Low-Temperature Magnetoresistanee Studies on Composite Films of Conducting Polymer and Multiwalled Carbon Nanotubes

Y. Z. Long; Z. H. Yin; Z. J. Chen

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Low-Temperature Magnetoresistanee Studies on Composite Films of Conducting Polymer and Multiwalled Carbon Nanotubes

机译：导电聚合物和多壁碳纳米管复合膜的低温磁阻研究

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We report on low-temperature electrical conductivity and magnetoresistanee (MR) measurements on composite films of conducting polyaniline (PANI) and multiwalled carbon nanotubes (CNT). The conductivity below 150 K follows Mott's variable-range-hopping model in three dimensions. The MR of the CNT/PANI composite films is strongly dependent on temperature, magnetic field, and CNT loading. Evident transition from negative to positive MR was observed with lowering temperature, increasing magnetic field, or decreasing CNT loading. The positive and negative MR is discussed in terms of a wave function-shrinkage effect and a quantum interference effect on hopping conduction.

机译：我们报告了导电聚苯胺（PANI）和多壁碳纳米管（CNT）的复合膜的低温电导率和磁阻（MR）测量。 150 K以下的电导率在三个维度上遵循Mott的变程跳跃模型。 CNT / PANI复合膜的MR强烈依赖于温度，磁场和CNT负载。在降低温度，增加磁场或降低CNT负载的情况下，观察到了从负MR到正MR的明显转变。从波函数收缩效应和跳变传导的量子干涉效应两方面讨论了正负磁阻。

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《The journal of physical chemistry, C. Nanomaterials and interfaces》 |2008年第30期|共6页
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Y. Z. Long; Z. H. Yin; Z. J. Chen;
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正文语种 eng
中图分类特种结构材料;表面现象的物理化学;
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1. Low-Temperature Magnetoresistanee Studies on Composite Films of Conducting Polymer and Multiwalled Carbon Nanotubes [J] . Y. Z. Long, Z. H. Yin, Z. J. Chen The journal of physical chemistry, C. Nanomaterials and interfaces . 2008,第30期

机译：导电聚合物和多壁碳纳米管复合膜的低温磁阻研究
2. A lactate biosensor based on lactate dehydrogenaseictotinamide adenine dinucleotide (oxidized form) immobilized on a conducting polymer/multiwall carbon nanotube composite film [J] . Rahman MM, Shiddiky MJA, Rahman MA, Analytical Biochemistry: An International Journal of Analytical and Preparative Methods . 2009,第1期

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3. Characterization and preparation of new multiwall carbon nanotube/conducting polymer composites by in situ polymerization [J] . Showkat AM, Lee KP, Gopalan AI, Journal of Applied Polymer Science . 2006,第6期

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4. Influence of stress on the field emission properties of amorphous carbon thin films and multiwall carbon nanotube-polymer composites [C] . Poa, C.H.P., Lacerda, . 2004

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5. Creation and Evaluation of Polymer/Multiwall Carbon Nanotube Films for Structural Vibration Control and Strain Sensing Properties [D] . Lin, Weiwei. 2016

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6. Further Enhancement of Mechanical Properties of Conducting Rubber Composites Based on Multiwalled Carbon Nanotubes and Nitrile Rubber by Solvent Treatment [O] . Pasi Keinänen, Amit Das, Jyrki Vuorinen 2018

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7. Influence of stress on the field emission properties of amorphous carbon thin films and multiwall carbon nanotube-polymer composites [O] . Poa CHP, Lacerda RG, Silva SRP, 2004

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Low-Temperature Magnetoresistanee Studies on Composite Films of Conducting Polymer and Multiwalled Carbon Nanotubes

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