| 金属电极对聚对苯乙炔电致发光过程的影响 |
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| 引用本文： | 彭俊彪,刘志斌.金属电极对聚对苯乙炔电致发光过程的影响[J].发光学报,1997,18(2):155-160. |
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| 作者姓名： | 彭俊彪 刘志斌 |
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| 作者单位： | 1. 中国科学院长春物理研究所, 长春 130021;2. 中国科学院激发态物理开放研究实验室, 长春 130021 |
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| 基金项目： | 国家自然科学重点基金，中国科学院激发态物理开放实验室基金 |
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| 摘 要： | 分别采用两种不同功函数的电子注入电极铝(Al)和钙(Ca),构造出了在正常光照下发光可见的单层聚对苯乙炔(PPV)的电致发光器件.发现电极材料的不同使发射光谱产生明显差异,主要表现在550nm的发射峰与510nm发射峰强度的比值不同.通过电致发光(EL)与光致发光(PL)过程的比较,分析了产生这种显著差异的原因.进一步明晰了电流密度与亮度呈线性关系的物理过程.
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| 关 键 词： | 金属电极 聚对苯乙炔 电致发光 |
| 收稿时间： | 1996-07-09 |
A EFFECT OF METAL ELECTRODE ON ELECTROLUMINESCENT PROCESSES IN POLY( p PHENYLENE VINYLENE) |
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| Peng Junbiao,a,Liu Zhibin Li Wenlian Yu Jiaqi,a,Zhong Guozhu,Liu Xingyuan,Zhao Yu.A EFFECT OF METAL ELECTRODE ON ELECTROLUMINESCENT PROCESSES IN POLY( p PHENYLENE VINYLENE)[J].Chinese Journal of Luminescence,1997,18(2):155-160. |
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| Authors: | Peng Junbiao a Liu Zhibin Li Wenlian Yu Jiaqi a Zhong Guozhu Liu Xingyuan Zhao Yu |
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| Institution: | 1. Changchun Institute of Physics, Chinese Academy of Sciences, Changchun 130021;2. Labroatory of Excited State Processes, Chinese Academy of Sciences, Changchun 130021 |
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| Abstract: | A single layer structure electroluminescence devices based on poly( p phenylene vinylene) with two kinds of electron injection electrodes of aluminum and calcium were fabricated, of which electroluminescence emission can be observed in normal lit room. An interesting experiment phenomenon was observed. EL spectrum band depends on metal electrode. The ratio of intensity of the peak at 550 nm to that of the peak at 510 nm is changed as a work function of metal electrode. The reason to the different ratio was analyzed as compared the precesses of electroluminescence with photoluminescence. It is more clear of physical processes of the linear relationship of current density and brightness by an analysis in mathematics. |
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| Keywords: | metal electrode poly( p phenylene vinylene) electroluminescence |
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