Growth, spectral studies, thermal and dielectric aspects of L-lysine doped triglycine sulpho phosphate (TGSP) crystals.
R Parimaladevi, C Sekar, V Krishnakumar
Index: Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 74(1) , 248-52, (2009)
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Abstract
Single crystals of ferroelectric material triglycine sulpho phosphate (TGSP) have been grown by slow evaporation method. The effect of L-lysine addition on the growth of TGSP crystal has been studied for various concentrations (5, 10 and 20 mol%). Unit cell parameters were determined from powder XRD analysis. Functional groups present in the grown crystal were confirmed from the vibrational frequencies of recorded FTIR and FT-Raman spectrum. The L-lysine doping into the crystal lattice has been qualitatively confirmed by spectral analysis. Thermogravimetric studies confirm that the lysine is incorporated into TGSP crystals. Dielectric studies reveal that the incorporation of lysine into TGSP enhances its dielectric strength.
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