White light generation combining emissions from exciplex, excimer and electromer in TAPC-based organic light-emitting diodes

被引：72
作者：
Yang, Shengyi [1 ]
Jiang, Mingxiao [1 ]
机构：
[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2009年 / 484卷 / 1-3期
基金：
北京市自然科学基金; 中国国家自然科学基金;
关键词：
ELECTROLUMINESCENCE; RECOMBINATION; LAYER; DEVICE; BLENDS; FIELDS; IMPACT;
D O I：
10.1016/j.cplett.2009.11.005
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
By investigating the electroluminescence of bilayer organic light-emitting diodes based on 1,1-bis((di-4-tolylamino) phenyl) cyclohexane (TAPC) and 2,9-dimethyl-4,7-di(phenyl)-1,10-phenanthroline (BCP), a new emission maximized at 480 nm from TAPC/BCP interface was observed and it was confirmed to be an exciplex emission of [TAPC*BCP]. We found that the emission intensity of this exciplex increases with only increasing the thickness of BCP layer from 10 nm to 30 nm in bilayer device ITO/TAPC(60 nm)/BCP/Al. Being the hole-blocking BCP layer in the bilayer devices, the combination of electromer emission and excimer emission from TAPC, as well as exciplex emission from TAPC/BCP interface, provides a simple way to obtain white light emission. (C) 2009 Elsevier B.V. All rights reserved.
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收藏
页码：54 / 58
页数：5
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