室温反应合成ZnSe粉体工艺研究  

Process for Reaction Synthesis of ZnSe Powders at Room Temperature

作　　者：刘长友[1] 孙晓燕[1] 王涛[1] 查钢强[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：《材料导报》2012年第2期10-13,共4页Materials Reports

基　　金：国家科技部973计划(2011CB610406);凝固技术国家重点实验室自主课题(74-QP-2011);西北工业大学基础研究基金(JC20110247)

摘　　要：室内自然环境下在三乙醇胺(Triethanolamine,TEA)中利用硼氢化钾(KBH4)固相还原单质硒(Se),获得了稳定的硒氢酸根离子(HSe-)。在TEA中通过HSe-与ZnSO4.7H2O反应制备了橙黄色中间体。有机元素分析、全谱直读等离子体发射光谱(ICP)分析、红外光谱和紫外-可见光谱等测试结果表明,中间体由无机化合物组成。采用中间体分解、碱中和和二次还原工艺分别获得了初级、纯化和单相的ZnSe粉体。XRD和HRTEM测试结果表明,所制ZnSe粉体具有闪锌矿结构。室温荧光光谱测试结果显示样品在470nm和500nm具有强的荧光发射。The air-stable HSe- ion was prepared by solid-state reducing element Se using KBH4 in triethanolamine（TEA） at ambient temperature. The orange precursor or intermediate was obtained by the reaction between HSe ion and ZnSO4·7H2O in TEA. The results of organic elemental analysis, ICP analysis, IR and UV-Vis spectra indicate that the intermediate is consist of inorganic compounds. The primary, refined and pure ZnSe powders were synthesized by ambient decomposition of intermediate, neutralization reaction and rereduction, respectively. The XRD and HRTEM results show that the as-synthesized ZnSe powders are cubic zinc blende structure. Room temperature PL spectrum of as-synthesized sample shows strong emissions at wavelengths of 470nm and 500nm.

关 键 词：硒化锌 室温反应 固相还原 

分 类 号：O613.52[理学—无机化学] O614.24[理学—化学]