Investigation of Temperature Dependence and Impurity Content on the Growth Rate of KDP Crystals

Abstract

Growth rate and effects of doping sodium in potassium dihydrogen phosphate (KDP) solution have been studied in crystals grown by solution evaporation and slow cooling methods. The crystals were grown in a KDP solution doped with different concentrations of sodium ions. The rates of growth along the thickness and width of the crystals were independent of sodium incorporation into the grown crystals and dependent on temperature reduction by a factor of 10. The concentration of sodium in the crystals (C s) measured by ICP and the concentrations of sodium in the KDP solution (C l) showed C s/C l to be constant.

Effect of Cr(III) impurity on the growth kinetics of potassium dihydrogen phosphate and triglycine sulfate crystals grown from aqueous solutions

“…The growth rate (axial velocity) and the growth yield were calculated from the dimensions of seeds and grown crystals. The method of growth of pure and doped KDP and TGS single crystals from aqueous solution is described in more detail elsewhere [9]. The impurity was added to the solution as Cr 2 (SO 4 ) 3 , and its concentration in the solution was determined using the inductively coupled plasma technique.…”

“…The aim of this paper is to describe and discuss the results of growth kinetics of these crystals in light of existing and new concepts and models. KDP and TGS crystals are chosen for the present study because, apart from being technologically useful and important, these crystals differ very much from each other in their structure and chemical nature [7][8][9].…”

Investigation on (100) face of KDP crystal poisoned by MoO4 2− impurity

“…The effect of Na ? on KDP crystal can be neglected with low concentration (\10 4 ppm) [14]. For conventional temperature cooling method, the seed crystals were z-cut with dimensions of 26 9 26 9 5 mm 3 .…”

Investigation on the regeneration of Z‐cut KDP crystals

“…Large single homogeneous crystals of potassium dihydrogen phosphate (KDP) find extensive application as converters of laser light from the infrared to the ultraviolet [1]. In recent years, the main effort in the crystal growth of KDP has been focused on the production of large crystals suitable for laser fusion experiments [2].…”