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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