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THE IMPACT AND REDUCTION OF CDZNTE SUBSTRATE DEFECTS ON OMVPE HGCDTE EPILAYER…

Award Information

Agency:
Department of Defense
Branch:
Army
Award ID:
8719
Program Year/Program:
1990 / SBIR
Agency Tracking Number:
8719
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Ii-vi Inc.
375 Saxonburg Blvd Saxonburg, PA 16056
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1990
Title: THE IMPACT AND REDUCTION OF CDZNTE SUBSTRATE DEFECTS ON OMVPE HGCDTE EPILAYER PERFORMANCE
Agency / Branch: DOD / ARMY
Contract: N/A
Award Amount: $500,000.00
 

Abstract:

DEFECTS IN THE CDTE FAMILY OF SUBSTRATES ARE OF CRITICAL IMPORTANCE WHEN GROWING EXPITAXIAL FILMS OF HGCDTE BY LPE, OMVPE OR MBE. PRECIPITATES, DISLOCATIONS, AND SUBGRAIN STRUCTURE IN SUBSTRATES DEGRADE THE SURFACE MORPHOLOGY AND MICROSTRUCTURE OF EXPITAXIAL LAYERS, LEADING TO DECREASED EPILAYER YIELDS AND POOR IR DETECTOR PERFORMANCE. MISMATCH BETWEEN THE LATTICE PARAMETERS OF SUBSTRATE AND EPILAYER CAN LEAD TO HIGHER DISLOCATION DENSITY, POOR SURFACE MORPHOLOGY, AND STRAIN IN THE EPILAYER. PHASE I WILL QUANTIFY THE EFFECT ON CDZNTE SUBSTRATE LATTICE STRAIN, SUBGRAIN STRUCTURE AND MISMATCH ON THE PROPERTIES OF HGCDTE EPILAYERS GROWN BY OMVPE AND ON SUBSEQUENT IR DETECTOR YIELDS. PHASE II IS EXPECTED TO BROADEN THE SCOPE OF THE STUDY TO DETERMINE THE ROLES OF TE PRECIPITATES, ETCH PIT DISTRIBUTION, MICROTWINNING, AND PURITY IN SUBSTRATEEPILAYER INTERACTIONS.

Principal Investigator:

Donald R Nichols
4123524455

Business Contact:

Small Business Information at Submission:

Ii-vi Inc.
Saxonburg Blvd Saxonburg, PA 16056

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No