Improving an electret transducer by fully utilizing the implanted charge

被引：20

作者：

Okamoto, Hiroshi ^{[1
]}

Onuki, Teppei ^{[1
]}

Kuwano, Hiroki ^{[1
]}

机构：

[1] Tohoku Univ, Dept Nanomech, Sendai, Miyagi 9808579, Japan

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 12期

关键词：

D O I：

10.1063/1.2985899

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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.

引用

页数：3

共 15 条

[1]

Boland J, 2003, PROC IEEE MICR ELECT, P538

[2]

On the permanent electret [J].

Eguchi, M .

PHILOSOPHICAL MAGAZINE, 1925, 49 (289) :178-192

[3]

Corona charging of polymers: Recent advances on constant current charging [J].

Giacometti, JA ;

Fedosov, S ;

Costa, MM .

BRAZILIAN JOURNAL OF PHYSICS, 1999, 29 (02) :269-279

[4]

Goel M, 2003, CURR SCI INDIA, V85, P443

[5]

MEMS power generator with transverse mode thin film PZT [J].

Jeon, YB ;

Sood, R ;

Jeong, JH ;

Kim, SG .

SENSORS AND ACTUATORS A-PHYSICAL, 2005, 122 (01) :16-22

[6]

Kansal A, 2003, ISLPED'03: PROCEEDINGS OF THE 2003 INTERNATIONAL SYMPOSIUM ON LOW POWER ELECTRONICS AND DESIGN, P481

[7]

Lo HW, 2008, PROC IEEE MICR ELECT, P984

[8]

LOEHNDORF M, 2007, POWERMEMS UNPUB, P331

[9]

SAKANE Y, 2007, POWER MEMS, P53

[10]

Sessler GM, 1962, U.S. Patent No., Patent No. [3,118,022, 3118022]

← 1 2 →