Preparation and Photostriction Properties of BiFeO_(3)-BaTiO_(3)Ceramics  

作　　者：ZHENG Zewei ZHANG Liqiang CHEN Chen CAO Minghe YI Zhiguo LIU Hanxing 郑泽威;曹明贺;易志国

机构地区：[1]School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China [2]State Key Laboratory of High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China [3]School of Microelectronics,Shanghai University,Shanghai 200444,China [4]International School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2024年第5期1079-1086,共8页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Key Research and Development Program of China(No.2023YFB3812200);the National Key Basic Research Program of China(973 Program)(No.2015CB654601)。

摘　　要：Under illumination by 405,520 and 655 nm monochromatic visible light(light intensity of 30 kW/m^(2)),large photostriction(ΔL/L)of 0.19%,0.13%and 0.26%for 67BiFeO_(3)-33BaTiO_(3)(67BF-33BT)lead-free ferroelectric ceramics are obtained,respectively.By studying the ferroelectric and photoelectric properties in conjunction with in situ Raman spectroscopy,it is found that the photostrictive effect of 67BF-33BT is not caused by the electrical strain induced by abnormal photovoltaic voltage,but related to the optical induced oxygen octahedral distortion.The 67BF-33BT lead-free ferroelectric material with excellent photostrictive response in the visible light region is expected to play an important role in the field of optical drive electromechanical devices.

关 键 词：ferroelectric ceramics photostrictive effect visible light response 

分 类 号：TQ174.1[化学工程—陶瓷工业]