1385028-97-6Relevant articles and documents
Blue fluorescence from the ligand and yellow phosphorescence from the iridium complex: High-efficiency wet-processed white organic light-emitting device
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
, p. 119 - 122 (2012/07/31)
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 (~18 cd/A) white-light emitting device (CIE 0.31, 0.39) was obtained using the ligand as the blue-fluorescence emitter and the complex as the yellow-phosphorescence emitter. Therefore, the ligand can be a coordinator, an emitter and partly, a host. This is beneficial to device efficiency and saving cost for large-scale manufacturing.