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Nanostructures for dislocation blocking in infrared detectors: Dislocation…

Award Information

Agency:
Department of Defense
Branch:
Army
Award ID:
83228
Program Year/Program:
2007 / STTR
Agency Tracking Number:
A074-006-0257
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Brimrose Corporation of America
19 Loveton Circle Hunt Valley Loveton Center Sparks, MD 21152-9201
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2007
Title: Nanostructures for dislocation blocking in infrared detectors: Dislocation Reduction In Infrared Detector Materials Grown on Si Substrates Using Nan
Agency / Branch: DOD / ARMY
Contract: W911NF-07-C-0085
Award Amount: $99,884.00
 

Abstract:

The Phase I objective is to demonstrate dislocation reduction in both cadmium telluride (CdTe) and subsequent HgCdTe epitaxial layers grown on silicon substrate using an intermediate nanocrystalline CdTe buffer layer of optimized thickness and size. Nanocrystalline CdTe buffer layer will be deposited on silicon substrate by low cost processing method/s. The method consists of (a) Colloidal synthesis of CdTe nanocrystals, (b) Nanocrystalline film deposition by spin coating and (c) Chemical treatment of the film to remove the ligands and passivate the surface. MOCVD will be used first to nucleate, selectively, a thin CdTe template film on nanocrystalline CdTe buffer. Both MOCVD and MBE techniques will then be used to deposit epitaxial CdTe and HgCdTe layers to determine which technique is most suitable for achieving dislocation density reduction. Growth by MOCVD and MBE will be carried out at Rensselaer Polytechnic Institute (RPI) and Army Research Laboratory (ARL), respectively. Phase II, HgCdTe-IR material device structure with reduced dislocation density will be grown. LWIR-HgCdTe detector will be fabricated and tested. Samples of CdTe epitaxial layers with low dislocation density will be provided to ARO, ARL and Night Vision laboratories for evaluation at their facilities.

Principal Investigator:

G. V. Jagannathan
Sr. Scientist
4106685800
gnathan@brimrose.com

Business Contact:

Diane C. Murray
Contract Coordinator
9365886901
dibrim@aol.com
Small Business Information at Submission:

BRIMROSE CORP.OF AMERICA
19 Loveton Circle Hunt Valley Loveton Center Sparks, MD 21152

EIN/Tax ID: 521210230
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
RENSSLAER POLYTECHNIC INSTITUTE
110 8th Street
403 West Hall
Troy, NY 12180 3590
Contact: Richard E. Scammell
Contact Phone: (518) 276-6177
RI Type: Nonprofit college or university