Influence of Mn plus Y co-doped on the intrinsic pyroelectricproperties of Ba0.67Sr0.33TiO3 ceramics

被引：0

作者：

Xu, Zunping ^{[1
]}

Chen, Xiaolong ^{[1
]}

Yan, Dongxu ^{[1
]}

Liu, Hong ^{[1
]}

Yu, Ping ^{[1
]}

Xiao, Dingquan ^{[1
]}

Zhu, Jianguo ^{[1
]}

机构：

[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610064, Peoples R China

来源：

2011 INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS (ISAF/PFM) AND 2011 INTERNATIONAL SYMPOSIUM ON PIEZORESPONSE FORCE MICROSCOPY AND NANOSCALE PHENOMENA IN POLAR MATERIALS | 2011年

关键词：

Ceramics; Chemical synthesis; Microstructure; electrical properties; DIELECTRIC BOLOMETER MODE; THIN-FILMS; SENSOR;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Mn+Y co-doped Ba0.67Sr0.33TiO3 (BST) powders were fabricated by a citrate precursor method. Mn+Y: BST ceramics were prepared by conventional electronic ceramic process. The microstructure and intrinsic pyroelectric properties of the obtained Mn+Y: BST ceramics were investigated. Adopting fine Mn+Y doped BST powders derived from the citrate method was confirmed to be effective in reducing the sintering temperature required for densification. The ceramic specimens sintered at 1250-1300 degrees C presented relative densities of around 96%. The ceramics sintered at 1280 degrees C for 3 h attained superior dielectric and pyroelectric properties, giving a dielectric constant epsilon(r) = 2850, dielectric loss tan delta = 0.0137, remnant polarization P-r = 7.3 mu C/cm(2), intrinsic pyroelectric coefficient gamma(int) = 570 nC/cm(2) K, and the maximum figure of merit of detectivity F-D = 88.1 mu Pa-1/2 at 1 kHz, respectively.

引用

页数：3

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