Observation of single-wall carbon nanotube rings by scanning tunneling microscopy and spectroscopy

被引：9
作者：
Zha, FX
Bertsche, G
Croitoru, M
Kentsch, C
Roth, S
Kern, DP
机构：
[1] Univ Tubingen, Inst Angew Phys, D-72076 Tubingen, Germany
[2] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
来源：
CARBON | 2004年 / 42卷 / 04期
关键词：
carbon nanotubes; scanning tunneling microscopy; electrical properties;
D O I：
10.1016/j.carbon.2004.01.068
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The single-wall carbon nanotube (SWCNT) rings were observed by scanning tunneling microscopy and spectroscopy (STM/S). The raw SWCNT was synthesized by arc-discharge method and were ultrasonically dispersed in lithium-dodecylsulfate (LDS) and purified with a crntrifuge. The location-dependent electronic feature of the ring in terms of their formation mechanism was also studied. It was observed that a proto-ring was generated from an individual nanotube by the ultrasonic irradiation and could grow further to thicker ring structure by attachment of other single-wall carbon nanotube pieces or ropes.
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收藏
页码：893 / 895
页数：3
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