Single Crystal Growth of Lanthanum(III) Molybdate(VI) (La<sub>4</sub>Mo<sub>7</sub>O<sub>27</sub>) Using H<sub>3</sub>BO<sub>3</sub>Flux

• 作者: Muthaiyan Rajalakshmi Ravanan Indirajith Rengasamy Gopalakrishnan
• 来源期刊: 结晶过程及技术期刊(英文)
• 学科: 化学
• 关键词: FLUX Growth Powder X-Ray Diffraction La4Mo7O27 Thermal Analysis Optical Properties Second Harmonic Generation (SHG)
• 年，卷（期）: 2014,（1）
• 页码范围: 39-45
• 页数: 7页
• 分类号: O6

摘要

Single crystals of La4Mo7O27 have been successfully grown by the flux growth method H3BO3 as the flux in a plantium crucible using the starting materials of La2O3, H3BO3 and MoO3 in a molar ratio of 0.16:0.16:0.68, in which H3BO3 acted as a flux. Transparent colorless crystals were obtained with size of 0.8 × 0.3 × 0.2 mm3 under the optimized crystal growth conditions: growth temperature of 727°C, growth time of 95 h and cooling rate of 0.5°C/hr. A well-developed morphology of the crystals was observed and analyzed. The preparation process of starting materials on crystal growth was investigated. The grown crystals were characterized by powder X-ray diffraction (PXRD), EDAX, SEM, UV-Vis, photoluminescence studies, thermal analysis, dielectric studies and second harmonic generation (SHG). The results are presented and discussed.