碳纳米管在高压下的电学性质与状态方程

鲍忠兴; 成会明; 白朔; 李峰; 候鹏翔; 柳翠霞

doi:10.11858/gywlxb.2002.01.007

碳纳米管在高压下的电学性质与状态方程

doi: 10.11858/gywlxb.2002.01.007

鲍忠兴^1,4,,
成会明^2,3,
白朔²,
李峰²,
候鹏翔²,
柳翠霞¹

1.
中国科学院物理研究所，北京 100080；
2.
中国科学院金属研究所，辽宁沈阳 110015；
3.
沈阳材料科学国家联合实验室，辽宁沈阳 110016；
4.
中国科学院国际材料物理中心，辽宁沈阳 110015

详细信息

通讯作者:
鲍忠兴

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出版历程
- 收稿日期: 2001-08-28
- 修回日期: 2001-08-28
- 发布日期: 2002-03-05

Electrical Property and Equations of State in Carbon Nanotubes at High Pressure

1.
Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China;
2.
Institute of Metal, Shenyang 110015, China;
3.
Shenyang National Laboratory for Materials, Shenyang 110016, China;
4.
International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110015, China

More Information

Corresponding author: BAO Zhong-Xing

摘要

摘要: 在金刚石压砧装置上，采用电阻测量方法研究了多层碳纳米管在室温下、23 GPa内的电阻与压力的关系。实验结果表明，在1.5～4.6 GPa内，电阻急剧减小，而在5.7 GPa左右，电阻出现一个极大值。这些变化与碳纳米管的结构、形状和层间距离的变化有关。同时，还在活塞-圆筒式p-V关系测量装置上首次研究了多层碳纳米管在室温下、4.5 GPa内的p-V关系，给出了它在第一次和第七次压缩时的状态方程。
- 碳纳米管 /
- 电阻 /
- 状态方程
Abstract: The resistance-pressure relationship for multi-wall carbon nanotubes at room temperature and up to 23 GPa was studied in a diamond anvil cell using resistance measurement. The experimental results show that the resistance decreases sharply with pressure in 1.5～4.6 GPa, and exhibits a maximum value at about 5.7 GPa, which concerns the changes of the structure, shape and inter layer distance of carbon nanotubes. In the present work, the p-V relationships for multi-wall carbon nanotubes at room temperature at pressures up to 4.5 GPa were first studied using the piston-cylinder type measurement device for the p-V relationship. Its equations of state at first and seventh time compression were given.
- carbon nanotubes /
- resistance /
- equation of state

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参考文献(15)

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