Multi Junction Solar cells for Satellite

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$99,913.00
Award Year:
2010
Program:
STTR
Phase:
Phase I
Contract:
HQ0006-10-C-7386
Award Id:
94848
Agency Tracking Number:
B09B-005-0017
Solicitation Year:
n/a
Solicitation Topic Code:
MDA 09T005
Solicitation Number:
n/a
Small Business Information
215 Wynn Dr., 5th Floor, Huntsville, AL, 35805
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
185169620
Principal Investigator:
AlexFedoseyev
Senior Principal Engineer
(256) 726-4800
tsb@cfdrc.com
Business Contact:
DebPhipps
Senior Contracts Specialist
(256) 726-4884
dap@cfdrc.com
Research Institute:
Rochester Institute of Technology
Katherine A Clark
University SC, Suite 2400
141 Lomb Memorial Drive
Rochester, NY, 35805
(585) 475-7984

Abstract
Higher efficiency solar cells are needed to reduce mass, volume, and cost of DoD space missions. However, to achieve higher efficiency and radiation hardness of the best to date multi-junction photovoltaic (PV) devices, several challenges must be addressed. This project aims to develop: 1) Quantum Well (QW)-based multi-junction cell that exhibits enhanced efficiency, and 2) Radiation-hardened PV cell design demonstrating the radiation tolerance of the QW multi-junction cell. Customized modeling tools will enable QW optimization, including: (a) geometrical ordering and variable QW size, (b) increased transport and separation of photogenerated carriers; and (c) improved electrical conductivity and enhanced collection efficiency. In Phase I, CFDRC, together with Rochester Institute of Technology, will concentrate on the design and demonstration of the middle cell in a multi-junction (InGaP/GaAs/Ge) configuration, the most sensitive to radiation effects. The design and implementation of QWs in this middle cell will be directly applicable to a state-of-the-art lattice-matched cell and a metamorphic cell. We will fabricate a prototype QW cell and perform baseline irradiation testing/evaluation. Phase II will continue development by implementing the QW response and radiation resistance within a multi-junction cell, resulting in significantly improved QW solar cell performance under AM0 spectrum and post-irradiation at the end of life.

* information listed above is at the time of submission.

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