Pyroelectric properties in sol-gel derived barium strontium titanate thin films using a highly diluted precursor solution

被引：71

作者：

Cheng, JG ^{[1
]}

Tang, J

Chu, JH

Zhang, AJ

机构：

[1] Chinese Acad Sci, Shanghai Inst Tech Phys, Natl Lab Infrared Phys, Shanghai 200083, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Tech Phys, Shanghai Dekai Instrument Co Ltd, Shanghai 200083, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 07期

关键词：

D O I：

10.1063/1.1289038

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The pyroelectric coefficient and pyroelectric infrared response in the sol-gel derived Ba0.8Sr0.2TiO3 thin films have been studied for possible infrared detector applications. The measured pyroelectric coefficient is larger than 3.1 x 10(-4) C/m(2) K at temperatures ranging from 10 to 26 degrees C and reaches the maximum value of 4.1 x 10(-4) C/m(2) K at 16 degrees C. The infrared detectivity of 4.6 x 10(6) cm Hz(1/2) W-1 has been obtained at 19 degrees C and 10 Hz in the Ba0.8Sr0.2TiO3 films deposited on thick (500 mu m) platinum coated silicon substrates. The better infrared response can be expected by the improvement in the thermal isolation of pyroelectric element and the electrode materials. (C) 2000 American Institute of Physics. [S0003-6951(00)03133-8].

引用

页码：1035 / 1037

页数：3

共 19 条

[1] A study of barium strontium titanate thin films for use in bypass capacitors [J].