Highly efficient and tunable selective absorber design based on metallic nanoparticles in a graded index dielectric

Open Access

Fig. 1

(a) AM1.5 spectrum (solar spectrum at sea level for a solar zenith angle of 48.2°) [10], and blackbody spectrum (in dashed red) corresponding to 1000 K. (b) Desired absorptance spectrum in an ideal absorber case.

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