VO-based switchable radiator for spacecraft thermal control.

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ID: 20563
2019
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Abstract
Direct calorimetric measurements of a solid state passive switchable radiator for spacecraft thermal control have been performed in a simulated space environment. Dynamic emissivity control is provided by the thermochromic phase change in a multilayer VO thin film based resonant absorber. The measured radiated power difference between 300 K and 373 K was 480 W/m corresponding to a 7× difference in radiative cooling power. We present theoretical and experimental radiator values for both normal and hemispherical as well the optical properties of VO as determined via infrared spectroscopic ellipsometry.
Reference Key
kim2019vobasedscientific Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Kim, Heungsoo;Cheung, Kwok;Auyeung, Raymond C Y;Wilson, Donald E;Charipar, Kristin M;Piqué, Alberto;Charipar, Nicholas A;
Journal Scientific reports
Year 2019
DOI
10.1038/s41598-019-47572-z
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