Electrical transport in semiconducting carbon nanotubes

被引:18
作者
Moriyama, S
Toratani, K
Tsuya, D
Suzuki, M
Aoyagi, Y
Ishibashi, K
机构
[1] RIKEN, Inst Phys & Chem Res, Adv Device Lab, Wako, Saitama 3510198, Japan
[2] Tokyo Inst Technol, Interdisciplinary Grad Sch Sci & Technol, Midori Ku, Yokohama, Kanagawa 2268503, Japan
[3] Chiba Univ, Dept Mat Sci, Inage, Chiba 2368522, Japan
[4] Japan Sci & Technol, CREST, Kawagoe, Saitama 3320012, Japan
关键词
semiconducting carbon nanotube; quantum dot; single-wall carbon nanotubes;
D O I
10.1016/j.physe.2004.04.022
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Electrical transport measurements have been carried out for a rope of semiconducting single-wall carbon nantoubes in a temperature range from 2.6 to 200 K. At room temperature, the source drain current decreased as the gate voltage was increased, a p-type carrier behavior. However, as the temperature was decreased in a liquid helium temperature, an irregular Coulomb blockade diamonds have been observed. The temperature dependence of the current at large bias voltage in which Coulomb blockade effect is not important has shown an activated behavior, suggesting the tunnel barrier at the tube-metal junctions. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:46 / 49
页数:4
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