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High performance Bi₀.₅Na₀.₅TiO₃-BiAlO₃-K₀.₅Na₀.₅NbO₃ lead-free pyroelectric ceramics for thermal detectors

Liu, Zhen; Peng, Ping; Ren, Weijun; Lu, Teng; Liu, Yun; Guo, Shaobo; Dong, Xianlin; Wang, Genshui

Description

Both high pyroelectric properties and good temperature stability of ferroelectric materials are desirable when used for applications in infrared thermal detectors. In this work, we report lead-free ternary 0.97(0.99Bi0.5Na0.5TiO3-0.01BiAlO3)-0.03K0.5Na0.5NbO3 (BNT-BA-KNN) ceramics, which not only exhibits a large pyroelectric coefficient (p ∼ 3.7 × 10-8 C cm-2K-1) and figures of merit (Fi, Fv, and Fd) but also shows excellent thermal stable properties. At room temperature, Fi, Fv, and Fd are...[Show more]

CollectionsANU Research Publications
Date published: 2018-04-03
Type: Journal article
URI: http://hdl.handle.net/1885/164537
Source: Applied Physics Letters
DOI: 10.1063/1.5020424
Access Rights: Open Access

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