Pattern-free solar absorber driven by superposed Fabry–Perot resonances

Abstract

the electric field and power dissipation density distributions. The effect of the geometric parameters and materials of multilayer structures on the spectral absorption performance is investigated. Moreover, we discuss the influence of the incidence angle on solar absorbers and demonstrate that an average spectral absorption of more than 80% can be obtained even at a large incidence angle of 60°. Finally, when the number of cells in the multilayer structure is increased to 6, the average spectral absorption can reach 96%. The findings in this work will deepen the understanding of FP resonance and pave a novel path for efficient solar thermal energy utilization.

Topics & Concepts