ZnSe亚微米管的制备及形成机制  

Synthesis and growth mechanism of ZnSe submicro-tubes

作　　者：刘长友[1] 王金芳[1] 孙晓燕[1] 介万奇[1] 

机构地区：[1]西北工业大学材料学院凝固技术国家重点实验室,西安710072

出　　处：《功能材料》2014年第12期12128-12131,共4页Journal of Functional Materials

基　　金：西北工业大学基础研究基金资助项目(JC20110247);凝固技术国家重点实验室自主课题资助项目(74-QP-2011)

摘　　要：采用牺牲Zn基片上ZnO纳米柱模板技术,以三乙醇胺（TEA）为溶剂,以HSe-离子为硒源,在150℃恒温8h制备了ZnSe亚微米管。采用FESEM、EDS、XRD、TEM及SAED手段对样品的形貌、结构及成分进行了表征。结果表明,多晶管状ZnSe的直径为150nm左右,且具有封口、规则开口、不规则开口以及呈半管状,管壁由直径约30～40nm左右的颗粒组成。据此形貌特征,依负离子多面体生长基元模型,分析了ZnSe亚微米管的形成机制。Polycrystalline ZnSe submicro-tubes on the zinc substrate were fabricated via the sacrificial zinc oxide temple route in HSe-ion solution of TEA at 150℃ for 8h.The structures and morphologies of as-synthesized samples were characterized by FE-SEM,EDS,XRD,TEM and SAED.The average diameter of ZnSe tubes was 100-150nm with the closed ends,the regular open ends,irregular open ends,and even the semi-tube ends.The wall of submicro-tubes consists of the particles with the diameter of 30-40nm.According to the growth unit model of anion coordination polyhedron,the formation mechanism of ZnSe submicro-tubes was suggested.

关 键 词：硒化锌 生长机理 牺牲模板法 氧化锌 

分 类 号：O611.4[理学—无机化学] O614.24[理学—化学]