Growth and characterization of KDP crystals doped with l-aspartic acid

Potassium Dihydrogen Phosphate (KDP) doped with l-aspartic acid has been grown by solvent slow evaporation technique from a mixture of aqueous solution of KDP and 0.7% of l-aspartic acid at room temperature. The grown crystals were characterized by powder X-ray diffraction, UV–visible, FTIR analysis. The doping of aspartic acid was confirmed by FTIR spectrum. The Nonlinear optical property (SHG) of l-aspartic acid doped KDP has been confirmed. Microhardness studies were carried out on the grown crystal.

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► The functional groups of grown crystals were identified using FTIR studies.
► The grown crystals were transparent for entire visible and IR region.
► In l-aspartic acid doped KDP crystals NLO efficiency is increased.