| 纳米碳管的非线性热电传输 |
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| 引用本文： | 万浪辉,王斌,卫亚东.纳米碳管的非线性热电传输[J].深圳大学学报(理工版),2009,26(4). |
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| 作者姓名： | 万浪辉 王斌 卫亚东 |
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| 作者单位： | 1. 深圳大学物理科学与技术学院,深圳,518060
2. 香港大学物理系,香港 |
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| 基金项目： | 国家自然科学基金资助项目，深圳大学科研基金资助项目 |
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| 摘 要： | 利用Landauer-Büttiker公式对金属导线/单臂纳米碳管/金属导线结构的热电传输进行理论计算.在有限温度梯度下,利用迭代法计算非线性热电势和热电导,研究表明,热电势和热电导与系统电子的传输行为密切相关,热电势随系统化学势的变化而振荡,且可为正也可为负值,这种行为完全依赖于电子电导的变化.研究结果对分子器件热传输的实际应用有意义.
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| 关 键 词： | 热电势 热电导 电子传输 纳米碳管 Landauer-Büttiker公式 Landauer-Büttiker formula |
Nonlinear thermoelectric transport of carbon nanotube |
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| WAN Lang-hui,WANG Bin,WEI Ya-dong.Nonlinear thermoelectric transport of carbon nanotube[J].Journal of Shenzhen University(Science &engineering),2009,26(4). |
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| Authors: | WAN Lang-hui WANG Bin WEI Ya-dong |
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| Abstract: | The thermal transport of a single-walled metallic carbon nanotube connected by two metallic leads was studied with Landauer-Büttiker formula.The thermoelectric power and thermal conductance in nonlinear regime with a temperature gradient were calculated.The thermoelectric power and thermal conductance are closely related to system transport behavior.The thermoelectric power oscillates with chemical potential,can be either negative or positive.These results allow us to expect that thermal transport properties of molecular devices have much to offer for practical applications. |
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| Keywords: | thermoelectric power thermal conductance electron transport carbon nanotube |
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