期刊
MECHATRONICS
卷 10, 期 4-5, 页码 467-487出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0957-4158(99)00073-2
关键词
photovoltaic effect; photostriction; photostrictive actuators; surface characteristics; PLZT ceramics
Photostrictive materials, exhibiting light induced strain, are of interest for future generation wireless remote control photo-actuators, micro-actuators, and micro-sensors applications. (Pb, La)(Zr, Ti) O-3 (PLZT) ceramics doped with WO3 exhibit large photostriction under uniform illumination of near-ultraviolet light. Using a bimorph configuration, a photo-driven relay and a micro walking device have been demonstrated. However, for the fabrication of these devices, materials exhibiting higher photovoltaic effect and higher response speed must be developed. The present paper reviews a new theoretical model for photovoltaic effect first, then enhanced performance photostrictive materials through sample surface characteristics, finally its potential future applications. (C) 2000 Elsevier Science Ltd. All rights reserved.
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