標題: Bright white light electroluminescent devices based on a dye-dispersed polyfluorene derivative
作者: Kim, JH
Herguth, P
Kang, MS
Jen, AKY
Tseng, YH
Shu, CF
應用化學系
Department of Applied Chemistry
公開日期: 16-Aug-2004
摘要: A series of efficient and bright white light-emitting diodes were fabricated using the blends of two fluorene-derived fluorescent dyes, (4,7-bis-(9,9,9('),9(')-tetrahexyl-9H,9(')H-[2,2(')]bifluoren-7-yl)-benzo[1,2,5]thiadiazole) (FFBFF-emits green) and (4,7-bis-[5-(9,9-dihexyl-9H-fluoren-2-yl)-thiophen-2-yl]-benzo[1,2,5]thiadiazole) (FTBTF-emits red) in an efficient blue-emitting polyfluorene-derived copolymer (poly[(9,9-bis(4-di(4-n-butylphenyl)aminophenyl))]-stat-(9,9-bis(4-(5-(4-tert-butylphenyl)-2-oxadiazolyl)-phenyl))-stat-(9,9-di-n-octyl)fluorene) (PF-TPA-OXD). The resulting white light-emitting device reaches a maximum external quantum efficiency of 0.82% and a maximum brightness of 12 900 cd/m(2) at 12 V. The Commission Internationale d'Enclairage chromaticity coordinates of the device remain very close to that of pure white emission at a relatively broad bias range from 6 V (x=0.36, y=0.37) to 12 V (x=0.34, y=0.34). (C) 2004 American Institute of Physics.
URI: http://dx.doi.org/10.1063/1.1778472
http://hdl.handle.net/11536/26468
ISSN: 0003-6951
DOI: 10.1063/1.1778472
期刊: APPLIED PHYSICS LETTERS
Volume: 85
Issue: 7
起始頁: 1116
結束頁: 1118
Appears in Collections:Articles


Files in This Item:

  1. 000223233800008.pdf

If it is a zip file, please download the file and unzip it, then open index.html in a browser to view the full text content.