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Crystal Research and Technology |
Cryst. Res. Technol. 41, 784 (2006) - Abstract -
Crystallization of benzimidazole by solution growth method and its characterization
N. Vijayan, G. Bhagavannarayana, T. Kanagasekaran*, R. Ramesh Babu*,R. Gopalakrishnan, and P. Ramasamy**
Materials Characterization Division, National Physical Laboratory, New Delhi – 110 012, India
*Department of Physics, Anna University, Chennai – 600 025, India
**Crystal Growth Centre, Anna University, Chennai – 600 025, India
| Keywords | nonlinear optics, organic compounds, High Resolution X-ray diffraction, TGA |
| PACS | 42.70.Mp, 61.66.Hq, 61.10.Nz, 81.70.Pg |
| DOI | 10.1002/crat.200510669 |
The potential organic NLO crystal of benzimidazole (BMZ) has been successfully grown by slow evaporation solution growth technique at room temperature. The crystalline perfection has been verified by High resolution X-ray diffraction (HRXRD) analysis. The very low angle boundary obtained for this solution-grown specimen may be attributed to the segregation of solvent molecules (methanol), which were entrapped within the crystal during growth. The laser damage threshold has been measured by using high intensity Q-switched Nd:YAG laser. The observed value is greater than that of KDP and lesser than that of melt grown benzimidazole. The NLO efficiency has been determined and it is compared with the KDP crystal. The thermal behaviour has been assessed by TG/DTA analysis.
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