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CRYSTAL GROWTH OF CADMIUM TELLURIDE (CDTE) BY THE HEAT EXCHANGER METHOD (HEM)
- Small Business Information
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Woman-Owned: NoMinority-Owned: NoHUBZone-Owned: No
- Phase 2
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Fiscal Year: 1985Title: CRYSTAL GROWTH OF CADMIUM TELLURIDE (CDTE) BY THE HEAT EXCHANGER METHOD (HEM)Agency / Branch: DOD / USAFContract: N/AAward Amount: $400,000.00
Abstract:
CADMIUM TELLURIDE (CDTE) CRYSTALS ARE REQUIRED FOR A NUMBER OF APPLICATIONS. ONE OF THE MAIN REQUIREMENTS IS AS MODULATORS OF 10.6 UM CO2 LASER RADIATION, ESPECIALLY IN LASER RADAR. A NUMBER OF CRYSTAL GROWTH PROCESSES HAVE BEEN USED; HOWEVER, ONLY SMALL CRYSTALS WITH LOW YIELDS HAVE BEEN GROWN. IT IS INTENDED TO USE A NEW CRYSTAL GROWTH PROCESS, THE HEAT EXCHANGER METHOD (HEM), AND SHOW FEASIBILITY OF GROWTH FOR CDTE CRYSTALS. SOME OF THE ADVANTAGES OF HEM ARE SUBMERGED SOLID-LIQUID INTERFACE, INDEPENDENT CONTROL OF SOLID AND LIQUID GRADIENTS WITHOUT MOVEMENT, UNIFORM GRADIENTS AT THE CONVEX SOLID-LIQUID INTERFACE, FLEXIBILITY AND PRECISE CONTROL OF HEAT EXCHANGER TEMPERATURE AND IN-SITU ANNEALING OF THE CRYSTAL AFTER GROWTH. THE COMBINATION OF THESE FEATURES AND THE ABILITY TO SCALE UP IN SIZE ALLOW IMPORTANT ADVANTAGES TO HEM. DURING THE PROPOSED PHASE I IT IS INTENDED TO SHOW FEASIBILITY OF GROWTH OF CDTE CRYSTALS IN SEALED QUARTZ AMPULES. ALTERNATE CRUCIBLE MATERIALS AND ENCAPSULATED GROWTH CAN BE EASILY ADAPTED IN THE HEM SYSTEM.Small Business Information at Submission:Principal Investigator:
Chandra Khattak
6177450088Business Contact:
Crystal Systems, Inc.
35 Congress Street Salem, MA 01970EIN/Tax ID:DUNS: N/ANumber of Employees:Woman-Owned: NoMinority-Owned: NoHUBZone-Owned: No
Award Information
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Agency: Department of Defense |
Branch: Air Force |
Award ID: 973 |
Program Year/Program: 1985 / SBIR |
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Agency Tracking Number: 973 |
Solicitation Year: N/A |
Solicitation Topic Code: N/A |
Solicitation Number: N/A |