通过水热法以Na2 TeO3为Te源和SDBS为表面活性剂在不同反应温度和反应时间下合成了半导体材料Bi2Te3的一维纳米线粉体.纳米线粉体通过XRD衍射仪分析物相,扫描电镜分析其表面形貌.分析结果表明反应温度和反应时间对Bi2Te3的纯度和表面形貌均有很大的影响.最佳的反应条件为反应温度150℃,反应时间为24小时.在此条件下制备的Bi2 Te3纳米线的长度为500～1000nm左右,直径仅为30～50nm.同时也对不同形貌Bi2Te3晶体的成核和生长机理进行了研究.
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