Metal-dielectric frequency-selective surface for high performance solar window coatings

Fatima Toor; Ananda Carl Guneratne; Marina Temchenko

doi:10.1117/12.2211179

14 March 2016 Metal-dielectric frequency-selective surface for high performance solar window coatings

Fatima Toor, Ananda Carl Guneratne, Marina Temchenko

Proceedings Volume 9756, Photonic and Phononic Properties of Engineered Nanostructures VI; 97561S (2016) https://doi.org/10.1117/12.2211179
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

We demonstrate a solar control window film consisting of metallic nanoantennas designed to reflect infrared (IR) light while allowing visible light to pass through. The film consists of a capacitive frequency-selective surface (CFSS) which acts as a band-stop filter, reflecting only light at target wavelengths. The designed CFSS when installed on windows will lower air conditioning costs by reflecting undesired wavelengths of light and thus reduce the amount of heat that enters a building. State-of-the-art commercial solar control films consist of a multilayer stack which is costly (~$13/m² to $40/m²) to manufacture and absorbs IR radiation, causing delamination or glass breakage when attached to windows. Our solar control film consists of a nanostructured metallic layer on a polyethylene terephthalate (PET) substrate that reflects IR radiation instead of absorbing it, solving the delamination problem. The CFSS is also easy to manufacture with roll-to-roll nanoimprint lithography at a cost of <$12/m². We design the CFSS using the COMSOL Wave Optics module to solve for electromagnetic wave propagation in optical media via the finite element method. The simulation domain is reduced to a single unit cell with periodic boundary conditions to account for the symmetries of the planar, periodic CFSS. The design is optimized using parametric sweeps around the various geometric components of the metallic nanoantenna. Our design achieves peak reflection of 80% at 1000 nm and has a broadband IR response that will allow for optimum solar control without significantly affecting the transmission of visible light.

Citation Download Citation

Fatima Toor, Ananda Carl Guneratne, and Marina Temchenko "Metal-dielectric frequency-selective surface for high performance solar window coatings", Proc. SPIE 9756, Photonic and Phononic Properties of Engineered Nanostructures VI, 97561S (14 March 2016); https://doi.org/10.1117/12.2211179

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available