Polymer light-emitting diodes based on cationic iridium(III) complexes with a 1,10-phenanthroline derivative containing a bipolar carbazole–oxadiazole unit as the auxiliary ligand
Polymer light-emitting diodes based on cationic iridium(III) complexes with a 1,10-phenanthroline derivative containing a bipolar carbazole–oxadiazole unit as the auxiliary ligand
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基于阳离子铱(III)络合物与含有双极性咔唑-恶二唑单元作为辅助配体的1,10-菲咯啉衍生物的聚合物发光二极管
DOI:
10.1016/j.optmat.2014.08.013
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发表时间:
2014-11
影响因子:
3.9
通讯作者:
Yong Cao
中科院分区:
文献类型:
--
作者:
Furui Yang;Hongbin Wu;Wei Yang;Yong Cao
A 1,10-phenanthroline derivative (co-phen) containing a bipolar carbazole–oxadiazole unit was synthesized and used as the auxiliary ligand in cationic iridium(III) complexes[(ppy)2Ir(co-phen)]PF6(ppy: 2-phenylpyridine) and[(npy)2Ir(co-phen)]PF6(npy: 2-(naphthalen-1-yl)pyridine). Two complexes have high thermal stability with the glass-transition temperatures (Tg) of 207 °C and 241 °C, and the same 5% weight-reduction temperatures (ΔT5%) of 402 °C. Both of them were used as phosphorescent dopants in solution-processed polymer light-emitting diodes (PLEDs): ITO/PEDOT: PSS/PVK: PBD: complex (mass ratios 100: 40:x,x= 1.0, 2.0, and 4.0)/CsF/Al. The maximum luminances of the PLEDs using[(ppy)2Ir(co-phen)]PF6and[(npy)2Ir(co-phen)]PF6were 12567 cd m−2and 11032 cd m−2, the maximum luminance efficiencies were 17.3 cd A−1and 20.4 cd A−1, the maximum power efficiencies were 9.8 lm W−1and 10.3 lm W−1, and the maximum external quantum efficiencies were 9.3% and 11.4% respectively. The CIE color coordinates were around (0.37, 0.57) and (0.44, 0.54) respectively, corresponding to the yellow green region.
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影响因子:
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作者:
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通讯作者:
Liangfeng Sun;A. Galan;Sébastien Ladouceur;J. Slinker;E. Zysman‐Colman
影响因子:
46.2
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Hongbin Wu;Lei Ying;Wei Yang;Yong Cao
影响因子:
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影响因子:
4.4
作者:
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通讯作者:
HEEGER, AJ
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作者:
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通讯作者:
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