Influence of S/La Molar Ratio on the Morphology and Optical Property of La2S3 Microcrystalline Prepared by Microwave Hydrothermal

摘要：

　　The La2S3 microcrystalline was prepared by microwave hydrothermal method (M-H).The influences of S/La molar ratio on the phase composition,and morphology of the La2S3 microcrystalline were particularly investigated.The obtained samples were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM),ultraviolet and visible spectroscopy (UV-vis) and photoluminescence spectroscopy (PL) at room temperature.With the decrease of S/La molar ratio from 6/3 to 6/6,crystallization of the obtained microcrystalline is improved.The morphology of prepared La2S3 transforms from irregular shapes to quasi-sphere structure.The as-prepared microcrystalline shows excellent absorbency of ultraviolet light and are almost transparent to visible light to exhibit stable violet-blue photoluminescence properties under the ultraviolet light excitation at room temperature.

关键词： La2S3 microcrystalline Optical property Microwave hydrothermal

作者: Zhang Ye Cao Li-yun Huang Jian-feng Wu Jian-peng

作者单位: Key Laboratory of Auxiliary Chemistry & Technology for Light Chemical Industry,Ministry of Education,Shaanxi University of Science & Technology,Xian Shaanxi 710021,China

会议类型: 国际会议

会议名称: The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))

会议地点: 厦门

会议语种:英文

页码: 223-226

在线出版日期: 2011-11-04（万方平台首次上网日期，不代表论文的发表时间）