Pyroelectric properties of Mn-doped Aurivillius ceramics with different pseudo-perovskite layers

Yanxue Tang, Zong Yang Shen, Xiangyong Zhao, Feifei Wang, Wangzhou Shi, Dazhi Sun, Zhiyong Zhou, Shujun Zhang

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Abstract

The pyroelectric properties of Mn-doped Aurivillius ceramics with different pseudo-perovskite layers were investigated. The pyroelectric coefficients for 0.2 wt% Mn-doped two-layer CaBi2Nb2O9 (CBN–Mn), three-layer Bi4Ti2.85Nb0.15O12 (BTN–Mn), and four-layer CaBi4Ti3.95Nb0.05O15 (CBTN–Mn) ferroelectric ceramics were found to be on the order of 26.0, 54.4, 84.4 μC/m2K at room temperature, respectively. These values were closely associated with the number of octahedral layers in the pseudo-perovskite blocks. The high pyroelectric coefficient, together with low dielectric permittivity and loss (tan δ < 0.003), results in to high figures of merit for the current responsivity, voltage responsivity, and detectivity. The excellent pyroelectric properties and high Curie temperatures (TC > 660°C) make the Aurivillius ceramics potential candidates for pyroelectric devices over a broad temperature range.

Original languageEnglish (US)
Pages (from-to)1592-1597
Number of pages6
JournalJournal of the American Ceramic Society
Volume101
Issue number4
DOIs
StatePublished - Apr 2018

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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    Tang, Y., Shen, Z. Y., Zhao, X., Wang, F., Shi, W., Sun, D., Zhou, Z., & Zhang, S. (2018). Pyroelectric properties of Mn-doped Aurivillius ceramics with different pseudo-perovskite layers. Journal of the American Ceramic Society, 101(4), 1592-1597. https://doi.org/10.1111/jace.15267