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 language | English |
|---|---|
| Pages (from-to) | 120-127 |
| Number of pages | 8 |
| Journal | Integrated Ferroelectrics |
| Volume | 141 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 12 Jun 2013 |
| Event | International Symposium on Integrated Functionalities, ISIF 2012 - Hong Kong, Hong Kong Duration: 18 Jun 2012 → 21 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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