TITLE:
Single Crystal Growth of Lanthanum(III) Molybdate(VI) (La4Mo7O27) Using H3BO3 Flux
AUTHORS:
Muthaiyan Rajalakshmi, Ravanan Indirajith, Rengasamy Gopalakrishnan
KEYWORDS:
Flux Growth; Powder X-Ray Diffraction; La4Mo7O27; Thermal Analysis; Optical Properties; Second Harmonic Generation (SHG)
JOURNAL NAME:
Journal of Crystallization Process and Technology,
Vol.4 No.1,
January
13,
2014
ABSTRACT: 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.