Numerical modelling for convection in growth/dissolution of solid solution CdXHg1−XTe by liquid-phase epitaxy

Numerical study for diffusion processes in dissolution and growth of heterostructures formed by LPE. Part II. Effect of programmed temperature changes

“…Some data essential for designing well controlled LPE techniques are listed in Table 1. Comparison with our previous calculations [3,14] shows that neglect of diffusion in the solid phase produces excessive dissolution depth. Processing time, thickness of the grown layer and its surface composition practically coincide with the data obtained here in scope of self-consistent approach accounting for solid diffusivity.…”

“…[2,3]. Computed data allow to specify the region of experimental parameters, where the substrate dissolution is controlled mainly by diffusion mass transfer.…”

3D computer simulation for convection in liquid phase epitaxy of ternary alloys

“…Hence 2D disturbances are the most dangerous ones for the crystal shape. Results of 3D modeling with roll-like initial perturbations are close to 2D ones [6], i.e. 2D simulations ensure correct determination of the critical dissolution process parameters.…”

Numerical study for diffusion processes in dissolution and growth of heterostructures formed by LPE. Part I. Isothermal conditions

“…2. Phase diagram: At the solid/liquid interface, composition of the two phases are related by phase diagram of the system, that can be written in the form [6,8]:…”

“…Numerical study for convective motion in growth/ dissolution of Cd-Hg-Te compounds has been done in [6][7][8]. In particular, computed data allow to specify the experimental conditions which provide diffusive regimes of species transport in the liquid phase.…”