Infrared reflective coatings for building and automobile glass windows for heat protection

M. A. Butt; S. A. Fomchenkov; N. L. Kazanskiy; A. Ullah; R. Z. Ali; M. Habib

doi:10.1117/12.2270646

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6 April 2017 Infrared reflective coatings for building and automobile glass windows for heat protection

M. A. Butt, S. A. Fomchenkov, N. L. Kazanskiy, A. Ullah, R. Z. Ali, M. Habib

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Proceedings Volume 10342, Optical Technologies for Telecommunications 2016; 103420O (2017) https://doi.org/10.1117/12.2270646
Event: XIV International Scientific and Technical Conference on Optical Technologies in Telecommunications, 2016, Samara, Russian Federation

Abstract

Sunlight can be used a source of light in buildings and automobiles, however infrared wavelengths in sunlight result in heating. In this work, Infrared Reflective Coatings are designed using thin films to transmit visible wavelengths 400~700 nm while reflecting infrared wavelengths above 700 nm. Three different design approaches have been used, namely single layer of metal, sandwich structure and multilayer design. Four metals (Ag, Au, Al and Cu) and two dielectrics (TiO₂ and SiO₂) are used in this study. Designs with Ag show maximum reflection of Infrared wavelengths in all designs. Sandwich structures of TiO₂-Ag-TiO₂ on substrate with 22 nm of thickness for each layer show the maximum transmission of 87% in the visible region and maximum reflection of Infrared wavelengths.

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M. A. Butt, S. A. Fomchenkov, N. L. Kazanskiy, A. Ullah, R. Z. Ali, and M. Habib "Infrared reflective coatings for building and automobile glass windows for heat protection ", Proc. SPIE 10342, Optical Technologies for Telecommunications 2016, 103420O (6 April 2017); https://doi.org/10.1117/12.2270646

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