Improving an electret transducer by fully utilizing the implanted charge

Hiroshi Okamoto; Teppei Onuki; Hiroki Kuwano

doi:10.1063/1.2985899

Improving an electret transducer by fully utilizing the implanted charge

Hiroshi Okamoto, Teppei Onuki, Hiroki Kuwano

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

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.

Original language	English
Article number	122901
Journal	Applied Physics Letters
Volume	93
Issue number	12
DOIs	https://doi.org/10.1063/1.2985899
Publication status	Published - 2008

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2985899

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abstract = "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.",

author = "Hiroshi Okamoto and Teppei Onuki and Hiroki Kuwano",

note = "Funding Information: We thank Dr. Takashi Genda and Professor Shuji Tanaka for kindly lending their homemade corona triode to us, and to Mr. Takafumi Suzuki and Mr. Kazuhiro Mori for experimental assistance. This work was conducted under the project “Research of a nano-energy system creation” (No. 18GS0203), funded by the Ministry of Education, Culture, Sports, Science and Technology (MEXT).",

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AU - Okamoto, Hiroshi

AU - Onuki, Teppei

AU - Kuwano, Hiroki

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PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

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Improving an electret transducer by fully utilizing the implanted charge

Abstract

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