Phosphorescent Light-Emitting Transistors: Harvesting Triplet Excitons

Autor: Shih-Chun Lo, Ifor D. W. Samuel, Ben B. Y. Hsu, Ebinazar B. Namdas, Paul L. Burn, Zehua Liu
Rok vydání: 2009
Předmět:
Zdroj: Advanced Materials. 21:4957-4961
ISSN: 0935-9648
DOI: 10.1002/adma.200900919
Popis: Phosphorescent light-emitting transistors, in which light emission from singlet and triplet energy levels is harvested using solution-processed materials (see figure), 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 x 10(-2) cm(2) V-1 s(-1).
Databáze: OpenAIRE