Fabrication of crystalline selenium microwire  

作　　者：彭帅 唐国武 孙敏 刘旺旺 单秀杰 钱奇 陈东丹 张勤远 杨中民 

机构地区：[1]State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials,South China University of Technology,Guangzhou 510640,China [2]Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices,South China University of Technology,Guangzhou 510640,China [3]Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques,South China University of Technology,Guangzhou 510640,China

出　　处：《Chinese Physics B》2017年第4期472-475,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation for Distinguished Young Scientists,China(Grant No.61325024);the High-Level Personnel Special Support Program of Guangdong Province,China(Grant No.2014TX01C087);the Fundamental Research Funds for the Central Universities,China(Grant No.2015ZP019);the National High Technology and Development Program of China(Grant Nos.2013AA031502 and 2014AA041902);the National Natural Science Foundation of China(Grant Nos.51472088,61535014,and 51302086);the Fund of Guangdong Provincial Cooperation of Producing,Studying and Researching,China(Grant No.2012B091100140)

摘　　要：A method of fabricating selenium（Se） microwire is demonstrated.A multimaterial fiber with amorphous selenium（a-Se） core and multicomponent phosphate glass cladding is drawn by using a conventional optical fiber drawing technique.Then the a-Se core of the fiber is crystallized by a post thermal process at 150 ℃.After the multicomponent phosphate glass cladding is stripped from the multimaterial fiber by marinating the fiber in HF acid solution,a crystalline selenium（c-Se）microwire with high uniformity and smooth surface is obtained.Based on microstructure measurements,the c-Se microwire is identified to consist of most hexagonal state particles and very few trigonal state whiskers.The good photoconduction property of c-Se microwire with high quality and longer continuous length makes it possible to apply to functional devices and arrays.A method of fabricating selenium（Se） microwire is demonstrated.A multimaterial fiber with amorphous selenium（a-Se） core and multicomponent phosphate glass cladding is drawn by using a conventional optical fiber drawing technique.Then the a-Se core of the fiber is crystallized by a post thermal process at 150 ℃.After the multicomponent phosphate glass cladding is stripped from the multimaterial fiber by marinating the fiber in HF acid solution,a crystalline selenium（c-Se）microwire with high uniformity and smooth surface is obtained.Based on microstructure measurements,the c-Se microwire is identified to consist of most hexagonal state particles and very few trigonal state whiskers.The good photoconduction property of c-Se microwire with high quality and longer continuous length makes it possible to apply to functional devices and arrays.

关 键 词：selenium semiconductor crystalline microwires optical fiber technology photoconductivity ma-terials 

分 类 号：TQ125.2[化学工程—无机化工]