Center for Polymers and Organic Solids, University of California Santa Barbara, CA 93106 (USA).
Department of Chemistry, Chemical Research Laboratory University of Oxford, Mansfield Road, Oxford, OX1 3TA (UK).
Adv Mater. 2009 Dec 28;21(48):4957-4961. doi: 10.1002/adma.200900919. Epub 2009 Aug 24.
Phosphorescent light-emitting transistors, in which light emission from singlet and triplet energy levels is harvested using solution-processed materials, are presented. While a green phosphorescent dendrimer exhibits an external quantum efficiency of 0.45% at 480 cd m(-2) , a red polymer/phosphorescent small-molecule blend produces a brightness exceeding 30 cd m(-2) with a relatively high hole mobility of 2.5 × 10(-2) cm(2) V(-1) s(-1) .
本文介绍了使用溶液处理材料收集单重态和三重态能级的荧光发光晶体管。当绿色磷光树枝状大分子在 480 cd/m(2)下的外量子效率为 0.45%时，红色聚合物/磷光小分子混合物的亮度超过 30 cd/m(2)，且空穴迁移率相对较高，为 2.5×10(-2) cm(2) V(-1) s(-1)。
