標題: | Efficient white-light-emitting diodes based on poly(N-vinylcarbazole) doped with blue fluorescent and orange phosphorescent materials |
作者: | Shih, Ping-I Shu, Ching-Fong Tung, Yung-Liang Chi, Yun 應用化學系 Department of Applied Chemistry |
公開日期: | 19-六月-2006 |
摘要: | We have fabricated polymer white-light-emitting devices possessing a single emitting layer containing a hole-transporting host polymer, poly(N-vinylcarbazole), and an electron-transporting auxiliary, 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole, doped with a blue-light-emitting amino-substituted distyrylarylene fluorescent dye and an orange-light-emitting osmium phosphor. The doubly doped device exhibited an intense white emission having Commission Internationale de l'Eclairage coordinates of (0.33, 0.34), a high external quantum efficiency of 6.12% (13.2 cd/A), and a maximum brightness of 11 306 cd/m(2). The color coordinates remained unchanged over a range of operating voltages, even at luminance as high as 1x10(4) cd/m(2). (c) 2006 American Institute of Physics. |
URI: | http://dx.doi.org/10.1063/1.2214141 http://hdl.handle.net/11536/12140 |
ISSN: | 0003-6951 |
DOI: | 10.1063/1.2214141 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 88 |
Issue: | 25 |
結束頁: | |
顯示於類別: | 期刊論文 |