標題: Efficient multilayer red fluorescent polymer light-emitting diodes by host and guest blend system
作者: Syu, Wun-Shing
Lin, Sheng-Chia
Tseng, Shin-Rong
Chen, Chun-Yu
Liu, Chang-Yao
Chao, Yu-Chiang
Meng, Hsin-Fei
Horng, Sheng-Fu
物理研究所
Institute of Physics
關鍵字: Polymer light-emitting diodes;Red light;Host and guest;Blend;Multilayer;Blade coating
公開日期: 1-五月-2010
摘要: Efficient red light polymer light-emitting diodes are obtained by energy transfer from host and guest blend system. Two kinds of blend systems, SPB02:(10-(2-benzothiazolyl)-1,1,7,7-tetramethyl-2,3,6,7-tetrahydro-1H,5H,11H-[1] benzopyrano [6,7,8-ij]quinolizin-11-one)(C545T):4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB) and SuperYellow (SY):poly(3,3'''-didodecylquaterthiophene) (PQT-12), are used as the active layers. C545T is a green emitter, acting as an assistant dopant to improve the energy transfer from blue SPB02 host to red DCJTB. The efficiency can achieve to 3.3 cd/A for DCJTB and 3.5 cd/A for PQT-12 system by multilayer device structure with 2,2,2 ''-(1,3,5-phenylene)-tris(1-phenyl-1H-benzimidazole) (TPBi) as electron transport layer. The SuperYellow:PQT-12 device shows great luminance of 16,930 cd/m(2). (C) 2010 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.synthmet.2010.01.037
http://hdl.handle.net/11536/5474
ISSN: 0379-6779
DOI: 10.1016/j.synthmet.2010.01.037
期刊: SYNTHETIC METALS
Volume: 160
Issue: 9-10
起始頁: 871
結束頁: 875
顯示於類別:期刊論文


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