Thermal and Dielectric Properties Of L-Malic Acid Doped KDP Single Crystals

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A. Venkatesan, S. Arulmani, E. Chinnasamy, S. Senthil, M.E. Rajasaravanan (2017). Thermal and Dielectric Properties of L-Malic Acid Doped KDP Single Crystals. Mechanics, Materials Science & Engineering, Vol 9. doi:10.2412/mmse.24.24.878

Authors: A. Venkatesan, S. Arulmani, E. Chinnasamy, S. Senthil, M.E. Rajasaravanan

ABSTRACT. Potassium Dihydrogen Phosphate (KDP) is a popular nonlinear optical materials that is widely used in the field of nonlinear optics for the frequency conversion processes. Optically good quality L-Malic acid doped KDP (LMKDP) crystals have been grown by slow evaporation method at room temperature. The crystallinity of the LMKDP crystals has been studied by powder XRD analysis. The presence of the functional group for LMKDP crystals are qualitatively analyzed from FTIR and FT-RAMAN spectrum. The second harmonic generation (SHG) efficiency was measured by using Kurtz powder technique. The dielectric behavior of grown crystals has been studied in the frequency range from 50 Hz to 50MHz. UV–visible absorption spectrum was recorded to study the optical transparency of grown crystal. Thermogravimetric analysis (TG) and differential thermal analysis (DTA) were used to study the thermal properties of the grown crystal.

Keywords: PXRD, FT-IR, FT-Raman, NLO studies, Dielectric studies, UV-visible, TGA/DTA.

DOI 10.2412/mmse.24.24.878

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