4-Aminopyridinium Salicylate- An organic single crystal for third harmonic generation applications

In the present work, Non- linear optical organic single crystal, 4 aminopyridinium salicylate (APSA) is grown by slow evaporation method using methanol as solvent. The as grown single crystal was subjected to various characterizations such as XRD, FTIR, UV, dielectric studies and the results are studied. The photoconductivity measurements reveal that the conductivity of APSA is positive. The thermal stability of the as grown crystal was studied with TG/DTA analysis. Z-scan studies were carried out to determine parameters of THG such as non-linear refractive index and non- linear absorption coefficient. The antioxidant property of APSA against DPPH and H2O2 was identified. The non-linear property of the crystal was confirmed through the above studies.