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Innovative Inorganic Electrochromic Thermal Control Systems

Award Information

Department of Defense
Defense Advanced Research Projects Agency
Award ID:
Program Year/Program:
2002 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Eclipse Energy Systems, Inc.
2345 Anvil Street North St. Petersburg, FL 33710-3905
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Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2002
Title: Innovative Inorganic Electrochromic Thermal Control Systems
Agency / Branch: DOD / DARPA
Contract: DAAH0103CR071
Award Amount: $98,513.00


"Thermal control coatings are an important part of any spacecraft. Smaller light weight satellites are especially sensitive to radical changes in their thermal environment as they orbit the earth. An intelligent thermal management system is vital for thesesatellites. This program will develop a new design for an inorganic solid state electrochromic (EC) variable emittance coating with an emittance modulation range from 0.2 to 0.8. This is a substantial improvement in emittance modulation for EC coatings.Prototype coatings will be applied to substrates of silicon or germanium wafers, which also serve as infrared (IR) transparent windows, to create variable emittance devices (VEDs). These devices may be applied to satellite surfaces for thermal control.Sample devices will be subjected to 2000 equivalent sun hours of ultraviolet (UV) radiation in order to demonstrate the feasibility of their use mid-earth to geosynchronous orbits. These designs will be optimized for range of emittance modulation anddurability. The emittance modulation range will be further increased by adding one or more IR antireflective (AR) coatings to the substrates/IR windows. This EC technology will benefit the military and civilian aerospace industry by improving thermalstability of spacecraft and space structures for commercial and military applications. Successful completion of the Phase I program will produce a new design for an electrochromic variable emitta

Principal Investigator:

Nikolai Kislov
Senior Scientist

Business Contact:

Raymond T. Westfall
Vice President / Chief Sc
Small Business Information at Submission:

Eclipse Energy Systems, Inc.
2345 Anvil Street North St. Petersburg, FL 33710

EIN/Tax ID: 593269075
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No