聚苯胺电荷输运及磁阻的研究进展  

The research progress of charge transport and magnetoresistance of polyaniline

作　　者：畅磊 张余春 CHANG Lei;ZHANG Yu-chun(School of Material Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China;CAS Key Laboratory of Nanosystem and Hierarchical Fabrication,National Center for Nanoscience and Technology, The National Center for Nanoscience and Technology,Beijing 100190,China)

机构地区：[1]太原理工大学材料科学与工程学院,山西太原030024 [2]国家纳米科学中心中国科学院纳米系统与多级次制造重点实验室,北京100190

出　　处：《应用化工》2018年第10期2226-2230,共5页Applied Chemical Industry

基　　金：国家重点基础研究发展计划(2016YFA0203400)

摘　　要：对聚苯胺体系的电荷输运机制、聚苯胺纳米结构与纳米复合结构的磁阻研究现状进行了综述。电荷在聚苯胺体系内通过跳跃方式输运,磁阻现象主要是由量子退相干效应和波函数收缩效应造成。磁阻效应的强弱与体系结构紧密相关,掺杂剂、掺杂程度和氧化剂所引起的结晶性会影响磁阻效应,聚苯胺复合纳米结构内纳米填充物和聚苯胺之间协同作用也会影响磁阻特性。对设计和合成高效聚苯胺磁阻材料具有指导意义。The charge transport mechanism of polyaniline system,magnetoresistance of polyaniline nanostructures and nanocomposite systems were critically reviewed.The charge in the polyaniline system was transported by hopping.The magnetoresistance phenomena of polyaniline nanostructures and nanocomposite systems could be explained by using the quantum decoherence effect and electron wavefunction shrinkage effect.The strength of the magnetoresistance effect closely related to structure of systems.Dopant,doping level and oxidant could affect the magnetoresistance effect by affecting the crystalline characteristics.The synergy effect between nanofiller and polyaniline in the composite structure could also affect magnetic resistance properties.This article could serve as a guideline for design and synthesis of highly efficient polyaniline magnetoresistance materials.

关 键 词：聚苯胺 复合结构 电荷输运 有机磁阻 

分 类 号：TQ584.9[化学工程—精细化工] O649.4[理学—物理化学]