Optics and Photonics Journal

Volume 6, Issue 8 (August 2016)

ISSN Print: 2160-8881   ISSN Online: 2160-889X

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Stainless-Steel Thin Film as Passive Radiative Cooling Materials

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DOI: 10.4236/opj.2016.68021    1,599 Downloads   2,363 Views  Citations


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.

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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.

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