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

摘要：

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 61 7cm-1 discemed 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.

关键词： Size effect Bi4Ti3O12 Raman Spectroscopy

作者: Bao-rang Li Bin Cao Cong Lu

作者单位: National Engineering Laboratory for Biomass Power Generation Equipment,North China Electric Power University,Beijing 102206,China

会议类型: 国际会议

会议名称: Frist Annual Meeting on Testing and Evaluation of Inorganic Materials(第一届全国无机材料测试与评价学术年会)

会议地点: 南昌

会议语种:英文

页码: 25-28

在线出版日期: 2010-04-28（万方平台首次上网日期，不代表论文的发表时间）