Synthesis, Optical and Thermal Properties of β-Alanine β-Alaninium Picrate Single Crystal

The organic nonlinear optical (NLO) material β-Alanine β-Alaninium Picrate (β-AAP) was grown by slow evaporation technique. Powder X-ray diffraction patterns were recorded and indexed for further confirmation of crystalline nature of grown (β-AAP) crystal. The transparent range of the grown material was studied using UV-Vis-NIR spectral analysis and the optical band gap was evaluated from the absorption spectrum .The photoluminescence spectra of the grown crystal have been recorded and it shows a high intensity peak at 455 nm. The modes of vibrations of different molecular groups present in the sample were identified using FTIR spectral analysis. Thermal behavior of the crystal has been investigated by DTA and TGA analysis. The surface properties and morphology have been investigated using Scanning Electron Micrograph (SEM). The third-order nonlinear optical parameters for β-AAP single crystal are determined using Z-scan technique.