红外焦平面列阵热成像用陶瓷热释电材料的研制  

PYROELECTRIC CERAMICS WITH THE DESIRED PROPERTIES FOR APPLICATION ON IN FOCAL PLANE THERMAL IMAGING ARRAYS

作　　者：刘瑞斌[1] 林盛卫[1] 瞿翠凤[1] 姚春华[1] 金绮华[1] 林猷慎[1] 张毓荣[1] 

机构地区：[1]中国科学院上海硅酸盐研究所,昆明物理研究所

出　　处：《硅酸盐学报》1995年第3期327-330,共4页Journal of The Chinese Ceramic Society

基　　金：国家"八五"攻关经费资助

摘　　要：报道了在ＰＺＮＦＴＳⅠ型材料研究工作基础上提出的小面积探测器对材料选择的原则，通过进一步的添加改性制备ＰｚＮＦＴＳⅡ型材料，使得用ＰＺＮＦＴＳⅡ型材料制作的小面积探测器的性能进一步提高，其达到的数值说明这种材料基本上可以满足实用红外焦平面列阵对材料性能的要求。Based on the selection principles of materials for small area IR detector derived from our previ-ous research on PZNFTS Ⅰpyroelectric ceramics,PZNFTS Ⅱpyroelectric ceramics with higher pyroeletriccoefficient and dielectric constant were obtained through further doping,the pyroelectric coefficient and dielec-tric constant of which were 7.2 ×10￣(-4)C·m￣(-2)·K￣(-1) and 500 respectively. The detectivity D￣* of small area IRdetector made of PZNFTS Ⅱ with a sensitive area size with 0. 3mm and thickness 0.035mm was 3×10￣8cm·Hz￣(1/2)·W￣(-1).The D￣*value shows that PZNFTS Ⅱ type pyroelectric ceramic has a strong potential to be agood candidate in pyroelectric IR focal plane thermal imaging array application.

关 键 词：热释电 陶瓷材料 红外探测器 红外热像仪 

分 类 号：TQ174.756[化学工程—陶瓷工业] TN215[化学工程—硅酸盐工业]