Investigation of solute segregation in CZT-LPVB with finite element analysis method

The Cd0.9Zn0.1Te crystal growth(LPVB,low pressure vertical bridgman) was numerically simulated and analyzed by the simulation software of comsol Mutiphysics.The influence of curvature on solid-liquid interface is studied,and the radial solute segregation is calculated.Three kinds of growth methods divided as following:(1) constant velocity;(2) changed velocity,(3) remelting growth are studied on the radial solute segregation.Energy dispersive X-ray detector of scanning electronic microscopy is used to test the concentration of zinc.And all the calculated data are agreements with the results of the experiments.