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|1. (WO2018020160) SOLID-STATE THERMOCHROMIC DEVICE, AND METHOD FOR PRODUCING SAID DEVICE|
|Applicants:||COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
CENTRE NATIONAL D'ETUDES SPATIALES
VERDALET GUARDIOLA, Xavier
|Title:||SOLID-STATE THERMOCHROMIC DEVICE, AND METHOD FOR PRODUCING SAID DEVICE|
The invention relates to a solid-state thermochromic device comprising a stack, said stack sucessively comprising, from a rear face to a front face exposed to solar radiation: a) a solid substrate consisting of an inorganic material resistant up to a temperature of 550°C, particularly to a temperature of 540°C, for example up to a temperature of 500 °C; b) an infrared-reflective layer consisting of an electronic conductive material; c) electronic insulating interface layers; d) an electronic insulating inorganic dielectric layer transparent to infrared radiation, consisting of cerium oxide CeO2, and having a thickness of between 400 and 900 nm, preferably between 700 and 900 nm; e) electronic insulating interface layers; f) a layer of an infrared-active thermochromic material which is an n-doped vanadium oxide VO2, and crystallised in a monoclinic or rutile phase, with a thickness of between 30 and 50 nm; and g) a solar-reflective solar-protective coating transparent to infrared radiation. The invention also relates to a method for producing said device.