Passive Radiative Cooling of Silicon Solar Modules with Photonic Silica Microcylinders.

Autor: Akerboom E; Center for Nanophotonics, NWO-Institute AMOLF, Science Park 104, 1098 XGAmsterdam, The Netherlands., Veeken T; Center for Nanophotonics, NWO-Institute AMOLF, Science Park 104, 1098 XGAmsterdam, The Netherlands., Hecker C; Department of Applied Earth Sciences, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, Hengelosestraat 99, 7500 AAEnschede, The Netherlands., van de Groep J; Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, Science Park 904, 1098 XHAmsterdam, The Netherlands., Polman A; Center for Nanophotonics, NWO-Institute AMOLF, Science Park 104, 1098 XGAmsterdam, The Netherlands.
Jazyk: angličtina
Zdroj: ACS photonics [ACS Photonics] 2022 Dec 21; Vol. 9 (12), pp. 3831-3840. Date of Electronic Publication: 2022 Nov 08.
DOI: 10.1021/acsphotonics.2c01389
Abstrakt: Passive radiative cooling is a method to dissipate excess heat from a material by the spontaneous emission of infrared thermal radiation. For a solar cell, the challenge is to enhance PRC while retaining transparency for sunlight above the bandgap. Here, we design a hexagonal array of cylinders etched into the top surface of silica solar module glass to enhance passive radiative cooling. Multipolar Mie-like resonances in the cylinders are shown to cause antireflection effects in the infrared, which results in enhanced infrared emissivity. Using Fourier transform infrared spectrometry we measure the hemispherical reflectance of the fabricated structures and find the emissivity of the silica cylinder array in good correspondence with the simulated results. The microcylinder array increases the average emissivity between λ = 7.5-16 μm from 84.3% to 97.7%, without reducing visible light transmission.
Competing Interests: The authors declare no competing financial interest.
(© 2022 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE
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