Growth of <201> 8-hydroxyquinoline organic crystal by Czochralski method and its characterizations
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In this study, 8-Hydroxyquinoline (8HQ) single crystal has been successfully grown by Czochralski method. The unit cell parameters of 8HQ single crystal were confirmed by single crystal X-ray diffraction analysis. The crystalline perfection of grown crystal has been analyzed by high-resolution X-ray diffractometry. Fourier transform infrared spectral studies have been performed to identify the functional groups. The UV–Vis-NIR studies show that the grown 8HQ crystal’s cutoff wavelength is around 390 nm. The thermal property of the grown crystal was studied by thermogravimetric and differential thermal analysis. The laser damage threshold value of the grown crystal was measured at multiple-shot mode using Nd:YAG laser. The dielectric measurements were carried out to determine the dielectric behavior for the crystal. The SHG efficiency of 8HQ is 0.8 times that of KDP.
KeywordsOptical materials Organic compounds Crystal growth X-ray diffraction
The authors are thankful to Dr. G. Bhagavannarayana, the National Physical Laboratory, New Delhi for HRXRD studies.
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