HETEROSTRUCTURES

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$45,950.00
Award Year:
1986
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
3890
Agency Tracking Number:
3890
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
76 Holton St, Woburn, MA, 01801
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
PAUL VOHL
(617) 938-0773
Business Contact:
() -
Research Institute:
n/a
Abstract
THE GOAL OF PHASE I IS TO DEMONSTRATE AN ADVANCED TECHNIQUE FOR THE GROWTH OF MULTILAYERS OF MERCURY CADMIUM TELLURIDE (MCT) AT LOW TEMPERATURE (<350 DEG C) FOR IR DETECTOR APPLICATIONS. THE OBJECTIVES ARE TO OBTAIN: 1) GROWTH OF UNIFORM LARGE AREA DEVICE QUALITY LAYERS AT LOW TEMPERATURE. 2) MULTILAYER STRUCTURES INCLUDING N/P JUNCTIONS. THE LAYERS ARE GROWN BY A NEW VAPOR-PHASE METHOD WHICH YIELDS COMPOSITIONS COVERING THE ENTIRE ALLOY RANGE BETWEEN HGTE AND CDTE. INDEPENDENT CONTROL OF THE FOUR PRINCIPAL PARAMETERS THAT DETERMINE THE COMPOSITION; THE SUBSTRATE TEMPERATURE AND THE PARTIAL PRESSURES OF HG, CD AND TE IS ACHIEVED IN AN OPEN-TUBE SYSTEM THAT UTILIZES SEPARATE ELEMENTAL SOURCES. THE GROWTH OF DEVICE QUALITY EPILAYERS INCLUDING LAYERS SUITABLE FOR RESONANT OPTICAL CAVITY (ROC) APPLICATIONS, HAS ALREADY BEEN DEMONSTRATED. ANTICIPATED BENEFITS ARE: 1) THE PROCESS CAN MEET THE REQUIREMENTS OF COST EFFECTIVE PRODUCTION AND SAFETY AND 2) THE REACTOR IS OF SIMPLE CONSTRUCTION AND UTILIZES THE ELEMENTS DIRECTLY. THE REACTOR IS PRESENTLY IN OPERATION AND INITIAL RESULTS INDICATE THAT THE OBJECTIVES CAN BE REALIZED.

* information listed above is at the time of submission.

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