Zn_(1-X)Cd_XS三元纳米线的制备及生长机理Preparation and Formation Mechanism of Ternary Zn_(1-x)Cd_xS Nanowire
邹华,吴荣,孙言飞,郑毓峰,简基康
摘要(Abstract):
本文以CdS和ZnS粉末作为前驱物,采用化学气相沉积(CVD)法在1100条件下,以金膜为催化剂在硅衬底上一步合成了Zn1-XCdXS三元纳米线.扫描电镜(SEM)测试表明合成的Zn1-XCdXS晶体具有线状的微观形貌;X射线衍射(XRD)图谱显示产物是六方铅锌矿Zn0.2Cd0.8S;X射线能量色散谱(EDX)给出了Zn和Cd和S的比例为0.1:0.7:1.产物Zn1-XCdXS纳米线的生长机理为气-液-固(VLS)机制,物相形成机制为替位式化合机制,即Zn离子取代CdS中Cd离子化合成三元物相.
关键词(KeyWords): Zn1-XCdXS;化学气相沉积;纳米线;生长机理
基金项目(Foundation): 新疆大学博士启动基金资助项目(No.BS060110)
作者(Author): 邹华,吴荣,孙言飞,郑毓峰,简基康
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