Synthesis and characterization of blue-to-green electrophosphorescence emitter based on pyrazole iridium complexes
Synthesis and characterization of blue-to-green electrophosphorescence emitter based on pyrazole iridium complexes
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基于吡唑铱配合物的蓝绿电致磷光发射体的合成与表征
DOI:
10.1016/j.dyepig.2013.04.022
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发表时间:
2013-10
影响因子:
4.5
通讯作者:
Xu Bingshe
中科院分区:
文献类型:
--
作者:
Xu Huixia;Yue Yan;Qu Litao;Hao Yuying;Wang Hua;Chen Liuqing;Xu Bingshe
To overcome the roll-off efficiency of electrophosphorescent organic light-emitting devices, Ir(III) complexes of (ppz)2Ir(NˆN) were synthesized and named for (ppz)2Ir(tfmpptz), (ppz)2Ir(fpptz), (ppz)2Ir(tfmptz) and (ppz)2Ir(pybi) (ppz: 1-phenylpyrazolato; NˆN: N, N′-heteroaromatic). Their molecular structures, photophysical properties and cyclic voltammetric data were reported. The crystals of (ppz)2Ir(tfmpptz), (ppz)2Ir(fpptz) are monoclinic, space group P2(1)/n, and (ppz)2Ir(tfmptz) is triclinic, space group P-1. The emission maximum peaks of (ppz)2Ir(tfmpptz), (ppz)2Ir(fpptz), (ppz)2Ir(tfmptz) and (ppz)2Ir(pybi) at room temperature appear at 486, 497, 473 and 530 nm, respectively. The devices with architecture of ITO/NPB (30 nm)/CBP: (ppz)2Ir(NˆN) (6%, 30 nm)/BAlq(10 nm)/Alq3(30 nm)/LiF(1 nm)/Al (100 nm) were fabricated by thermal evaporation. The results indicate that the larger steric hindrance of ancillary ligands efficiently suppressed the roll-off of efficiency at high current density.
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影响因子:
1.8
作者:
Xue-Qin Ran;Ji-Kang Feng;Aimin Ren;W. Tian;Luyi Zou;Yan-ling Liu;Chia-Chung Sun
通讯作者:
Xue-Qin Ran;Ji-Kang Feng;Aimin Ren;W. Tian;Luyi Zou;Yan-ling Liu;Chia-Chung Sun
DOI:
10.1021/jp061286i
发表时间:
2006-06
期刊:
The journal of physical chemistry. A
影响因子:
--
作者:
Guochun Yang;Y. Liao;Z. Su;Hongyu Zhang;Yue Wang
通讯作者:
Guochun Yang;Y. Liao;Z. Su;Hongyu Zhang;Yue Wang
影响因子:
4.3
作者:
Hsieh, Cheng-Han;Wu, Fang-Iy;Cheng, Chien-Hong
通讯作者:
Cheng, Chien-Hong
影响因子:
24.2
作者:
Fu, Hungshin;Cheng, Yi-Ming;Chi, Yun
通讯作者:
Chi, Yun
影响因子:
2.9
作者:
C. Zhan;J. Nichols;D. Dixon
通讯作者:
C. Zhan;J. Nichols;D. Dixon