Int. J. Simul. Multisci. Des. Optim.
Volume 5, 2014
|Number of page(s)||9|
|Published online||08 July 2014|
Numerical simulation of vertical Bridgman solidification of CdZnTe
LabEM (LR11ES34), University of Sousse, ESSTH Sousse, rue Lamine Abbassi, 4011
Hammam Sousse, Tunisia
2 CNRS-SPCTS/CEC, 12 rue Atlantis, 87068 Limoges, France
3 Université de Lorraine, Lab. Energétique de Longwy – LERMAB/FJV, Longwy, France
* e-mail: firstname.lastname@example.org
Accepted: 17 April 2014
The solidification of the singular CdZnTe in axisymetric Vertical Bridgman (VB) cavity is investigated in the current study. The numerical approach is developed by using COMSOL Multiphysics software, which is based on finite elements method (FEM) with Arbitrary Lagrangian-Euleurian (ALE) formulation allowing treating the moving interface. Numerical aspects of different parameters that affect the solidification interface and present an important factor during the crystal growth’s process are presented and analyzed. Especial attention will be paid to investigate the thermophysical properties such as thermal diffusivity, heat capacity. Thermal conductivity and the effect of thermal condition specially the effect of cold temperature Tc which affects significantly the concavity and the convexity of the interface for specific ranges in the solidification of CdZnTe phenomena, but it is of great importance the crystal growth experts are not it given importance. It has been shown that this properties, the effect of Tc, and the variation of interface velocity affect the solid/liquid interface shape and the crystal growth process.
Key words: CdZnTe solidification / Axisymetric Bridgman Vertical (BV) / ALE formulation
© H. Jamai et al., Published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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