聚乙烯醇辅助合成CdS纳米线及其表征  

PVA-Assisted Synthesis and Characterization of CdS Nanowires

作　　者：盖红德[1] 吴佑实[1] 吴莉莉[1] 石元昌[1] 井敏[1] 邹科[1] 

机构地区：[1]山东大学材料科学与工程学院,济南250061

出　　处：《物理化学学报》2008年第1期157-160,共4页Acta Physico-Chimica Sinica

基　　金：山东省自然科学基金(Y2005B10);山东省优秀中青年科学家奖励基金(2006BS04008)资助项目

摘　　要：以聚乙烯醇为辅助剂,使用溶剂热法成功制备CdS纳米线,并用XRD、TEM、HRTEM、UV-Vis和PL(荧光)发射谱等方法对样品进行表征.结果表明,该法制备的CdS纳米线为六方纤锌矿结构,直径为70nm,长约10μm,沿[001]晶向择优生长,具有量子禁域效应.同时,根据对比实验结果提出了CdS纳米线的聚合物辅助生长机理.CdS nanowires were successfully synthesized via a solvotherrnal route with the assistance of poly（vinyl alcohol） （PVA）. The prepared sample was characterized by XRD, TEM, HRTEM, UV-Vis, and PL（photoluminescence） emission spectrum. The results indicated that the wurtzite CdS nanowires, with typical diameter of 70 nm and length up to 10 μm, had a preferential growth direction of [001] and showed a quantum confinement effect. Based on the results of comparative experiments, a PVA-assisted growth mechanism was proposed.

关 键 词：硫化镉 溶剂热法 纳米线 聚乙烯醇 

分 类 号：TB383.1[一般工业技术—材料科学与工程]