Authors : V. R. Raghorte, N. S. Meshram, K. G. Rewatkar and V. M. Nanoti
Page Nos : 143-147
Description :
ABSTRACT : Optically transparent non linear crystal of potassium dihydrogen phosphate (KDP) has been grown by solution as well as SR method. The crystal grown form solution methods have excellent transparency was confirmed by UV-visible spectrum which shows 90 % transmittance; and lower cut off wavelength is 224 nm. The crystal grown by SR method along (101) plane was observed with growth rate 3mm per day for 15 days and dimension reached up to 50 mm in height. The functional groups were identified by FTIR analysis, further the grown crystals were characterized by TGA/DTA analysis, which reveals that the crystal were thermally stable below of 2200C. The higher concentration of amino acid dopant increases the hardness value crystal. At 50 g the Hv of doped KDP was found to be 120.4 Hv and 122.0 Hv.
Key Words - UV-Vis studies, growth form solution, Hardness.
