Investigation of the optical, photoluminescence, and dielectric properties of P-Toludinium picrate single crystals

The present work deals with the synthesis and characterization of p-Toluidinium picrate (PTP), an organic non-linear optical single crystal, produced by the solvent evaporation growth technique at room temperature condition. For the physical characterization, different instrumental techniques like powder XRD analysis for the crystallinity, FTIR, and laser Raman spectral analyses for the nature of chemical bonding and functionality, the ultraviolet spectrum for the optical absorption properties, etc were employed. Following the instrumental analysis, on testing of the photoluminescence properties, we observed the first emission peak at 359 nm in the UV region, and two other emission peaks around 443 nm and 460 nm corresponding to the blue emission region. Also, we investigated PTP's dielectric behaviour at different frequencies and room…