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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...
A metallic dielectric photonic crystal (MDPhC) is capable of selectively absorbing the entire solar spectrum via cavity modes, shown in red, while reflecting light at longer wavelengths. By doing so, the MDPhC can efficiently convert solar energy into heat for solar thermo‐photovoltaic applications. On page 8041, J. B. Chou, S.‐G. Kim, and co‐workers demonstrate a fabricated wafer‐scale, omnidirectional,...
We investigated the performance of solar thermophotovoltaic (STPV) systems with 2D tantalum (Ta) PhCs using thermophotovoltaic experiments and a high-fidelity thermal electrical system-level model. The experimental data obtained with 1D PhCs matched the predicted results within experimental uncertainty. The model predicts that the absorber-to-electrical efficiency of a planar STPV consisting of an...
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