Studies on the growth, optical, electrical and spectral properties of potassium pentaborate (KB5) single crystals |
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| Authors: | Mary S Stella Kirupavathy S Shahil Mythili P Srinivasan P Kanagasekaran T Gopalakrishnan R |
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| Affiliation: | Department of Physics, Anna University, Chennai 600 025, India; Department of Physics, St. Peter's Engineering College, Avadi, Chennai 600 054, India. |
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| Abstract: | The bulk single crystals of nonlinear optical material potassium pentaborate (KB5) have been grown by slow evaporation solution growth technique using water as solvent. The grown crystal was confirmed by single crystal X-ray diffraction studies. The structural perfection of the grown crystals has been analyzed by high resolution X-ray diffraction (HRXRD) studies by recording rocking curve. The photoluminescence (PL), UV-vis spectral studies were performed and the optical bandgap of the material was calculated. FTIR and FT-Raman measurements enumerate the functional groups present in the compound. The factor group analysis on KB5 reveals that there are 117 vibrational optical modes. The dielectric behavior of KB5 was investigated with different frequencies and temperatures. |
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| Keywords: | Crystal growth X-ray diffraction FTIR Photoluminescence Dielectric properties |
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