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Crystal structure, dielectric and optical properties of wide band gap Sr2+ modified NBT (Na0.5Bi0.5TiO3).
- Source :
- AIP Conference Proceedings; 2024, Vol. 2995 Issue 1, p1-4, 4p
- Publication Year :
- 2024
-
Abstract
- Lead free NBT (sodium bismuth titanate) is an emerging ferroelectric material due to its ability to replace the lead based ceramics. In this work, the solid state reaction method is employed to prepare Sr modified Na<subscript>0.5</subscript>Bi<subscript>0.5</subscript>TiO<subscript>3</subscript> (Na<subscript>0.5</subscript>Bi<subscript>0.47</subscript>Sr<subscript>0.03</subscript>TiO<subscript>3</subscript>). The structural, dielectric, ferroelectric, and optical properties have been investigated. The crystal symmetry has been identified from XRD and Raman spectra. The surface morphology of the prepared sample has been investigated from the FESEM micrograph. The average crystallite size is found to be 1.6 μm calculated by image J software. The frequency dependent dielectric properties of the sample has been studied in the range 10 Hz to 10 kHz. A wide optical bandgap (∼3.5 eV) of Na<subscript>0.5</subscript>Bi<subscript>0.47</subscript>Sr<subscript>0.03</subscript>TiO<subscript>3</subscript> has been observed from the Tauc plot of UV spectra. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0094243X
- Volume :
- 2995
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- AIP Conference Proceedings
- Publication Type :
- Conference
- Accession number :
- 174778894
- Full Text :
- https://doi.org/10.1063/5.0178749