SYNTHESIS, GROWTH, SPECTRAL AND OPTICAL PROPERTIES OF 2-AMINOPYRIDINIUM p-AMINOBENZOATE NONLINEAR OPTICAL SINGLE CRYSTAL
Keywords:
Organic, NLO, crystal growth, structural, spectral and optical propertiesAbstract
Organic nonlinear optical crystal of 2-aminopyridinium p-Aminobenzoate have been grown by slow
evaporation solution growth method at room temperature using ethanol:water as mixed solvent. From the single crystal
X-ray diffraction study, it is confirmed that PA2A crystal belongs to orthorhombic crystal system with space group P.
From the powder XRD pattern, the various planes of reflections and crystal perfections were identified. The presence of
functional groups in the synthesized compound was identified by FTIR spectral analysis. The cut-off wavelength and
transmittance were determined by UV-Visible spectra. From the Photoluminescence spectra, high intensity violet
emission peak observed at 360 nm with excited at 345 nm. The Kurtz-Perry powder second harmonic generation
technique confirms the nonlinear optical property of the grown crystal. The SHG relative efficiency of PA2A crystal has
been found 2.2 times higher than that of KDP.
