中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Conversion process of the dominant electroluminescence mechanism in a molecularly doped organic light-emitting device with only electron trapping

文献类型:期刊论文

作者Zhou L ; Zhang HJ ; Deng RP ; Li ZF ; Yu JB ; Guo ZY
刊名journal of applied physics
出版日期2007
卷号102期号:6页码:文献编号:064504
关键词ENERGY-TRANSFER EUROPIUM COMPLEX LAYER DIODES DYE EFFICIENCY QUINACRIDONE EMISSION
ISSN号0021-8979
通讯作者zhang hj
中文摘要in this work, the detailed conversion process of the dominant electroluminescence (el) mechanism in a device with eu(tta)(3)phen (tta=thenoyltrifluoroacetone, phen=1,10-phenanthroline) doped cbp (4,4(')-n,n-'-dicarbazole-biphenyl) film as the emitting layer was investigated by analyzing the evolution of carrier distribution on dye and host molecules with increasing voltage. firstly, it was confirmed that only electrons can be trapped in eu(tta)(3)phen doped cbp. as a result, holes and electrons would be situated on cbp and eu(tta)(3)phen molecules, respectively, and thus creates an unbalanced carrier distribution on both dye and host molecules. with the help of el and photoluminescence spectra, the distribution of holes and electrons on both eu(tta)(3)phen and cbp molecules was demonstrated to change gradually with increasing voltage. therefore, the dominant el mechanism in this device changes gradually from carrier trapping at relatively low voltage to forster energy transfer at relatively high voltage.
收录类别SCI
语种英语
WOS记录号WOS:000249787200098
公开日期2010-07-13
源URL[http://ir.ciac.jl.cn/handle/322003/13789]  
专题长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式
GB/T 7714
Zhou L,Zhang HJ,Deng RP,et al. Conversion process of the dominant electroluminescence mechanism in a molecularly doped organic light-emitting device with only electron trapping[J]. journal of applied physics,2007,102(6):文献编号:064504.
APA Zhou L,Zhang HJ,Deng RP,Li ZF,Yu JB,&Guo ZY.(2007).Conversion process of the dominant electroluminescence mechanism in a molecularly doped organic light-emitting device with only electron trapping.journal of applied physics,102(6),文献编号:064504.
MLA Zhou L,et al."Conversion process of the dominant electroluminescence mechanism in a molecularly doped organic light-emitting device with only electron trapping".journal of applied physics 102.6(2007):文献编号:064504.

入库方式: OAI收割

来源:长春应用化学研究所

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