红外探测用无铅铁电陶瓷的热释电特性研究进展  

Research progress of pyroelectric characteristics of lead-free ferroelectric ceramics for infrared detection

作　　者：郭少波[1,2] 闫世光 曹菲 姚春华[1] 王根水[1,2,3] 董显林[1,2,3] Guo Shao-Bo;Yan Shi-Guang;Cao Fei;Yao Chun-Hua;Wang Gen-Shui;Dong Xian-Lin(Key Laboratory of Inorganic Functional Materials and Devices,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;State Key Laboratory of High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China)

机构地区：[1]中国科学院上海硅酸盐研究所,中国科学院无机功能材料与器件重点实验室,上海200050 [2]中国科学院大学材料与光电研究中心,北京100049 [3]中国科学院上海硅酸盐研究所,高性能陶瓷和超微结构国家重点实验室,上海200050

出　　处：《物理学报》2020年第12期245-260,共16页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:61475176);中国科学院仪器研制项目(批准号:YJKYYQ20170018);中科院科技服务网络计划(STS)资助的课题。

摘　　要：铁电陶瓷具有优异的热释电性能,是红外探测器的核心敏感元材料,目前普遍采用铅基陶瓷材料,发展无铅铁电陶瓷用于热释电红外探测是近年来电介质物理与材料的一个热点.本文综述了无铅铁电陶瓷的热释电性能研究进展,主要包括钛酸钡基、钛酸铋钠基、铌酸锶钡基、铌酸钾钠基等系列铁电陶瓷的热释电效应研究现状,归纳了不同体系增强热释电效应的手段.通过比较分析主要无铅铁电陶瓷的热释电性能和退极化性能的制约关系,指出钛酸铋钠基陶瓷是目前最具应用潜力的无铅材料体系,并对无铅铁电陶瓷热释电探测应用未来的发展方向进行了展望.Due to the excellent pyroelectric properties,ferroelectric ceramics containing lead element are widely used as sensitive materials in pyroelectric infrared detectors at present.The research and development of lead-free ferroelectric ceramics for this kind of detector has become a hot research spot in the areas of dielectric physics and materials in recent years.In this article,the recent research progress of the pyroelectric effect in series of important lead-free ferroelectric ceramic systems is reviewed,including barium titanate,sodium bismuth titanate,potassium sodium niobite,barium strontium niobite,etc.The methods of enhancing the pyroelectric effect are summarized,including doping modification,phase boundary design,process improvement,etc.Through comparative analysis of the relationship between pyroelectric properties and depolarization temperatures of different systems,it is concluded that bismuth sodium titanate based ceramics are the most potential lead-free materials in the future.The prospective research work of lead-free ferroelectric ceramics for infrared detection is also suggested.

关 键 词：铁电陶瓷 红外探测 热释电效应 钙钛矿结构 

分 类 号：TQ174.1[化学工程—陶瓷工业] TN215[化学工程—硅酸盐工业]