| 聚合物掺杂有机小分子发光二极管的电致发光与杂质陷阱效应 |
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| 引用本文： | 聂海,张波,唐先忠. 聚合物掺杂有机小分子发光二极管的电致发光与杂质陷阱效应[J]. 物理学报, 2007, 56(1): 263-267 |
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| 作者姓名： | 聂海 张波 唐先忠 |
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| 作者单位： | 1. 电子科技大学微电子与固体电子学院,成都,610054;成都信息工程学院,成都,610225
2. 电子科技大学微电子与固体电子学院,成都,610054 |
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| 摘 要： | 在新型空穴传输聚合物聚TPD(PTPD)中掺杂电子传输有机小分子荧光染料Rubrene制成薄膜器件.考察了不同掺杂浓度以及不同薄膜厚度器件的电致发光性能,结果表明存在杂质陷阱效应.基于固体中双注入理论，假设杂质陷阱限制在分立能级上，通过求解泊松方程，得到了掺杂器件J-V特性解析模型.该模型的计算值与实验结果一致.
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| 关 键 词： | 电致发光 掺杂 陷阱效应 |
| 文章编号： | 1000-3290/2007/56(01)/0263-05 |
| 收稿时间： | 2006-04-03 |
| 修稿时间： | 2006-04-03 |
Electroluminescence of polymer doped small-molecules light-emitting diodes and the effects of doping trap |
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| Nie Hai,Zhang Bo,Tang Xian-Zhong. Electroluminescence of polymer doped small-molecules light-emitting diodes and the effects of doping trap[J]. Acta Physica Sinica, 2007, 56(1): 263-267 |
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| Authors: | Nie Hai Zhang Bo Tang Xian-Zhong |
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| Abstract: | Polymer doped small-molecule light-emitting diodes have been fabricated using a novel PTPD (poly-TPD) as the hole transport material and the highly fluorescent rubrene as the dopant. Electroluminescent characteristics are studied at different doped concentrations and different film thicknesses. The results indicate the presence of doping trap effect. It is assumed that the traps are limited at discrete levels. Based upon the double-carrier injection theory, an analytical model of J-V characteristics of doped device is deduced by solving the Poisson equation. Calculated data of this model are consistent with our experimental results. |
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| Keywords: | electroluminescence doping trapping effect |
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