Optically good quality Diglycine Perchlorate (DGPCL) single crystals were grown by the solution growth slow evaporation method. Single crystal X-ray diffraction of DGPCL was analyzed in this paper. From the FTIR study, the functional groups of crystal were identified and confirmed. UV–Vis absorption spectrum was examined, which shows that large transmittance in the entire visible and NIR region and the value of optical band gap were determined. The Second Harmonic Generation efficiency of the crystal was determined by the Kurtz–Perry powder method, which authenticates nonlinear optical property of the title material. Thermal study with kinetic parameter calculations was analyzed. Laser Induced Damage threshold of the sample crystal was determined. The dielectric study was carried out by determining dielectric constant, dielectric loss and ac conductivity using LCR meter and the variations of these parameters with frequency and temperature were analyzed.

中文翻译：

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半有机晶体的生长、光学和热表征：用于二阶非线性光学应用的高氯酸二甘氨酸

通过溶液生长缓慢蒸发法生长光学质量良好的高氯酸二甘氨酸 (DGPCL) 单晶。本文对DGPCL的单晶X射线衍射进行了分析。通过 FTIR 研究，鉴定并确认了晶体的官能团。检查了紫外-可见吸收光谱，结果表明在整个可见光和近红外区域的大透射率和光学带隙值被确定。晶体的二次谐波发生效率由 Kurtz-Perry 粉末方法确定，该方法验证了标题材料的非线性光学特性。分析了具有动力学参数计算的热学研究。确定了样品晶体的激光诱导损伤阈值。通过确定介电常数进行介电研究，