Thermal-stability resonators for visible light full-spectrum perfect absorbers

Ultra-Wideband and Wide-Angle Perfect Solar Energy Absorber Based on Titanium and Silicon Dioxide Colloidal Nanoarray Structure

“…This is because the strong near-field coupling effect usually occurs between adjacent resonators or other plasmon resonances [ 46 , 47 ]. The difference is that there is also a strong plasmon coupling between the substrate and surface structure in Figure 4 c [ 48 , 49 ]. Through these electric field intensity distribution profiles at absorption peaks, we have a good knowledge of the resonance coupling modes of colloidal crystal-array-based solar energy absorber.…”

An ultra-broadband and wide-angle absorber based on a TiN metamaterial for solar harvesting

“…36 In contrast to the common absorber formed by metallic nano-resonant cavities, TiN-based solar absorbers have greater thermal stability. 25 The metamaterial absorber has the first layer of periodic ring arrays that match impedance and reduce light reflection. The period of the ring arrays is L , and d and D are the inner and outer diameters of the rings, respectively, and h 1 is the height of the ring arrays.…”

“…So far, various structures of solar absorbers have been proposed by scholars for the solar radiation spectrum. [21][22][23][24] Zhong et al 25 proposed a semi-cylindrical cavity structure absorber based on refractory materials. The average absorption in the visible region is up to 94%.…”

An ultra-broadband solar absorber based on α-GST/Fe metamaterials from visible light to mid-infrared

“…It achieved an absorption bandwidth reaching 1380 nm. 33 Zhong et al reported a visible light absorber, which can achieve perfect absorption in the visible region. 34 This structure has average absorption reaching 94% in the wavelength range from 380 nm to 760 nm.…”