The structure and photoluminescence of Bi4Ti3O12 nanoplates synthesized by hydrothermal method
作者： Haoshuang Gu , Zhenglong Hu , Yongming Hu , Ying Yuan , Jin You
DOI: 10.1016/J.COLSURFA.2007.08.010
关键词:
摘要: Abstract Bismuth titanate (Bi 4 Ti 3 O 12 ) nanoplates were synthesized by polyethylene glycol-assisted hydrothermal method at 200 °C. The as-prepared samples investigated X-ray powder diffraction, scanning electron microscopy, transmission high-resolution microscopy and the room-temperature photoluminescence. Bi are single crystalline orthorhombic perovskite structure with average rim sizes of about 200 nm thickness 10–20 nm. One blue–green photoluminescence band centered around 470.4 nm was observed room temperature. investigation effects annealing temperatures on visible emission showed that or grain size play important roles for intensities light emission, oxygen vacancies should be responsible this emission.
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