物理化学学报 >> 2008, Vol. 24 >> Issue (01): 157-160.doi: 10.3866/PKU.WHXB20080128

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聚乙烯醇辅助合成CdS纳米线及其表征

盖红德; 吴佑实; 吴莉莉; 石元昌; 井敏; 邹科   

  1. 山东大学材料科学与工程学院, 济南 250061
  • 收稿日期:2007-07-24 修回日期:2007-10-15 发布日期:2008-01-05
  • 通讯作者: 吴佑实 E-mail:wysh@163.com

PVA-Assisted Synthesis and Characterization of CdS Nanowires

GAI Hong-De; WU You-Shi; WU Li-Li; SHI Yuan-Chang; JING Min; ZOU Ke   

  1. College of Materials Science and Engineering, Shandong University, Jinan 250061, P. R. China
  • Received:2007-07-24 Revised:2007-10-15 Published:2008-01-05
  • Contact: WU You-Shi E-mail:wysh@163.com

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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70 nm, 长约10 μm, 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.

关键词: 硫化镉, 溶剂热法, 纳米线, 聚乙烯醇

Abstract: CdS nanowires were successfully synthesized via a solvothermal 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 nmand length up to 10 μm, had a preferential growth direction of [001] and showed a quantumconfinement effect. Based on the results of comparative experiments, a PVA-assisted growth mechanismwas proposed.

Key words: Cadmiumsulfide, Solvothermal route, Nanowires, PVA