.

入库方式: OAI收割

来源:长春应用化学研究所

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