A Novel Coverglass System with Enhanced Radiation Resistance

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$684,503.00
Award Year:
2005
Program:
SBIR
Phase:
Phase II
Contract:
FA9453-05-C-0040
Award Id:
67439
Agency Tracking Number:
F041-029-1803
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
303 Bear Hill Road, Waltham, MA, 02451
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
004627316
Principal Investigator:
Robert Kovar
Senior Staff Scientist
(781) 684-4114
bkovar@foster-miller.com
Business Contact:
Richard Wiesman
Executive Vice President
(781) 684-4242
sdorsey@foster-miller.com
Research Institution:
n/a
Abstract
The Foster-Miller team is developing a novel coverglass system that protects photovoltaic cells on space power systems that are exposed to high doses of ionizing radiation. The spectrum of radiation a solar cell is exposed to not only provides usable energy, over time it also reduces the efficiency of the cell by darkening the barrier coverglass, escalates the operating temperature, and deteriorates adhesives that hold the array together. Foster-Miller's new coverglass will prolong the system's end of life by preventing the harmful effects of ionizing radiation and UV radiation while allowing the power generating wavelengths to be transmitted to the photovoltaic cells. Our approach incorporates alternative types of host glass doped with radiation hardening additives. The glass will accommodate increased amounts of radiation absorbing dopants that provide concurrent oxidation and reduction pathways. Further, the new glasses can be engineered to broaden band gaps and so further enhance performance of modern, high-efficiency multijunction solar cells. (P-050060)

* information listed above is at the time of submission.

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