Solutal convection during melt growth of alloyed semiconductor crystals in a steady magnetic field

Nancy Ma

doi:10.2514/6.2002-1113

Solutal convection during melt growth of alloyed semiconductor crystals in a steady magnetic field

Nancy Ma

North Carolina State University

Research output: Contribution to conference › Paper › peer-review

1 Scopus citations

Abstract

This paper presents a model for the unsteady species transport during growth of alloyed semiconductor crystals from the melt with a planar crystal-melt interface and with an externally applied steady axial magnetic field. During growth of alloyed semiconductors such as germanium-silicon (GeSi) and mercury-cadmium-telluride (HgCdTe), the solute's concentration is not small so that density differences in the melt are very large. These compositional variations drive compositionally-driven buoyant convection, or solutal convection, in addition to thermally-driven buoyant convection. These buoyant convections drive convective transport that produce non-uniformities in the concentration in both the melt and the crystal. This transient model predicts the distribution of species in the entire crystal.

Original language	English
DOIs	https://doi.org/10.2514/6.2002-1113
State	Published - 2002
Externally published	Yes
Event	40th AIAA Aerospace Sciences Meeting and Exhibit 2002 - Reno, NV, United States Duration: Jan 14 2002 → Jan 17 2002

Conference

Conference	40th AIAA Aerospace Sciences Meeting and Exhibit 2002
Country/Territory	United States
City	Reno, NV
Period	01/14/02 → 01/17/02

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10.2514/6.2002-1113

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title = "Solutal convection during melt growth of alloyed semiconductor crystals in a steady magnetic field",

abstract = "This paper presents a model for the unsteady species transport during growth of alloyed semiconductor crystals from the melt with a planar crystal-melt interface and with an externally applied steady axial magnetic field. During growth of alloyed semiconductors such as germanium-silicon (GeSi) and mercury-cadmium-telluride (HgCdTe), the solute's concentration is not small so that density differences in the melt are very large. These compositional variations drive compositionally-driven buoyant convection, or solutal convection, in addition to thermally-driven buoyant convection. These buoyant convections drive convective transport that produce non-uniformities in the concentration in both the melt and the crystal. This transient model predicts the distribution of species in the entire crystal.",

author = "Nancy Ma",

year = "2002",

doi = "10.2514/6.2002-1113",

language = "English",

note = "40th AIAA Aerospace Sciences Meeting and Exhibit 2002 ; Conference date: 14-01-2002 Through 17-01-2002",

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T1 - Solutal convection during melt growth of alloyed semiconductor crystals in a steady magnetic field

AU - Ma, Nancy

PY - 2002

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N2 - This paper presents a model for the unsteady species transport during growth of alloyed semiconductor crystals from the melt with a planar crystal-melt interface and with an externally applied steady axial magnetic field. During growth of alloyed semiconductors such as germanium-silicon (GeSi) and mercury-cadmium-telluride (HgCdTe), the solute's concentration is not small so that density differences in the melt are very large. These compositional variations drive compositionally-driven buoyant convection, or solutal convection, in addition to thermally-driven buoyant convection. These buoyant convections drive convective transport that produce non-uniformities in the concentration in both the melt and the crystal. This transient model predicts the distribution of species in the entire crystal.

AB - This paper presents a model for the unsteady species transport during growth of alloyed semiconductor crystals from the melt with a planar crystal-melt interface and with an externally applied steady axial magnetic field. During growth of alloyed semiconductors such as germanium-silicon (GeSi) and mercury-cadmium-telluride (HgCdTe), the solute's concentration is not small so that density differences in the melt are very large. These compositional variations drive compositionally-driven buoyant convection, or solutal convection, in addition to thermally-driven buoyant convection. These buoyant convections drive convective transport that produce non-uniformities in the concentration in both the melt and the crystal. This transient model predicts the distribution of species in the entire crystal.

UR - http://www.scopus.com/inward/record.url?scp=85087597452&partnerID=8YFLogxK

U2 - 10.2514/6.2002-1113

DO - 10.2514/6.2002-1113

M3 - Paper

AN - SCOPUS:85087597452

T2 - 40th AIAA Aerospace Sciences Meeting and Exhibit 2002

Y2 - 14 January 2002 through 17 January 2002

ER -

Solutal convection during melt growth of alloyed semiconductor crystals in a steady magnetic field

Abstract

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