Color-tunable thiazole-based iridium(III) complexes: Synthesis, characterization and their OLED applications
Color-tunable thiazole-based iridium(III) complexes: Synthesis, characterization and their OLED applications
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DOI：
10.1016/j.jorganchem.2016.11.018
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发表时间：
2017-02-01
影响因子：
2.3
通讯作者：
Wong, Wai-Yeung
中科院分区：
文献类型：
--
作者：
Chau, Nga-Yuen;Ho, Po-Yu;Wong, Wai-Yeung
对于基准掺杂剂Ir(Ppy)(3)中常用的缺电子吡啶基团，将富电子的噻唑基与不同的生色团结合起来还没有得到广泛的研究。本文合成了一些含噻唑基功能配体的Ir(III)配合物，并用H-1和C-13核磁共振、紫外可见吸收光谱和光致发光光谱对其结构进行了表征。这些基于噻唑基的Ir(III)配合物的发光颜色可以从黄色调到红色，最好的磷光有机发光器件的最大外量子效率为11.1%，电流效率为35.8cd/A，功率效率为21.9lm/W。(C)2016 Elsevier B.V.
With respect to the commonly used electron-deficient pyridyl group in the benchmark dopant Ir(ppy)(3), incorporating the electron-rich thiazolyl group with different chromophores have not been extensively studied. In this paper, some iridium(III) complexes bearing functional ligands with the thiazolyl moiety were synthesized and characterized by H-1 and C-13 NMR, UV Vis absorption and photoluminescence spectroscopy. The emission color of these thiazole-based Ir(III) complexes can be tuned from yellow to red and the best phosphorescent organic light-emitting device exhibited the maximum external quantum efficiency of 11.1%, current efficiency of 35.8 cd/A and power efficiency of 21.9 lm/W. (C) 2016 Elsevier B.V. All rights reserved.