| MEH-PPV/SiO_2异质结发光机理和非晶SiO_2二次特性的研究 |
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| 引用本文： | 曲崇,徐征,陈跃宁.MEH-PPV/SiO_2异质结发光机理和非晶SiO_2二次特性的研究[J].光谱学与光谱分析,2009,29(12). |
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| 作者姓名： | 曲崇 徐征 陈跃宁 |
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| 作者单位： | 1. 鲁东大学物理与电子工程学院,山东烟台,264025
2. 北京交通大学光电子技术研究所,北京,100044 |
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| 基金项目： | 鲁东大学博士科研启动基金项目，国家"863"计划项目，国家自然科学基金项目，北京市自然科学基金项目，教育部博士点基金项目，博士点新教师基金项目 |
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| 摘 要： | 在薄膜电致发光中采用有机聚合物MEH-PPV和无机半导体SiO_2复合制成异质结发光器件,利用SiO_2的加速、倍增和离化的二次特性,实现了固态阴极射线发光.结构为ITO/SiO_2/MEH-PPV/SiO_2/Al的发光器件,其电致发光光谱的显著特征是有两个发光谱带.光谱中除了波长较长(峰值为583 nm)的MEH-PPV的激子发光谱外,还观察到了波长较短(峰值为403 nm)的蓝色发光谱,并且长短波的发光强度随着电压的不同而变化.电压较低时,只有长波光发射.当电压较高时,只有短波光存在.这种有两个谱带的发光是固态阴极射线发光的独特标志,它是一种全新的激发方式,引发出发光学中一些新而重要的问题.固态阴极射线发光理论的重要方面之一就足SiO_2的二次特性.文章研究了固态阴极射线发光动力学问题,高电场下SO_2二次特性及厚度对二次特性的影响.
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| 关 键 词： | 异质结 过热电子 固态阴极射线发光 SiO_2二次特性 |
Investigation of Luminescence Mechanism of Hybrid MEH-PPV/SiO_2 and Super Liner Characteristic of Amorphous SiO_2 |
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| QU Chong,XU Zheng,CHEN Yue-ning.Investigation of Luminescence Mechanism of Hybrid MEH-PPV/SiO_2 and Super Liner Characteristic of Amorphous SiO_2[J].Spectroscopy and Spectral Analysis,2009,29(12). |
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| Authors: | QU Chong XU Zheng CHEN Yue-ning |
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| Institution: | QU Chong1,XU Zheng2,CHEN Yue-ning21.School of Physics and Electronic Engineering,Ludong University,Yantai 264025,China2.Institute of Optoelectronic Technology,Beijing Jiaotong University,Beijing 100044,China |
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| Abstract: | For electricity induced luminescence of thin film,the heterojunction luminescence devices were produced by compounding the organic polymer of MEH-PPV and inorganic semiconductor SiO2.Utilizing the super liner characteristic of SiO2 as acceleration,multiplication and ionization,the solid-state cathodoluminescence was realized.The obvious feature of electroluminescence in the luminescence device with ITO/SiO2/MEH-PPV/SiO2/Al is that it has two spectral bands.In the electroluminescence spectra,the authors obta... |
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| Keywords: | Heterojunction Hot electrons Solid-state cathodoluminescence Super liner characteristic of SiO_2 |
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