Effect of Zr/Ti ratio on microstructure and electrical properties of pyroelectric ceramics for energy harvesting applications

Qingping Wang, Xue Zhang, Chris R. Bowen, Ming-Yu Li, Jiahui Ma, Shiyong Qiu, Huan Liu, Shenglin Jiang

Research output: Contribution to journalArticle

18 Citations (Scopus)
134 Downloads (Pure)

Abstract

In this paper, Pb[(MnxNb1-x)1/2(MnxSb1-x)1/2]y(ZrzTi1-z)1-yO3 (lead magnesium niobate-lead antimony-manganese-lead zirconate titanate: PMnN-PMS-PZT) ceramics with three different Zi/Ti compositions of 95/5 (Zr95), 85/15 (Zr85) and (Zr85 + Zr95) were successfully fabricated and characterized. The effect of Zr/Ti ratio on the microstructure and electric properties were studied in detail. The pyroelectric coefficient of Zr95 ceramic was 5957 μC/m2K which was more than 2–3 times higher than other reported pyroelectric ceramics. The effect on pyroelectric energy harvesting was systemically investigated via a variation of Zr/Ti compositions in the ceramics, which was directly evaluated by the output power acquired from the data acquisition system. The output power was 25.7 μW, 4.8 μW and 14.2 μW at a composition ratio of Zr95, Zr85 and Zr85 + Zr95, respectively under identical conditions. Among the three Zi/Ti compositions, the best pyroelectric and ferroelectric properties were achieved with Zr95, which indicated that the pyroelectric energy harvesting can be efficiently optimized by the appropriate control of phase structure.

Original languageEnglish
Pages (from-to)869-874
Number of pages6
JournalJournal of Alloys and Compounds
Volume710
Early online date22 Mar 2017
DOIs
Publication statusPublished - 5 Jul 2017

Keywords

  • Electrical properties
  • Energy harvesting
  • Pyroelectric ceramic
  • Zr/Ti molar ratio

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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