[wiggler00m]

Various potential applications in biomedical, environmental, and energy fields.[1] Could improve the efficiency of solar thermal power stations:

"Control over the absorption spectral range of surfaces is of major importance for a wide range of applications, such as selective solar absorbers, thermal emitters, structural colouring water condensation and daytime and night-time radiative cooling. In particular, for a solar-thermal energy absorber operating at high temperature, the absorber should be an SSA since the main cooling mechanism is thermal radiation... an ideal solar light absorber has nearly 100% absorbance within the solar spectrum and negligible thermal emittance within the blackbody radiation spectral range at mid-to-high temperatures (100–500 °C), i.e., an SSA. SSAs can thus maximise the temperature of solar absorbers and increase the efficiency of a heat engine driven by solar radiation."

[1] https://www.nature.com/articles/s41377-020-0242-y (full text paper)