Parimaladevi R, Sekar C, Krishnakumar V
Department of Physics, Periyar University, Salem 636011, Tamil Nadu, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2009 Sep 15;74(1):248-52. doi: 10.1016/j.saa.2009.06.017. Epub 2009 Jun 16.
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.
通过缓慢蒸发法生长出了铁电材料磷酸三甘氨酸硫酸盐（TGSP）的单晶。研究了添加L-赖氨酸对不同浓度（5%、10%和20%摩尔）的TGSP晶体生长的影响。通过粉末X射线衍射分析确定了晶胞参数。从记录的傅里叶变换红外光谱（FTIR）和傅里叶变换拉曼光谱的振动频率确认了生长晶体中存在的官能团。通过光谱分析定性地证实了L-赖氨酸掺入晶格中。热重分析研究证实赖氨酸掺入了TGSP晶体中。介电研究表明，赖氨酸掺入TGSP提高了其介电强度。
