Photostrictive actuators

被引：146

作者：

Poosanaas, P

Tonooka, K

Uchino, K ^{[1
]}

机构：

[1] Penn State Univ, Int Ctr Actuators & Transducers, Mat Res Lab, University Pk, PA 16802 USA

[2] Hokkaido Natl Ind Res Inst, Div Mat, Sapporo, Hokkaido, Japan

来源：

MECHATRONICS | 2000年 / 10卷 / 4-5期

关键词：

photovoltaic effect; photostriction; photostrictive actuators; surface characteristics; PLZT ceramics;

D O I：

10.1016/S0957-4158(99)00073-2

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

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.

引用

页码：467 / 487

页数：21