Author(s)

Mourad Benlattar^1*, El Mostafa Oualim², M’hammed Mazroui¹, Azeddine Mouhsen³, Mohmmed Harmouchi³

¹Laboratoire de Physique de la Matière Condensée, Faculté des sciences Ben M’sik, Université Hassan II, Casablanca, Maroc.
²High School of Technology of Berrechid, Hassan I University, Berrechid, Morocco.
³Faculty of Sciences and Techniques, Hassan 1er University, Settat, Morocco.

Spectrally selective glazing system attracts great attention for energy efficient radiator applications. The present work reports the possibility of a specific shield (Stainless steel/Borosilicate glass) to provide passive cooling for the purpose of reducing the use of classical active method. Radiative cooling devices require a convective shield that blocks all incoming solar radiation, but should selectively reemit radiation in the “atmospheric-window” region. In this study, borosilicate glass substrate coated with a stainless steel thin film was prepared by thermal evaporation and low pressure (6.3 × 10^-3 bar) DC plasma sputtering, in order to achieve the radiative cooling effect. The optical properties of the optimal thickness thin film were measured in the wavelength range of 0.3-20 μm by an OL-750 double-beam spectroradiometer. The thin film has high visible band reflectance with high infrared band emissivity across the full 8-13 μm; which indicates that stainless steel thin film can be used as good radiative cooling material.

Radiative Cooling, Reflectance, Stainless-Steel Thin Film, Optical Properties, Emissivity

Benlattar, M. , Oualim, E. , Mazroui, M. , Mouhsen, A. and Harmouchi, M. (2016) Stainless-Steel Thin Film as Passive Radiative Cooling Materials. Optics and Photonics Journal, 6, 193-202. doi: 10.4236/opj.2016.68021.