Growth kinetics on the (100) and (001) faces of TGS crystals

The growth kinetics and mechanisms on the (001) and (100) faces of TGS crys tals were investigated. A phase contrast microscope with a CCD camera was u sed to observe the growth of the crystal. We found the growth on the (001) and (100) faces at high supersaturation was mainly controlled by a BCF surf ace diffusion mechanism. The kinetic data for the (100) face were also fitt ed by the nucleation and layer growth model of two-dimension nucleation at high supersaturation. Some important growth parameters for TGS crystals, su ch as edge energy, activation energy, and so on, were estimated.