单分散硫化铜纳米晶的生长及调控  

Controllable Synthesis of Monodisperse CuS Nanocrystals

作　　者：张懿强[1] 张辉[1] 于敬学[1] 杨德仁[1] 阙端麟[1] 

机构地区：[1]硅材料国家重点实验室浙江大学材料科学与工程系,浙江杭州310027

出　　处：《材料科学与工程学报》2008年第2期208-212,共5页Journal of Materials Science and Engineering

基　　金：国家杰出青年基金资助项目(60225010)

摘　　要：以氯化铜、油胺和硫粉为反应物,利用热注入化学反应制备单分散硫化铜纳米晶。通过加入其它表面活性剂可以对纳米晶的尺寸,形貌和稳定性进行调控。这些表面活性剂包括苄胺、油酸、硬脂酸、十二烷基硫醇、三辛基氧化膦和烷基胺等。在一定条件下硫化铜纳米晶还可以自组装为蛇状纳米结构和玉米棒状纳米结构。最后利用X射线衍射仪、透射电镜和高分辨透射电镜对硫化铜纳米晶的结构和形貌进行了表征。Monodisperse CuS nanocrystals were prepared by the hot-injection chemical reaction method using copper chloride, sulfur and oleylamine as reactants. The size, shape and stability of CuS nanocrystals were tuned by the addition of other surfactants including benzylamine, oleic acid, stearic acid, dodecanethiol, tri-octylphosphine oxide and alkylamines with C8〈R〈C16〈C8 being a 8-carbon chain）. Furthermore, the as-synthesized CuS nanocrystals can be self-assembled into snakelike or cornlike nanostructures under the control of some conditions. Finally, the morphology and structure of the CuS nanocrystals were characterized by X-ray diffraction （XRD）, transmission electron microscopy （TEM） and high-resolution transmission electron microscopy （HRTEM）.

关 键 词：高温化学反应 单分散硫化铜纳米晶 表面活性剂 

分 类 号：TN304.2[电子电信—物理电子学]