Abstract: This disclosure provides systems, methods, and apparatus related to a temperature-adaptive radiative coating for all-season thermal regulation. In one aspect, a device includes a substrate, a metal layer disposed on the substrate, a dielectric layer disposed on the metal layer, and a two-dimensional array of blocks of WxV1-xO2 embedded in the dielectric layer.

Abstract: A structured product, comprising: at least two layers comprising a first layer and a second layer; wherein: the first layer comprises at least one material having a temperature-dependent (e.g., a positive temperature-dependent or a negative temperature-dependent) wavelength-integrated emissivity (?); the second layer comprises at least one reflective material that is reflective to light in an 8-14 ?m wavelength range; and the structured product has a positive temperature-dependent wavelength-integrated emissivity. The structured product is useful in a method for thermal image sensitizing, the method comprising imaging, in an infrared spectrum, the structured product.