| 低温下单壁碳纳米管拉曼光谱温度效应研究 |
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| 引用本文： | 魏凌,李若平,陈林涛,莫育俊.低温下单壁碳纳米管拉曼光谱温度效应研究[J].光散射学报,2005,17(4):355-358. |
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| 作者姓名： | 魏凌 李若平 陈林涛 莫育俊 |
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| 作者单位： | 1. 河南大学物理与信息光电子学院
2. 河南大学出版社,开封,475001 |
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| 摘 要： | 在单壁碳纳米管的低温拉曼光谱测量过程中,发现径向呼吸模(RBM)和正切拉伸模(GM)的拉曼频移在低温下的温度效应和在高温时的温度效应存在着很大的区别,在低温下拉曼光谱的频移和温度并不呈线性关系。而且,在温度为210K时,单壁碳纳米管内部的振动结构可能发生了变化。在低温下单壁碳纳米管拉曼峰的强度的变化是不可逆的。
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| 关 键 词： | 单壁碳纳米管 拉曼光谱 温度效应 |
| 文章编号： | 1004-5929（2005）04-0355-04 |
| 收稿时间： | 2005-07-18 |
| 修稿时间： | 2005-11-23 |
The Study of Temperature Dependence of Raman Spectra of Single- walled Carbon Nanotubes at Low Temperature |
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| WEI Ling,LI Ruo-ping,CHEN Lin-tao,MO Yu-jun.The Study of Temperature Dependence of Raman Spectra of Single- walled Carbon Nanotubes at Low Temperature[J].Chinese Journal of Light Scattering,2005,17(4):355-358. |
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| Authors: | WEI Ling LI Ruo-ping CHEN Lin-tao MO Yu-jun |
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| Institution: | Henan University, Kaifeng 475001, China |
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| Abstract: | The cryogenic Raman spectra of the single-walled carbon nanotubes(SWNTs)are measured at 632.8nm laser excitation wavelength.The results indicate that the temperature dependence of RBM and GM at low temperature is greatly different from that at high temperature.At low temperature,frequencies of Raman spectra are not a linear relation with temperature.The inner structure of SWNTs is likely to have a variety when the temperature is 210K.The intensity of Raman spectra are not reversible at low temperature. |
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| Keywords: | The single-walled carbon nanotubes Raman spectrum Temperature dependence |
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