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 |
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Rok vydání: | 2009 |
Předmět: |
Organic electronics
Electron mobility Materials science Photoluminescence business.industry Mechanical Engineering law.invention Mechanics of Materials law Optoelectronics Phosphorescent organic light-emitting diode General Materials Science Quantum efficiency Light emission Singlet state business Phosphorescence |
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 |
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