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Single wall carbon nanotubes and their electrical properties

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【作者】 薛增泉； 刘惟敏； 侯士敏； 施祖进； 顾镇南； 刘虹雯； 赵兴钰； 张兆祥； 吴绵雷； 彭练矛； 吴全德；

【Author】 XUE Zengquan SHI Zujin ZHAO Xingyu WU Mianlei LIU Weimin GU Zhennan ZHANG Zhaoxiang PENG Lianmao HOU Shimin LIU Hongwen & WU QuandeDepartment of Electronics, Peking University, Beijing 100871, China;College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China Correspondence should be addressed to Xue Zengquan

【机构】 Department of Electronics； Peking University； Beijing 100871； China； College of Chemistry and Molecular Engineering； China；

【摘要】 <正> Single-wall carbon nanotubes (SWCNTs) were synthesized and purified. A water colloid of SWCNTs was prepared and used to assemble SWCNTs onto a gold film surface. Scanning tunneling microscopy (STM) images showed that short SWCNTs stood on gold film surfaces. Using STM tips made of SWCNTs, a crystal grain image of a gold thin film and an atomic resolution image of highly oriented pyrolytic graphite were successfully obtained. The electrical properties of short SWCNTs, which stood on the surface of gold film, were measured using STM. That SWCNTs stand on gold thin films is a promising technique for studying structures and properties of carbon nanotubes, as well as assembling and fabricating high-intensity coherent electron sources, field emission flat panel display, tips for scanning probe microscopes, new nanoelectronic devices, etc.

【Abstract】 Single-wall carbon nanotubes (SWCNTs) were synthesized and purified. A water colloid of SWCNTs was prepared and used to assemble SWCNTs onto a gold film surface. Scanning tunneling microscopy (STM) images showed that short SWCNTs stood on gold film surfaces. Using STM tips made of SWCNTs, a crystal grain image of a gold thin film and an atomic resolution image of highly oriented pyrolytic graphite were successfully obtained. The electrical properties of short SWCNTs, which stood on the surface of gold film, were measured using STM. That SWCNTs stand on gold thin films is a promising technique for studying structures and properties of carbon nanotubes, as well as assembling and fabricating high-intensity coherent electron sources, field emission flat panel display, tips for scanning probe microscopes, new nanoelectronic devices, etc.

【关键词】 carbon nanotubes； tips for scanning probe microscopes； field emission pattern； electrical properties parallel to the axis of SWCNTs.；
【Key words】 carbon nanotubes； tips for scanning probe microscopes； field emission pattern； electrical properties parallel to the axis of SWCNTs.；
  • 【文献出处】 Science in China,Ser.A ,中国科学A辑(英文版) , 编辑部邮箱 ,2000年11期
  • 【分类号】O488
  • 【下载频次】56
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