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, 26 (47), 8041-5

Enabling Ideal Selective Solar Absorption With 2D Metallic Dielectric Photonic Crystals

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Enabling Ideal Selective Solar Absorption With 2D Metallic Dielectric Photonic Crystals

Jeffrey B Chou et al. Adv Mater.

Abstract

A metallic dielectric photonic crystal with solar broadband, omni-directional, and tunable selective absorption with high temperature stable (1000 °C, 24 hrs) properties is fabricated on a 6" silicon wafer. The broadband absorption is due to a high density of optical cavity modes overlapped with an anti-reflection coating. Results allow for large-scale, low cost, and efficient solar-thermal energy conversion.

Keywords: absorber; cavity modes; photonic crystal; solar; thermophotovoltaic.

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