Lead-free pyroelectric infrared detector based on (Bi1/2Na1/2)TiO3-BaTiO3 ferroelectric ceramics

被引：4
作者：
Wu, Zheng [1 ]
Zhang, Mengyuan [1 ,2 ]
Jiang, Xianyao [1 ]
Ke, Xucheng [1 ]
Cai, Yu [1 ]
Cao, Liang [1 ]
Li, Jiani [1 ]
Jia, Huixia [1 ]
Li, Chuanqing [1 ,4 ]
Leung, Chung Ming [3 ,5 ]
Wang, Feifei [1 ,4 ]
机构：
[1] Shanghai Normal Univ, Dept Phys, Key Lab Optoelect Mat & Device, Shanghai, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Device, Shanghai, Peoples R China
[3] Harbin Inst Technol Shenzhen, Sch Mech Engn & Automat, Shenzhen, Peoples R China
[4] Shanghai Normal Univ, Dept Phys, Key Lab Optoelect Mat & Device, Shanghai 200234, Peoples R China
[5] Harbin Inst Technol Shenzhen, Sch Mech Engn & Automat, Shenzhen, Peoples R China
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2023年 / 106卷 / 11期
基金：
中国国家自然科学基金;
关键词：
ferroelectricity; ferroelectric materials; infrared techniques; lead-free ceramics; pyroelectricity;
D O I：
10.1111/jace.19299
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this paper, we theoretically and experimentally reported a lead-free pyroelectric infrared (PIR) detector using (Bi1/2Na1/2TiO3)-BaTiO3(BNT-BT) ferroelectric ceramics as the sensitive material. The variation of noise density, voltage response rate (R-V), and specific detection rate (D*) with the modulation frequency under the current mode amplification circuit was investigated, and it was found that the lead-free PIR detector showed high R-V in the low frequency band. The R-V and D* reached 1.51 x 10(5) V/W and 2.02 x 10(8) cmHz(1/2)W(-1) at 10 Hz, respectively. The results were much superior to the PIR based on traditional commercial pyroelectric ceramics, indicating that BNT-BT lead-free ceramics have great potential in application to PIR detectors.
引用
收藏
页码：6755 / 6761
页数：7
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