Abstract
Novel organic nonlinear optical material 4-Aminopyridinium Trichloro Acetate (4ATCA) crystals were grown from aqueous solution by the slow evaporation method for the first time. Single Crystal X-ray diffraction reveals that the grown crystal belongs to an orthorhombic system with a space group of Pbca. The morphological study identifies various planes in the crystal and prominent plane was found to be (0–10). The presence of functional groups and other chemical components were analyzed by FTIR study. The crystal is transparent in the entire visible region (350 nm–700 nm) and a lower cut-off value was found to be 218 nm. The laser damage threshold value of the crystal was estimated to be 3.2 GW/cm2. The sharp endothermic peak at 170.5 °C, limits its NLO applications. The low dielectric loss value reveals lower defect density of the grown crystal. SHG test shows that the material 4ATCA has conversion efficiency, 1.5 times that of KDP crystal.
Published Version
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