期刊
APPLIED PHYSICS LETTERS
卷 93, 期 12, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.2985899
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资金
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) [18GS0203]
- Grants-in-Aid for Scientific Research [18GS0203] Funding Source: KAKEN
Most of the countercharge in the conventional electret-based electromechanical transducer, where the electret is formed on a conducting or semiconducting substrate, is induced in the substrate. Here we introduce a type of electret transducer that contains a freestanding electret without a conducting substrate, thereby enhancing the electric field between the electret and the electrodes where the output current is generated. A measurement of the power output from an electromechanical transducer yielded approximately five times larger power when a freestanding electret film was used than when the same electret material was deposited on a conducting substrate. (C) 2008 American Institute of Physics.
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