Application of Raman Spectroscopy on Size Driven Phase Transition in Bismuth Titanate

Bao Rang Li; Bin Cao; Cong Lu

doi:10.4028/www.scientific.net/AMR.177.25

Paper Titles

Formation Mechanism of SrBi₂Nb₂O₉ Prepared by Melting Salt Method
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Determination of Heavy Metals in Inorganic Materials by XRF
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Particle Shape Characterization of Inorganic Powders by SEM and Image Analysis
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Determination of Particle Size Distribution of Nano-TiO₂ Coating Film by AFM and Image Analysis
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Application of Raman Spectroscopy on Size Driven Phase Transition in Bismuth Titanate
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Mechanochemical Synthesis and Characteristics of Pb(Mg_1/3Nb_2/3)O₃
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ZnFe₂O₄ Modified by Fe(NO₃)₃ for the Synthesis of Ionic Ferrofluids
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XRD Study on D-Values of Modified PbTiO₃ Ceramics during Poling Process
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Application of X-Ray Diffraction at the Study on the Preparation and Structure of α-Al₂O₃ Nanocrystal
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 177Application of Raman Spectroscopy on Size Driven...

Application of Raman Spectroscopy on Size Driven Phase Transition in Bismuth Titanate

Abstract:

Bismuth titanate nano-crystals were prepared successfully by sol-gel method and the critical particle size for phase transition was analyzed by Raman techniques. The results revealed the new Raman peaks at the wave number about 87, 227, 442, 467, 577 and 617cm-1 discerned gradually with increasing the particle size and abrupt increase in integrated intensity ratios of these modes, companied with strong decrease of half-widths happened at the particle size ranging from 18 to 33nm, which suggested an obvious size driven tetragonal-to-orthorhombic phase transition in Bismuth titanate nano-crystals.