The present invention discloses a radiative cooling device and a method of manufacturing the same. Specifically, the radiative cooling device according to an embodiment of the present invention includes a reflective layer formed on a substrate and responsible for reflecting sunlight having wavelengths corresponding to ultraviolet, visible, and near-infrared regions; and a radiative cooling layer formed on the reflective layer and responsible for absorbing sunlight having a wavelength corresponding to a mid-infrared region and emitting the sunlight as heat, wherein the radiative cooling layer includes a first radiation layer including an uneven pattern; and a second radiation layer formed on the first radiation layer and having a refractive index different from that of the first radiation layer.

An absorber coating is provided for solar heat power generation that has excellent thermal oxidation resistance and a high spectral absorptance and manufacturing method thereof. The absorber coating for solar heat power generation has a network structure of composite particles comprising: particles of metal oxide containing mainly two or more metals selected from Mn, Cr, Cu, Zr, Mo, Fe, Co and Bi, and titanium oxide partly or entirely coating on the surface of the particle of the metal oxide. The arithmetic mean estimation of the surface of the coating is 1.0 μm or more, and a ratio of a network area of the composite particle to a plane area of the coating is 7 or more.

An absorber coating is provided for solar heat power generation that has excellent thermal oxidation resistance and a high spectral absorptance and manufacturing method thereof. The absorber coating for solar heat power generation has a network structure of composite particles comprising: particles of metal oxide containing mainly two or more metals selected from Mn, Cr, Cu, Zr, Mo, Fe, Co and Bi, and titanium oxide partly or entirely coating on the surface of the particle of the metal oxide. The arithmetic mean estimation of the surface of the coating is 1.0 μm or more, and a ratio of a network area of the composite particle to a plane area of the coating is 7 or more.

A cladding panel that collects and/or emits thermal energy, which includes: a first panel; a second panel with an extrados adhered to an intrados of the first panel, forming a leaktight seal, with a low-relief channel, the channel being attached to the intrados of the first panel to form a conduit; an inlet connector for heat-conducting fluid, connected to a first end of the channel; and an outlet connector for heat-conducting fluid, connected to a second end of the channel, wherein the first panel is made of calibrated laminated ceramic with a flat, smooth intrados and a flat, smooth extrados and has a uniform thickness of 3-6 mm, and the second panel is made of waterproof heat-insulating plastic that is stable up to 120 C.

A cladding panel that collects and/or emits thermal energy, which includes: a first panel; a second panel with an extrados adhered to an intrados of the first panel, forming a leaktight seal, with a low-relief channel, the channel being attached to the intrados of the first panel to form a conduit; an inlet connector for heat-conducting fluid, connected to a first end of the channel; and an outlet connector for heat-conducting fluid, connected to a second end of the channel, wherein the first panel is made of calibrated laminated ceramic with a flat, smooth intrados and a flat, smooth extrados and has a uniform thickness of 3-6 mm, and the second panel is made of waterproof heat-insulating plastic that is stable up to 120 C.

A solar thermal energy device is provided. Also provided is a method of making a solar thermal energy device.

A solar thermal energy device is provided. Also provided is a method of making a solar thermal energy device.

The present invention relates to a solar selective coating for a metal substrate comprising at least one absorber layer and at least one semi-absorber layer selected from the structures of AlTiN and AlTiSiN. In preferred embodiments, the solar selective coating according to the present invention is a double layer coating with AlTiN-AlTiN or AlTiSiN-AlTiSiN formation. The process for producing the coating includes a step of treatment of the metal substrate with a reactive magnetron sputtering system.

The present invention relates to a solar selective coating for a metal substrate comprising at least one absorber layer and at least one semi-absorber layer selected from the structures of AlTiN and AlTiSiN. In preferred embodiments, the solar selective coating according to the present invention is a double layer coating with AlTiN-AlTiN or AlTiSiN-AlTiSiN formation. The process for producing the coating includes a step of treatment of the metal substrate with a reactive magnetron sputtering system.

The present disclosure provides a solution-processed selective solar absorption coating and a process for the preparation thereof.