Effect of L-arginine-phosphate doping on structural, optical and strength properties of KDP single crystal

Abstract

L-arginine-phosphate doped Potassium Dihydrogen Phosphate single crystals with 0.2...4.4 wt.% concentration in the solution was grown on a point seed by the method of temperature reduction. The grown KDP:LAP crystals were characterizied by UV-vis spectroscopy, powder XRD analysis, differential thermal and thermogravimetric analyses and second harmonic generation efficiency measurements. The mechanical and laser strength values of LAP doped KDP crystals have been evaluated. Slight variation in the unit cell parameters of KDP:LAP has been reported. It has been shown that the efficiency of second harmonic generation conversion in KDP:LAP crystals was higher by more than 3-fold as compared to the corresponding values of pure KDP. The experimental results evidence the suitability of the grown KDP:LAP crystals for optoelectronics, and the study is helpful for further searching and designing of hybrid NLO materials.