以BiCl3和Se粉为铋源和硒源,Na2SO3为还原剂,在碱性条件下,采用简单的溶剂热法首次在不同溶剂中均合成了Bi2Se3纳米片.探究了不同反应时间片状纳米晶的定向生长特性.通过X射线粉末衍射 (XRD )仪,扫描电子显微镜 (SEM),X射线能谱仪 (EDS),透射电子显微镜 (TEM) 和高分辨透射电子显微镜 (HRTEM) 等方法对所得产物的物相结构及形貌进行了表征.结果表明在不同溶剂中所得产物均为纯六方相Bi2Se3纳米片,产物的尺寸及形貌随溶剂变化虽有所不同,但总体为片状形貌,并阐明了片状形貌Bi2Se3的形成与其内部特殊的层状结构密切相关.
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