Abstract
This paper focuses on the performances of flexible all-polymer electroemissive devices as active materials for thermal control of satellites. These devices are made of a semi-interpenetrating network of poly(ethylene oxide) and poly(3,4-ethylenedioxythiophene) (PEO/PEDOT) where PEDOT is embedded within the PEO network and swollen with an ionic liquid. The reflectivity at 2.5μm and the emissivity in the infrared region between 5 and 50μm were measured at room temperature as well as the stability in vacuum. It was thus pointed out that these films exhibit interesting switching properties as notably a maximal emissivity contrast of 0.31 with a switching time less than 3min. Moreover a low energy was required (473Jm−²) to modulate the emissivity of the devices.
Published Version
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