Polymer electrets and their applications

Polymer electrets have revealed great potential application in electromechanical devices because of the low weight, large quasi‐piezoelectric sensitivity, and excellent flexibility. For an electret, a permanent and macroscopic electric field exists on the surface, principally led by a macroscopic el...

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Bibliographic Details
Published in:Journal of applied polymer science 2021-05, Vol.138 (19), p.n/a
Main Authors: Li, Xin, Wang, Yurui, Xu, Minxuan, Shi, Yueqin, Wang, Hemiao, Yang, Xin, Ying, Haoting, Zhang, Qi
Format: Article
Language:English
Subjects:
applications
Electrets
Electric contacts
Electric fields
Electromechanical devices
Electrostatic charge
Energy harvesting
Field effect transistors
Fluorine
Materials science
Particle beams
Piezoelectricity
Polymers
Semiconductor devices
synthesis and processing techniques
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Summary:Polymer electrets have revealed great potential application in electromechanical devices because of the low weight, large quasi‐piezoelectric sensitivity, and excellent flexibility. For an electret, a permanent and macroscopic electric field exists on the surface, principally led by a macroscopic electrostatic charge on the surface or a net orientation of polar groups inside the object. Here, progress in the development of polymer electrets is reviewed. After a brief retrospect of the research courses and those typical polymer electrets that are classified into fluorine polymer and nonfluorine polymer, we present a survey on the charging methods, including corona, soft X‐ray, contact, thermal and monoenergetic particle beams. The latest representative applications (i.e., power harvesting, sensors, field effect transistors, and biomedicine) based on polymer electrets are also summarized. Finally, we complete this review with a discussion on perspectives and challenges in this field. Progress in the development of polymer electrets is reviewed. After a brief retrospect of the research courses and those typical polymer electrets that are classified into fluorine polymer and non‐fluorine polymer, we present a survey on the charging methods, including corona, soft X‐ray, contact, thermal and monoenergetic particle beams. The latest representative applications (i.e. power harvesting, sensors, field effect transistors, and biomedicine) based on polymer electrets are also summarized.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.50406