Thiazole-based metallophosphors of iridium with balanced carrier injection/transporting features and their two-colour WOLEDs fabricated by both vacuum deposition and solution processing-vacuum deposition hybrid strategy
Thiazole-based metallophosphors of iridium with balanced carrier injection/transporting features and their two-colour WOLEDs fabricated by both vacuum deposition and solution processing-vacuum deposition hybrid strategy
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具有平衡载流子注入/传输特性的噻唑基铱金属磷光体及其通过真空沉积和溶液处理-真空沉积混合策略制备的双色WOLED
DOI：
10.1039/c2jm14712b
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发表时间：
2012-03
期刊：
影响因子：
--
通讯作者：
Dongge Ma
中科院分区：
文献类型：
--
作者：
Xiaolong Yang;Wai-Yeung Wong;Xiang Zhao;Aimin Ren;Lixiang Wang;Xun Hou;Yongbiao Zhao;Xinwen Zhang;Rui Li;Jingshuang Dang;Yan Li;Guijiang Zhou;Zhaoxin Wu;Dongge Ma
New phosphorescent iridium(III) cyclometallated complexes bearing thiazole-based ligands (IrTZ1 and IrTZ2) have been developed. The functionalized organic ligands derived by combining the thiazolyl moiety and triphenylamino group have conferred not only favorable hole-injection/hole-transporting (HI/HT) features but also more balanced charge carrier injection/transporting traits to the as-prepared iridium(III) metallophosphors. Owing to the unique electronic structures afforded by the ligand, the orange organic light-emitting devices (OLEDs) made from IrTZ1 can furnish peak external quantum efficiency (ηext) of 14.82%, luminance efficiency (ηL) of 39.97 cd A−1 and power efficiency (ηp) of 34.95 lm W−1. Inspired by its outstanding electroluminescence (EL) performance, the orange IrTZ1 phosphor complemented with a blue phosphor FIrpic was employed to fabricate highly efficient white organic light-emitting devices (WOLEDs) with a single emission layer. Despite their simple device configuration, the optimized WOLEDs can still maintain decent electroluminescence (EL) ability with ηext of 7.20%, ηL of 18.07 cd A−1 and ηp of 19.57 lm W−1. With the aim to simplify the fabrication process of multi-layered WOLEDs, two-component WOLEDs were obtained through a novel solution processing–vacuum deposition hybrid method with the doped blue fluorescent emission layer deposited by a solution process and the orange phosphorescent emission layer made by vacuum deposition. The WOLEDs prepared using such exploratory approach can show an attractive EL performance with ηext of 9.06%, ηL of 22.72 cd A−1 and ηp of 17.28 lm W−1. All these data have indicated not only the great potential of the orange phosphor in monochromatic and white OLEDs, but also the importance of the hybrid method for simplifying WOLED fabrication.
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影响因子：
46.2
作者：
Hongbin Wu;Lei Ying;Wei Yang;Yong Cao
通讯作者：
Hongbin Wu;Lei Ying;Wei Yang;Yong Cao
影响因子：
--
作者：
Ray Kurzweil;Michael L. Dertouzos
通讯作者：
Ray Kurzweil;Michael L. Dertouzos
影响因子：
19
作者：
Chuluo Yang;Xiaowei Zhang;Han You;Lingyun Zhu;Lianqing Chen;Linna Zhu;Y. Tao;Dongge Ma;
通讯作者：
Chuluo Yang;Xiaowei Zhang;Han You;Lingyun Zhu;Lianqing Chen;Linna Zhu;Y. Tao;Dongge Ma;
影响因子：
1.5
作者：
S. Stinson
通讯作者：
S. Stinson
影响因子：
2.3
作者：
Guijiang Zhou;Xingwu Wang;W. Wong;Xiaoming Yu;H. Kwok;Zhenyang Lin
通讯作者：
Guijiang Zhou;Xingwu Wang;W. Wong;Xiaoming Yu;H. Kwok;Zhenyang Lin