LATGS-PVDF热释电复合薄膜研究  

RESEARCH ON THE LATGS PVDF PYROELECTRIC COMPOSITE FILMS

作　　者：张红梅[1] 徐平茂[1] 冯传胜[1] 刘雪兰 韦建中 武子生 房昌水[2] 

机构地区：[1]山东大学光电系 [2]山东大学晶体所

出　　处：《红外与毫米波学报》1997年第2期152-156,共5页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金

摘　　要：研制了ＬＡＴＧＳ－ＰＶＤＦ热释电复合薄膜，测试分析了膜的介电和热释电性能．制膜过程中加极化电场使复合膜中ＬＡＴＧＳ晶粒的内偏场沿极化场取向，达到既具有好的热释电性又不退极化的目的．用这种复合膜研制的热释电探测器的探测率Ｄ＊（５００Ｋ，１０Ｈｚ）高达１．１２×１０８ｃｍ·Ｈｚ１／２·Ｗ－１．LATGS PVDF pyroelcetric composite films were developed. The dielectric and pyroelectric properties of the composite films were analyzed. A large polarizing electric field was used during the film forming period to force the inner bias electric field of LATGS grains to turn to the direction of the polarizing electric field. Thus the LATGS PVDF composite films have a good pyroelectric property and will not depolarize. The composite film detectors were developed with D * (500K, 10Hz) up to 1.12×10 8cm·Hz 1/2 ·W -1 .

关 键 词：热释电复合薄膜 介电常数 热释电系数 薄膜 

分 类 号：O484.4[理学—固体物理]