1/f Noise in Single-Walled Carbon Nanotube Films

机译：单壁碳纳米管薄膜的1 / f噪声

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We use Monte Carlo simulations and modeling to study the 1/f noise in CNT films as a function of device parameters and film resistivity. We consider noise sources due to both tube-tube junctions and nanotubes themselves. By comparing the simulation results with experimental data, we find that the noise generated by tube-tube junctions dominates the total CNT film 1/f noise. We then systematically study the effect of device length, device width and film thickness on the 1/f noise scaling in CNT films. Our results show that the noise amplitude depends strongly on device dimensions and on the film resistivity, following a power-law relationship near the percolation threshold. Despite its relative simplicity, our computational approach explains the experimentally observed 1/f noise scaling in CNT films. Since 1/f noise is a more sensitive measure of percolation than resistivity, these simulations will help improve the performance of CNT film sensors at the micro-nano interface, where noise is an important figure of merit.

机译：我们使用蒙特卡洛模拟和建模来研究CNT薄膜中的1 / f噪声与器件参数和薄膜电阻率的关系。我们考虑由于管-管结和纳米管本身引起的噪声源。通过将模拟结果与实验数据进行比较，我们发现由管-管结产生的噪声占总CNT膜1 / f噪声的主导。然后，我们系统地研究器件长度，器件宽度和膜厚度对CNT膜中1 / f噪声标度的影响。我们的结果表明，在接近渗透阈值附近的幂律关系之后，噪声幅度很大程度上取决于器件尺寸和薄膜电阻率。尽管它相对简单，但是我们的计算方法还是解释了实验观察到的CNT膜中的1 / f噪声缩放。由于1 / f噪声是比电阻率更敏感的渗滤量度，因此这些仿真将有助于改善微纳界面上的CNT薄膜传感器的性能，在微纳界面上，噪声是重要的品质因数。

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来源
《》|2009年|P.72040J.1-72040J.11|共11页
会议地点 San Jose CA(US)
作者
Ashkan Behnam; Gijs Bosnian; Ant Ural;
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作者单位

Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA 32611;

Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA 32611;

Department of Electrical and Computer Engineering, U;

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会议组织
原文格式 PDF
正文语种 eng
中图分类微电子学、集成电路（IC）;
关键词
single walled carbon nanotube film; 1/f noise; percolation;

机译：单壁碳纳米管薄膜; 1 / f噪声;渗滤;

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1. Temperature-dependent transport and 1/f noise mechanisms in single-walled carbon nanotube films [J] . Ashkan Behnam, Amlan Biswas, Gijs Bosman, Physical review . 2010,第12期

机译：单壁碳纳米管薄膜中的温度依赖性传输和1 / f噪声机理
2. Percolation scaling of 1/f noise in single-walled carbon nanotube films [J] . Ashkan Behnam, Gijs Bosman, Ant Ural Physical review . 2008,第8期

机译：单壁碳纳米管薄膜中1 / f噪声的渗透定标
3. Effects Of Thermal Annealing On Noise Property And Temperature Coefficient Of Resistance Of Single-walled Carbon Nanotube Films [J] . Rongtao Lu, Guowei Xu, Judy Z. Wu Applied Physicsletters . 2008,第21期

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4. 1/fNoise in Single-Walled Carbon Nanotube Films [C] . Ashkan Behnam, Gijs Bosman, Ant Ural SPIE Conference on Micromachining and Microfabrication Process Technology . 2009

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5. Structure-Processing-Property Interrelationships of Vapor Grown Carbon Nanofiber, Single-Walled Carbon Nanotube and Functionalized Single-Walled Carbon Nanotube - Polypropylene Nanocomposites. [D] . Radhakrishnan, Vinod Karumathil. 2010

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6. Selective Deposition and Alignment of Single-Walled Carbon Nanotubes Assisted by Dielectrophoresis: From Thin Films to Individual Nanotubes [O] . Pengfei Li, Wei Xue 2010

机译：介电电泳辅助单壁碳纳米管的选择性沉积和排列：从薄膜到单个纳米管
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机译：介电电泳辅助单壁碳纳米管的选择性沉积和排列：从薄膜到单个纳米管

1/f Noise in Single-Walled Carbon Nanotube Films

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