Electrical and optical properties of indium tin oxide/epoxy composite film  

作　　者：郭霞 郭春威 陈宇 苏治平 

机构地区：[1]Photonic Device Research Lab,Beijing University of Technology

出　　处：《Chinese Physics B》2014年第7期601-604,共4页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.61222501 and 61335004)

摘　　要：The electrical and optical properties of the indium tin oxide （ITO）/epoxy composite exhibit dramatic variations as functions of the ITO composition and ITO particle size. Sharp increases in the conductivity in the vicinity of a critical volume fraction have been found within the framework of percolation theory. A conductive and insulating transition model is extracted by the ITO particle network in the SEM image, and verified by the resistivity dependence on the temperature. The dependence of the optical transmittance on the particle size was studied. Further decreasing the ITO particle size could further improve the percolation threshold and light transparency of the composite film.The electrical and optical properties of the indium tin oxide （ITO）/epoxy composite exhibit dramatic variations as functions of the ITO composition and ITO particle size. Sharp increases in the conductivity in the vicinity of a critical volume fraction have been found within the framework of percolation theory. A conductive and insulating transition model is extracted by the ITO particle network in the SEM image, and verified by the resistivity dependence on the temperature. The dependence of the optical transmittance on the particle size was studied. Further decreasing the ITO particle size could further improve the percolation threshold and light transparency of the composite film.

关 键 词：percolation effect indium tin oxide/epoxy composite film electrical state transition optical transmittance 

分 类 号：O484.4[理学—固体物理]