Structural and electrical properties of Mn-doped Na0.5Bi0.5TiO3lead-free single crystal

Y. Chen, Kwok Ho Lam, D. Zhou, Jiyan Dai, H. S. Luo, X. P. Jiang, H. L.W. Chan

Research output: Journal article publicationConference articleAcademic researchpeer-review

15 Citations (Scopus)

Abstract

The electrical properties and Raman spectroscopy of [001]-oriented pure lead-free Na0.5Bi0.5TiO3(NBT) and manganese-doped NBT single crystals have been investigated. With the effect of Mn-doping, the remnant polarization Prhas a great enhancement from 15.2 μC/cm2to 30.0 μC/cm2, and the pyroelectric coefficient is improved significantly from 178 μC/m2K to 241 μC/m2K. The Mn-doping has further altered the domain structure of the crystals, as revealed by piezoresponse force microscopy study. The Raman studies suggest that the substitution effect of Mn ions on B-site cations of the perovskite structure results in enhancement of the performance of the Mn-doped NBT single crystals.
Original languageEnglish
Pages (from-to)120-127
Number of pages8
JournalIntegrated Ferroelectrics
Volume141
Issue number1
DOIs
Publication statusPublished - 12 Jun 2013
EventInternational Symposium on Integrated Functionalities, ISIF 2012 - Hong Kong, Hong Kong
Duration: 18 Jun 201221 Jun 2012

Keywords

  • Electric property
  • Lead-free single crystal
  • MnO-doping
  • Raman spectra

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Control and Systems Engineering
  • Ceramics and Composites
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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