Effect of additives in nucleation kinetics and growth of potassium acid phthalate crystals kap from solution and dielectric and zscan studies on grown crystals

Abstract

Nonlinear optical materials are now creating intense interest not newlineonly due to their NLO properties but also due to attempts to control other newlinecharacteristics such as solubility processability optical clarity absorption newlineand thermal stability as these will obviously determine technological utility newlinePotassium Acid phthalate KAP is one of the semi organic newlinenonlinear optical materials with good NLO property It is used in Xray newlinefluorescence spectroscopy and plasma physics It crystallizes from its aqueous newlinesolution into small platelet like crystal with dominating 010 faces The newlinedominant 010 faces of KAP exhibit welldefined growth spirals The shape newlineof the growth spirals on the 010 face of potassium hydrogen phthalate is newlinevery sensitive to the addition of small amounts of impurities to the growth newlinesolution newline newline