Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 93, Issue 12, Pages 2075-2078Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2009.02.025
Keywords
Electrochromic; Thin film; Variable emissivity; Thermal management; Infrared
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A novel electrochromic device (ECD) working in mid- to long-wave infrared (IR) region is presented, comprising of a solid-state monolithic thin film system for adjusting heat rejection/receiving levels on attached surfaces. The system is an electrically controllable active emissivity modulator. EclipseVED (TM), variable-emissivity ECD, is designed for satellite and spacecraft thermal control, using an active ECD system for long-wave infrared (LWIR) modulation and a passive cold mirror for solar rejection. Emissivity modulation of the system is 0.8 for 7-12 mu m region while average solar rejection is 80% in the vis-NIR region. Device properties and initial space test results are also presented. (C) 2009 Elsevier B.V. All rights reserved.
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