Jiang Zuoquan, Yao Haiqing, Zhang Zhiqiang, Yang Chuluo, Liu Zhongyin, Tao Youtian, Qin Jingui, Ma Dongge
Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University, Wuhan 430072, PR China.
Org Lett. 2009 Jun 18;11(12):2607-10. doi: 10.1021/ol9008816.
4-Bromo-9,9'-spirobifluorene is facilely synthesized, and from this precursor, two ortho-linked oligo-9,9'-spirobifluorenes, 44BSF and 24TSF, are constructed. Devices with 24TSF as the full-hydrocarbon host material and Ir(ppy)(3) or (ppq)(2)Ir(acac) as the triplet emitter show maximum external quantum efficiencies of 12.6 and 10.5% for green and red electrophosphorescence, respectively.
4-溴-9,9'-螺二芴易于合成，从该前体出发，构建了两种邻位连接的寡聚-9,9'-螺二芴，即44BSF和24TSF。以24TSF作为全碳主体材料、Ir(ppy)(3)或(ppq)(2)Ir(acac)作为三重态发射体的器件，对于绿色和红色电磷光，其最大外量子效率分别为12.6%和10.5%。
