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Compensated pyroelectric infrared detector based on Mn‐doped PIMNT single crystal with enhanced signal stability
Author(s) -
Li Zihao,
Liu Fei,
Tang Yanxue,
Zhao Xiangyong,
Wang Tao,
Duan Zhihua,
Shi Wangzhou,
Wang Feifei,
Jiao Jie,
Luo Haosu
Publication year - 2021
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.17513
Subject(s) - responsivity , pyroelectricity , detector , materials science , noise (video) , signal (programming language) , infrared detector , infrared , doping , optoelectronics , single crystal , specific detectivity , crystal (programming language) , pyroelectric crystal , optics , ferroelectricity , photodetector , physics , nuclear magnetic resonance , programming language , artificial intelligence , computer science , dielectric , image (mathematics)
A compensated pyroelectric infrared (PIR) detector based on Mn‐doped 0.15Pb(In 1/2 Nb 1/2 )O 3 ‐0.55Pb(Mg 1/3 Nb 2/3 )O 3 ‐0.30PbTiO 3 (Mn‐PIMNT(15/55/30)) relaxor ferroelectric single crystal was theoretically designed and experimentally fabricated. Under the current‐mode amplification circuit, the voltage responsivity and specific detectivity of the compensated detector reached 8 × 10 4 V/W@10 Hz and 3.6 × 10 8 cm⋅Hz 1/2 /W, respectively. The noise mechanism of the detector was studied and the dominant noise sources at different frequencies were simulated. Even though the noise density of the compensated detector increased due to the introduction of the parallel compensation element, substantially enhanced signal stability was achieved and the compensated detector was much less susceptible to environmental temperature changes and vibrations, which is more suitable for application in harsh environments.