物理化学学报 >> 2008, Vol. 24 >> Issue (02): 193-196.doi: 10.1016/S1872-1508(08)60008-X

研究论文 上一篇    下一篇

大长径比ZnS纳米线的制备、结构和生长机理

邓战强; 齐俊杰; 张跃; 廖庆亮; 黄运华; 曹佳伟   

  1. 北京科技大学材料物理与化学系, 北京 100083; 北京科技大学新金属材料国家重点实验室, 北京 100083
  • 收稿日期:2007-08-16 修回日期:2007-10-29 发布日期:2008-01-26
  • 通讯作者: 张跃 E-mail:yuezhang@ustb.edu.cn

Synthesis, Structure and Growth Mechanism of ZnS Nanowires with High Aspect Ratio

DENG Zhan-Qiang; QI Jun-Jie; ZHANG Yue; LIAO Qing-Liang; HUANG Yun-Hua; CAO Jia-Wei   

  1. Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, P. R. China; State Key Laboratory for AdvancedMetals andMaterials, University of Science and Technology Beijing, Beijing 100083, P. R. China
  • Received:2007-08-16 Revised:2007-10-29 Published:2008-01-26
  • Contact: ZHANG Yue E-mail:yuezhang@ustb.edu.cn

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摘要： 通过碳热辅助化学气相沉积法, 以Au作为催化剂, 在较低温度(800 益)制备了ZnS纳米线, 其尺寸均匀, 表面光滑, 直径约为40 nm, 具有很大的长径比, 是典型的单晶纤锌矿六方结构. 高分辨透射电镜和选区电子衍射分析表明, 纳米线的生长方向为[1100], 与已报道的生长方向不同. 纳米线的生长是由气-液-固(vapor-liquid-solid)机理控制的.

关键词: ZnS, 纳米线, 制备, 结构, 生长机理

Abstract: ZnS nanowires were successfully synthesized through the direct reaction of Zn and S vapor via carbon-assisted chemical evaporation deposition method with Au catalyst. The investigations indicated that the size of ZnS nanowires with a diameter of approximately 40 nm was uniform along the axis of the wire and the surfaces were slick. The ZnS nanowire with a hexagonal wurtzite structure was a typical single crystalline structure. HRTEM and SEAD results demonstrated that the nanowire grew along [1100] direction, which was different from the common direction reported in literatures. The growth of nanowires was controlled by vapor-liquid-solid (VLS) mechanism.

Key words: ZnS, Nanowire, Synthesis, Structure, Growth mechanism

MSC2000: 

  • O643