Pumping electrons from chemical potential difference

Electric generators can be categorized into four primary groups according to electrification processes: electromagnetic, electrostatic, piezoelectric and triboelectric generators. Electromagnetic generators produce conduction current based on Faraday's law. In contrast, electrostatic, piezoelec...

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Main Authors: Zhang, Qing, Xu, Ran, Cai, Weifan
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2020
Subjects:
Online Access:https://hdl.handle.net/10356/139537
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1395372020-05-20T04:44:24Z Pumping electrons from chemical potential difference Zhang, Qing Xu, Ran Cai, Weifan School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Electric Generator Electron Pump Electric generators can be categorized into four primary groups according to electrification processes: electromagnetic, electrostatic, piezoelectric and triboelectric generators. Electromagnetic generators produce conduction current based on Faraday's law. In contrast, electrostatic, piezoelectric and triboelectric generators create only displacement current internally. In this article, we report on a type of novel electric generators, which can be simply constructed using a pair of semiconducting or/and metallic electrodes with distinct chemical potentials. Electrons can diffuse from the higher into the lower chemical potential electrode when the electrodes are brought in contact and the diffused electrons are then discharged to the external circuit once the two electrodes are separated by mechanical power, accomplishing mechanical-electrical power conversion. In our generators, both displacement current and conduction current are generated. MOE (Min. of Education, S’pore) 2020-05-20T04:44:24Z 2020-05-20T04:44:24Z 2018 Journal Article Zhang, Q., Xu, R., & Cai, W. (2018). Pumping electrons from chemical potential difference. Nano Energy, 51, 698-703. doi:10.1016/j.nanoen.2018.07.016 2211-2855 https://hdl.handle.net/10356/139537 10.1016/j.nanoen.2018.07.016 2-s2.0-85050115061 51 698 703 en Nano Energy © 2018 Elsevier Ltd. All rights reserved.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Electric Generator
Electron Pump
spellingShingle Engineering::Electrical and electronic engineering
Electric Generator
Electron Pump
Zhang, Qing
Xu, Ran
Cai, Weifan
Pumping electrons from chemical potential difference
description Electric generators can be categorized into four primary groups according to electrification processes: electromagnetic, electrostatic, piezoelectric and triboelectric generators. Electromagnetic generators produce conduction current based on Faraday's law. In contrast, electrostatic, piezoelectric and triboelectric generators create only displacement current internally. In this article, we report on a type of novel electric generators, which can be simply constructed using a pair of semiconducting or/and metallic electrodes with distinct chemical potentials. Electrons can diffuse from the higher into the lower chemical potential electrode when the electrodes are brought in contact and the diffused electrons are then discharged to the external circuit once the two electrodes are separated by mechanical power, accomplishing mechanical-electrical power conversion. In our generators, both displacement current and conduction current are generated.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Zhang, Qing
Xu, Ran
Cai, Weifan
format Article
author Zhang, Qing
Xu, Ran
Cai, Weifan
author_sort Zhang, Qing
title Pumping electrons from chemical potential difference
title_short Pumping electrons from chemical potential difference
title_full Pumping electrons from chemical potential difference
title_fullStr Pumping electrons from chemical potential difference
title_full_unstemmed Pumping electrons from chemical potential difference
title_sort pumping electrons from chemical potential difference
publishDate 2020
url https://hdl.handle.net/10356/139537
_version_ 1681058929512022016