USA flag logo/image

An Official Website of the United States Government

Variable Emissivity Electrochromics Using Ionic Electrolytes and Low Solar…

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2008 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Ashwin-Ushas Corporation, Inc.
9 Red Coach Ln Holmdel, NJ 07733-
View profile »
Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
Phase 1
Fiscal Year: 2008
Title: Variable Emissivity Electrochromics Using Ionic Electrolytes and Low Solar Absorptance Coatings
Agency: NASA
Contract: NNX08CB96P
Award Amount: $99,956.00


In recent work, this firm developed a highly promising, patented variable emittance technology based on electrochromic Conducting Polymers, with: (1) Thin (< 0.2 mm), flexible, lightweight (0.176 kg/m2), variable area (0.5 cm2 - 0.5 m2. (2) Impervious to flexing, micrometeoroids.(3) High Delta Emittance (0.5, range 0.13 - 0.89).(4) > 105 cycles, < 5 s switching, indefinite optical memory. (5) Low power, 0.30 W/m2 (6) Space durability: (10-6 Torr) 100,000 electrochromic cycles, 90 thermal cycles;. no UV degradation > 500 h. Durability against atomic-O. (7) Operating temperature (-) 45 oC to (+) 100 oC, durability (-) 196 oC to (+) 100 oC. (8) Easily applicable with space-qualified adhesive to any surface. (9) Cost ca. < $5K/m2. A key technical barrier of the earlier generation of this technology was the need for a hermetic seal for space durability. This was resolved through use of unique ionic electrolytes. An additional drawback remained: High solar absorptance of the dark-state. In very recent, unrelated work, this firm has developed coatings that are IR transparent from 2 to 25 microns while having very low solar absorptance (data herein). In the proposed work, these will be used to arrive at unique, variable emissivity materials with very low solar absorptance. Proposed work includes extensive space durability testing.

Principal Investigator:

Prasanna Chandrasekhar
Principal Investigator

Business Contact:

Prasanna Chandrasekhar
Business Official
Small Business Information at Submission:

Ashwin-Ushas Corp, Inc.
500 James Street, Unit 7 Lakewood, NJ 08701

EIN/Tax ID: 223193455
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No