聚合物绝缘材料电致发光现象研究的进展  

Research Progress on Electroluminescence Phenomena of Polymeric Insulation

作　　者：杨凯[1] 张冠军[1] 孙涵[1] 严璋[1] 

机构地区：[1]西安交通大学电力设备电气绝缘国家重点实验室,西安710049

出　　处：《高电压技术》2008年第1期21-26,共6页High Voltage Engineering

基　　金：国家教育部优秀青年教师资助计划支持项目(NCET-04-0943)~~

摘　　要：最近几十年来,聚合物的电致发光(EL)现象研究引起了国际研究者的广泛重视,得到了许多宝贵的实验数据和结果。为介绍国内外EL现象的研究现状和进展,给国内欲从事此项研究的人员提供较全面的认识,介绍了研究EL的实验装置和方法;在探讨聚合物EL的物理原理的基础上,分析了不同电压波形下的EL模型,并讨论了EL、空间电荷和聚合物老化之间的关系。研究结果表明EL现象与绝缘材料的老化有着密切的联系,但EL是否是材料老化的起因尚存在着争论。今后需进行更多的研究工作来探讨其关系,并希望提出新的更灵敏、更超前的聚合物绝缘状况的表征参数和检测方法。The purpose of this paper is to introduce the theory of electroluminescence （EL） published by the researchers abroad, and gives a comprehensive knowledge of EL mechanism. Firstly the experimental setup and method for studying EL phenomena is introduced. Based on presenting the physical principle of light emission, such as hot electron impact ionization, impact excitation and charge recombination regime, the EL models of polymers subjected to different voltage shape were analyzed. Finally the correlation among EL, space charge and aging of polymers is discussed. Results show that the EL has a close relationship with polymeric insulation materials, but it is not sure that if the EL is the origin to the insulation material aging, there are opposite point of view in existence among the researchers.

关 键 词：聚合物 电致发光 电荷注入 复合 空间电荷 电声脉冲法 

分 类 号：TN304[电子电信—物理电子学]