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Quantum Theory of Contact Electrification for Fluids and Solids

机译：流体与固体接触带电的量子理论

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摘要

A unified quantum-mechanical model of contact electrification that provides a microscopic basis for the Volta-Helmholtz-Montgomery hypothesis is presented. The model can represent metals, semiconductors, or insulators, in either fluid or solid phase, and with an effective electron transfer parameter as the driving mechanism. Known experimental results such as the charging of similar materials, the charging of similar materials with different contact orientation, the surface charge mosaic, and the higher efficiency of charge transfer for a liquid-solid contact, compared to a solid-solid one, are reproduced. A quantum-mechanical charge oscillation in the femtosecond to picosecond regime is predicted to take place. Coulomb interaction is found to have an impact on not just the charge transferred but also the period of charge oscillation.
机译：提出了统一的接触带电量子力学模型，该模型为Volta-Helmholtz-Montgomery假设提供了微观基础。该模型可以表示流体或固相中的金属，半导体或绝缘体，并具有有效的电子传递参数作为驱动机制。再现了已知的实验结果，例如类似材料的带电，具有不同接触方向的类似材料的带电，表面电荷镶嵌以及与固体-固体接触相比更高的液-固接触电荷转移效率。预计将发生飞秒到皮秒状态的量子机械电荷振荡。发现库仑相互作用不仅影响转移的电荷，而且影响电荷振荡的周期。

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  • 来源
    《Advanced Functional Materials》 |2020年第17期|1910461.1-1910461.8|共8页
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  • 作者单位

    Chinese Acad Sci Beijing Inst Nanoenergy & Nanosyst CAS Ctr Excellence Nanosci Beijing Key Lab Micronano Energy & Sensor Beijing 100083 Peoples R China|Univ Chinese Acad Sci Sch Nanosci & Technol Beijing 100049 Peoples R China|Tech Univ Denmark Dept Photon Engn DK-2800 Lyngby Denmark;

    Univ West Georgia Dept Phys Carrollton GA 30118 USA;

    Chinese Acad Sci Beijing Inst Nanoenergy & Nanosyst CAS Ctr Excellence Nanosci Beijing Key Lab Micronano Energy & Sensor Beijing 100083 Peoples R China|Univ Chinese Acad Sci Sch Nanosci & Technol Beijing 100049 Peoples R China|Georgia Inst Technol Sch Mat Sci & Engn Atlanta GA 30332 USA;

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  • 正文语种 eng
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  • 关键词

    contact electrification; Coulomb effects; quantum-mechanical models; quantum theory;

    机译：接触电气化;库仑效应;量子力学模型;量子理论;

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