Improved radial segregation via the destabilizing vertical Bridgman configuration

Paul Sonda; Andrew Yeckel; Prodromos Daoutidis; Jeffrey J. Derby

doi:10.1016/j.jcrysgro.2003.08.007

Improved radial segregation via the destabilizing vertical Bridgman configuration

Paul Sonda
, Andrew Yeckel
, Prodromos Daoutidis
, Jeffrey J. Derby

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We employ a computational model to revisit the classic crystal growth experiments conducted by Kim et al. (J. Electrochem. Soc. 119 (1972) 1218) and Müller et al. (J. Crystal Growth 70 (1984) 78), which were among the first to clearly document the effects of flow transitions on segregation. Analysis of the growth of tellerium-doped indium antimonide within a destabilizing vertical Bridgman configuration reveals the existence of multiple states, each of which can be reached by feasible paths of process operation. Transient growth simulations conducted on the different solution branches reveal striking differences in hydrodynamic and segregation behavior. We show that crystals grown in the destabilizing configuration exhibit considerably better radial segregation than those grown in the stabilizing configuration, a result which challenges conventional wisdom and practice.

Original language	English (US)
Pages (from-to)	263-276
Number of pages	14
Journal	Journal of Crystal Growth
Volume	260
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jcrysgro.2003.08.007
State	Published - Jan 2 2004

Bibliographical note

Funding Information:
This material is based upon work supported by the National Science Foundation under Grant No. 0201486. This work was also supported in part by the United States National Aeronautics and Space Administration and the Minnesota Supercomputing Institute. PS also expresses thanks to the University of Minnesota Graduate School for a Doctoral Dissertation Fellowship.

Keywords

A1. Computer simulation
A1. Convection
A1. Fluid flows
A1. Mass transfer
A1. Segregation
A2. Bridgman technique

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10.1016/j.jcrysgro.2003.08.007

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title = "Improved radial segregation via the destabilizing vertical Bridgman configuration",

abstract = "We employ a computational model to revisit the classic crystal growth experiments conducted by Kim et al. (J. Electrochem. Soc. 119 (1972) 1218) and M{\"u}ller et al. (J. Crystal Growth 70 (1984) 78), which were among the first to clearly document the effects of flow transitions on segregation. Analysis of the growth of tellerium-doped indium antimonide within a destabilizing vertical Bridgman configuration reveals the existence of multiple states, each of which can be reached by feasible paths of process operation. Transient growth simulations conducted on the different solution branches reveal striking differences in hydrodynamic and segregation behavior. We show that crystals grown in the destabilizing configuration exhibit considerably better radial segregation than those grown in the stabilizing configuration, a result which challenges conventional wisdom and practice.",

keywords = "A1. Computer simulation, A1. Convection, A1. Fluid flows, A1. Mass transfer, A1. Segregation, A2. Bridgman technique",

author = "Paul Sonda and Andrew Yeckel and Prodromos Daoutidis and Derby, \{Jeffrey J.\}",

note = "Funding Information: This material is based upon work supported by the National Science Foundation under Grant No. 0201486. This work was also supported in part by the United States National Aeronautics and Space Administration and the Minnesota Supercomputing Institute. PS also expresses thanks to the University of Minnesota Graduate School for a Doctoral Dissertation Fellowship.",

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doi = "10.1016/j.jcrysgro.2003.08.007",

language = "English (US)",

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T1 - Improved radial segregation via the destabilizing vertical Bridgman configuration

AU - Sonda, Paul

AU - Yeckel, Andrew

AU - Daoutidis, Prodromos

AU - Derby, Jeffrey J.

N1 - Funding Information: This material is based upon work supported by the National Science Foundation under Grant No. 0201486. This work was also supported in part by the United States National Aeronautics and Space Administration and the Minnesota Supercomputing Institute. PS also expresses thanks to the University of Minnesota Graduate School for a Doctoral Dissertation Fellowship.

PY - 2004/1/2

Y1 - 2004/1/2

N2 - We employ a computational model to revisit the classic crystal growth experiments conducted by Kim et al. (J. Electrochem. Soc. 119 (1972) 1218) and Müller et al. (J. Crystal Growth 70 (1984) 78), which were among the first to clearly document the effects of flow transitions on segregation. Analysis of the growth of tellerium-doped indium antimonide within a destabilizing vertical Bridgman configuration reveals the existence of multiple states, each of which can be reached by feasible paths of process operation. Transient growth simulations conducted on the different solution branches reveal striking differences in hydrodynamic and segregation behavior. We show that crystals grown in the destabilizing configuration exhibit considerably better radial segregation than those grown in the stabilizing configuration, a result which challenges conventional wisdom and practice.

AB - We employ a computational model to revisit the classic crystal growth experiments conducted by Kim et al. (J. Electrochem. Soc. 119 (1972) 1218) and Müller et al. (J. Crystal Growth 70 (1984) 78), which were among the first to clearly document the effects of flow transitions on segregation. Analysis of the growth of tellerium-doped indium antimonide within a destabilizing vertical Bridgman configuration reveals the existence of multiple states, each of which can be reached by feasible paths of process operation. Transient growth simulations conducted on the different solution branches reveal striking differences in hydrodynamic and segregation behavior. We show that crystals grown in the destabilizing configuration exhibit considerably better radial segregation than those grown in the stabilizing configuration, a result which challenges conventional wisdom and practice.

KW - A1. Computer simulation

KW - A1. Convection

KW - A1. Fluid flows

KW - A1. Mass transfer

KW - A1. Segregation

KW - A2. Bridgman technique

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UR - https://www.scopus.com/pages/publications/0242607824#tab=citedBy

U2 - 10.1016/j.jcrysgro.2003.08.007

DO - 10.1016/j.jcrysgro.2003.08.007

M3 - Article

AN - SCOPUS:0242607824

SN - 0022-0248

VL - 260

SP - 263

EP - 276

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

IS - 1-2

ER -

Improved radial segregation via the destabilizing vertical Bridgman configuration

Abstract

Bibliographical note

Keywords

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