Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5391102 | Chemical Physics Letters | 2006 | 4 Pages |
Abstract
This work reports on the fabrication of an efficient polymer light-emitting device by applying iridium (Ir) complex, dibenzo[f,h]-quinoxaline iridium (acetylacetonate) [Ir(DBQ)2(acac)], as the phosphorescent dopant, poly(9-vinylcarbazole) as the matrix layer, and 2-(4-biphenylyl)-5-(4-tert-butyl-phenyl)-(1,3,4-oxadiazole) as the electron transport material. The trapping of charge carriers at the Ir(DBQ)2(acac) dopant sites dominates the electroluminescence (EL) of the devices. The device emits red electrophosphorescence centered at 610Â nm, exclusively from the Ir dopant and an EL efficiency of 8.5Â cd/A (1287Â cd/m2) biased at 14.5Â mA/cm2.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Chin-Yu Chang, Sung-Nien Hsieh, Ten-Chin Wen, Tzung-Fang Guo, Chien-Hong Cheng,