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高温下单壁碳纳米管的拉曼光谱研究 被引量:3

The Raman Research of Single Wall Carbon Nanotubes at High Temperature
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摘要 本文采用对样品进行直接加热和测温的方法,对单壁碳纳米管(SWNT)高温下的拉曼光谱进行了研究。在不同的激发波长下,观测了SWNT拉曼光谱的切向振动模频率随温度的变化,发现其频率随温度增加而降低,基本呈线性变化,温度系数约-0.014cm-1/K。不同的激发波长下,切向振动模频率随温度的变化行为基本一致。 In this paper, we have studied the Raman spectra of single wall carbon nanotubes (SWNT) under high temperature using resistance heat method. We found the vibrational frequency corresponding to the tangential vibration mode (GM) of SWNT would downshift when the temperature of samples increased. The shift of Raman frequencies is linear. The temperature coefficient is about -0.014 cm-1/K, and this number is almost the same when the laser wavelength is changed.
出处 《光散射学报》 2003年第3期166-169,共4页 The Journal of Light Scattering
基金 基础研究重大项目前期研究专项项目(2001CCA05000) 天南大共建项目纳米专项
关键词 高温 单壁碳纳米管 拉曼光谱 温度效应 single wall carbon nanotube Raman spectrum temperature effect
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参考文献8

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共引文献5

同被引文献39

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