Growth kinetics of zinc(tris)thiourea sulphate (ZTS) crystals

Abstract

Growth kinetics of zinc (tris) thiourea sulphate (ZTS) crystals investigated as a function of supersaturation is reported in this communication. Crystal growth rates were investigated normal to the (100), (010) and (001) faces under growth conditions employed for bulk crystal growth. The growth rates normal to (010) and (100) were found to follow the continuous growth model (R G = Cσ) with respect to the supersaturation whereas the growth rates normal to (001) was found to satisfy birth and spread (B+S) model (R G = Aσ 5/6 exp(-B/σ)). The growth rates observed normal to the studied face are in agreement with the growth mechanism predicted from the estimated α (Jackson) factor.

Studies on Nucleation, Growth and Characterization of L-Leucine Doped ZTS Crystals

“…The critical nucleation parameters such as radius of critical nucleus, Gibbs free energy change and number of molecules (n) in the critical nucleus decrease with supersaturation ratio (S) and these parameters decrease when concentration of dopants is increased. The obtained results of this work were the same as observed by other authors for their systems [20][21][22][23]. In accordance with the solubility data, saturated solutions of the synthesized salts of pure and L-leucine doped ZTS were prepared separately.…”

Elastic properties of zinc tris(thiourea) sulphate in a wide temperature range studied by Brillouin spectroscopy

“…The crystal density is 1850 kg/m 3 [2]. Under the conditions of growth applied the following walls were well [1,[7][8][9]. The samples to be studied were prepared in different orientations.…”

“…The process of the ZTS crystal growth has been described in Refs. [1,[7][8][9], and the optical [10], dielectric [11] and thermal [12] properties of the crystal have been studied. The ZTS crystals crystallise in the orthorhombic system, point group mm2 [1,13].…”

Optical imaging of the growth kinetics and polar morphology of zinc tris(thiourea) sulphate single crystals

“…Growth morphology of ZTS crystal was investigated theoretically in terms of Hartman−Perdok approach by Verma et al and also verified experimentally [15]. The growth rate normal to the (100), (010) and (001) faces is reported to increases linearly with supersaturation [16]. The relative growth rates along the three major crystallographic direction are: R 100 > R 010 > R 001 .…”