无机材料学报 ›› 2010, Vol. 25 ›› Issue (6): 664-668.DOI: 10.3724/SP.J.1077.2010.00664 CSTR: 32189.14.SP.J.1077.2010.00664

• 研究论文 • 上一篇    下一篇

Te纳米线模板法加工Bi2Te3-Te片式棒热电材料

邓 元, 李 娜, 王 瑶, 杨 萌   

  1. (特种功能材料与薄膜技术北京市重点实验室, 北京航空航天大学 化学与环境学院, 北京 100191)
  • 收稿日期:2009-10-14 修回日期:2009-12-10 出版日期:2010-06-20 网络出版日期:2010-05-12

In-situ Fabrication of Bi2Te3-Te Sheet-rods Using Te Nanowires as Template

DENG Yuan, LI Na, WANG Yao, YANG Meng   

  1. (Beijing Key Laboratory for Advanced Functional Materials and Thin Film Technology, School of Chemistry and Environment, Beihang University, Beijing 100191, China)
  • Received:2009-10-14 Revised:2009-12-10 Published:2010-06-20 Online:2010-05-12
  • Supported by:

    National Technology Research and Development Program (863,2009AA03Z322); National Natural Science Foundation of China (50772005); Beijing Science and Technology Thematic Program (Z08000303220808)

摘要: 以碲纳米线为模板,采用简便的回流法大规模合成了Bi2Te3-Te片式棒一维材料, 产量达到90%. 利用X射线衍射、扫描电镜、X射线能谱、透射电镜对样品进行了分析. 系统的研究了KOH、EDTA以及反应时间对产物结构的影响, 提出了这种异质结构的形成机制. 本制备方法可以推广到合成其它金属和半导体的一维特殊纳米结构.

关键词: 纳米线, 回流法, Bi2Te3-Te, 模板法

Abstract: One-dimensional semiconductor materials Bi2Te3-Te nanocomposites, with a sheet-rod nanostructure can be fabrication on a large scale using Te nanowires as the in-situ template under a simple reflux process, and the yield is high up to 90%. The product was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray spectroscope (EDS) and transmission electron microscope (TEM). It is a promising way to fabricate one-dimensional nanocrystals of other metals and semiconductors. The influence of KOH, EDTA and reaction time are discussed. The formation mechanism of such a heterostructure is also proposed.

Key words: nanowires, reflux process, Bi2Te3-Te, template synthesis

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