A Novel Coverglass System with Enhanced Radiation Resistance

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9453-05-C-0040
Agency Tracking Number: F041-029-1803
Amount: $5,684,320.00
Phase: Phase II
Program: SBIR
Awards Year: 2005
Solicitation Year: 2004
Solicitation Topic Code: AF04-029
Solicitation Number: 2004.1
Small Business Information
303 Bear Hill Road, Waltham, MA, 02451
DUNS: 004627316
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Robert Kovar
 Senior Staff Scientist
 (781) 684-4114
Business Contact
 Richard Wiesman
Title: Executive Vice President
Phone: (781) 684-4242
Email: sdorsey@foster-miller.com
Research Institution
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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