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From Carbon Nanotube Crystals to Carbon Nanotube Flowers
作者姓名:张政军  赵烨  周雅
作者单位:Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
基金项目:Supported by the National Natural Science Foundation of China (No. 50201008) and the Ministry of Education of China
摘    要:We have investigated the very initial deposition stages of chemical vapor deposition (CVD) with ferrocene (Fe(CsH5)2) and xylene (C8H10) for growing carbon nanotubes, and made clear that the mechanism for the self-organization behaviors of nanotubes at different growth stages by this approach. For instance, the organization of nanotubes into flower-like structures at prolonged deposition is developed from the crystal-like structures formed at early growth stages, both of which are closely related to and determined by the very initial deposition stages of this CVD approach. Based on this approach, ways have been established to build up different architectures of carbon nanotubes, by controlling the initial deposition stages of the CVD process, with which we have realized the selective growth of self-organized carbon nanotube structures. This study provides a new idea for growing carbon nanotube architectures by CVD.

关 键 词:碳纳米管  制备  自组装  化学气相沉积  纳米晶  纳米花
收稿时间:2005-07-11
修稿时间:2005-07-11

From Carbon Nanotube Crystals to Carbon Nanotube Flowers
Zhengjun Zhang,  , Ye Zhao, ,Ya Zhou, &#x; .From Carbon Nanotube Crystals to Carbon Nanotube Flowers[J].Tsinghua Science and Technology,2005,10(6):741-744.
Authors:Zhengjun Zhang     Ye Zhao     Ya Zhou  &#x;
Institution:

Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

Abstract:We have investigated the very initial deposition stages of chemical vapor deposition (CVD) with ferrocene (Fe(C5H5)2) and xylene (C8H10) for growing carbon nanotubes, and made clear that the mecha- nism for the self-organization behaviors of nanotubes at different growth stages by this approach. For in- stance, the organization of nanotubes into flower-like structures at prolonged deposition is developed from the crystal-like structures formed at early growth stages, both of which are closely related to and determined by the very initial deposition stages of this CVD approach. Based on this approach, ways have been estab- lished to build up different architectures of carbon nanotubes, by controlling the initial deposition stages of the CVD process, with which we have realized the selective growth of self-organized carbon nanotube struc- tures. This study provides a new idea for growing carbon nanotube architectures by CVD.
Keywords:carbon nanotubes  self-assembly  chemical vapor deposition (CVD)
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