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Crystals 2016, 6(9), 116; doi:10.3390/cryst6090116

Numerical Analysis of the Combined Influence of Accelerated Crucible Rotation and Dynamic Crucible Translation on Liquid Phase Diffusion Growth of SiGe

1
Crystal Growth Laboratory, University of Victoria, Victoria, BC V8W3P6, Canada
2
Water and Energy Laboratory, University of California at Merced, Merced, CA 95343, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Bing Gao
Received: 25 July 2016 / Revised: 3 September 2016 / Accepted: 6 September 2016 / Published: 13 September 2016
(This article belongs to the Special Issue Global Modeling in Crystal Growth)
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Abstract

The effects of accelerated crucible rotation technique (ACRT) and dynamic translation on liquid phase diffusion (LPD) growth of SixGe1−x single crystals have been separately investigated numerically in earlier works and were found to have a very positive impact on the LPD growth process. Building upon these findings, in this paper, we study the consequences of imposing both ACRT and dynamic translation on this growth technique. Time-dependent, axisymmetric numerical simulations using moving grid approach have been carried out using finite volume code Ansys Fluent. Crucible translation effect is simulated using dynamic thermal boundary condition. Results are compared to the case in which this growth system is subjected to ACRT only. It is predicted that by combining ACRT with dynamic pulling, excellent axial compositional uniformity can be achieved and growth rate can be improved substantially without significantly compromising on the benefits of employing ACRT. The results show that it is advantageous to utilize the combination of ACRT and dynamic translation during LPD growth rather than using them independently for producing relatively uniform composition SixGe1−x single crystals in a shorter span of time. View Full-Text
Keywords: liquid phase diffusion; simulation; germanium-silicon alloys; accelerated crucible rotation technique; dynamic translation; modeling; solution growth; numerical study liquid phase diffusion; simulation; germanium-silicon alloys; accelerated crucible rotation technique; dynamic translation; modeling; solution growth; numerical study
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Sekhon, M.; Lent, B.; Ma, Y. Numerical Analysis of the Combined Influence of Accelerated Crucible Rotation and Dynamic Crucible Translation on Liquid Phase Diffusion Growth of SiGe. Crystals 2016, 6, 116.

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