Solution-Processed Double-Silicon-Bridged Oxadiazole/Arylamine Hosts for High-Efficiency Blue Electrophosphorescence

doi:10.1021/cm301032p

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	Solution-Processed Double-Silicon-Bridged Oxadiazole/Arylamine Hosts for High-Efficiency Blue Electrophosphorescence
	Gong, Shaolong 1; Fu, Qiang 2; Zeng, Weixuan 1; Zhong, Cheng 1; Yang, Chuluo 1; Ma, Dongge 2; Qin, Jingui 1
刊名	CHEMISTRY OF MATERIALS
	2012-08-28
卷号	24 期号:16 页码:3120-3127
关键词	Blue Phosphorescent Oleds Solution-processed Host Materials Double-silicon-bridged
ISSN号	0897-4756
DOI	10.1021/cm301032p
英文摘要	A series of oxadiazole/arylamine hybrids, namely pOXDDSiPA, pOXDDSiCz, mOXDDSiPA, and mOXDDSiCz, were designed and synthesized by incorporating electron donating diphenylamine or 3,6-di-tert-butyl-9H-carbazole unit and electron accepting oxadiazole moiety into one molecule via double-silicon-bridged linkage. This design strategy of extending molecular structure endows these compounds with good solution processability, and high thermal and morphological stability, without lowering their triplet energies. These compounds exhibit similar energy levels and higher glass transition temperatures (92-190 degrees C) relative to the corresponding single-silicon-bridged congeners. The reasonable combination of the tetra-meta-position linking topology and electron donor diphenylamine group imparts the. compound mOXDDSiPA with both relative high triplet energy (2.72 eV) and high lying HOMO level (5.30 eV). As a result, the best EL performance was achieved for the mOXDDSiPA-based blue phosphorescent device, with a maximum current efficiency of 23.4 cd A(-1), a maximum power efficiency of 10.2 lm W-1, and a maximum external quantum efficiency of 10.7%. Moreover, the current efficiency remains as high as 23.3 cd A(-1) at the luminance of 100 cd m(-2), and even at the high luminance of 1000 cd m(-2), the efficiency is still 17.7 cd A(-1).
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000307988800004
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/48637]
专题	中国科学院化学研究所
通讯作者	Yang, Chuluo
作者单位	1.Wuhan Univ, Hubei Key Lab Organ & Polymer Optoelect Mat, Dept Chem, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Gong, Shaolong,Fu, Qiang,Zeng, Weixuan,et al. Solution-Processed Double-Silicon-Bridged Oxadiazole/Arylamine Hosts for High-Efficiency Blue Electrophosphorescence[J]. CHEMISTRY OF MATERIALS,2012,24(16):3120-3127.
APA	Gong, Shaolong.,Fu, Qiang.,Zeng, Weixuan.,Zhong, Cheng.,Yang, Chuluo.,...&Qin, Jingui.(2012).Solution-Processed Double-Silicon-Bridged Oxadiazole/Arylamine Hosts for High-Efficiency Blue Electrophosphorescence.CHEMISTRY OF MATERIALS,24(16),3120-3127.
MLA	Gong, Shaolong,et al."Solution-Processed Double-Silicon-Bridged Oxadiazole/Arylamine Hosts for High-Efficiency Blue Electrophosphorescence".CHEMISTRY OF MATERIALS 24.16(2012):3120-3127.