Blue fluorescence from the ligand and yellow phosphorescence from the iridium complex: High-efficiency wet-processed white organic light-emitting device

…, YZ Shang, MY Zhang, L Long, H Xu, XF Li, B Wei

Index: Yu, Fang-Fang; Fan, He-Liang; Huang, Hai-Fang; Cao, Qian-Yong; Dai, Yan-Feng; Gao, Xi-Cun; Shang, Yu-Zhu; Zhang, Min-Yan; Long, Li; Xu, Hong; Li, Xi-Feng; Wei, Bin Inorganica Chimica Acta, 2012 , vol. 390, p. 119 - 122

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Citation Number: 7

Abstract

We synthesized four carbazole modified blue-emitting fluorescent ligands. These ligands coordinated with Ir3+ and four yellow-emitting phosphorescent complexes were obtained. A high-efficiency (current efficiency 20.6 cd/A) yellow electrophosphorescence device was wet- fabricated using the complex as a guest. The ligands can harvest and transfer energy to the complexes and a high efficiency (∼ 18cd/A) white-light emitting device (CIE 0.31, 0.39) ...