“…Finally, we highlight that nanophotonics methods are not only capable of improving the efficiency and stability of PSCs, but also can provide additional aesthetic value for the end users, [215,216] and simultaneously can be utilized in semi-transparent PSCs for energy-saving smart windows. [94,217] Moreover, the applications of nanophotonics are not confined to the field of PSCs alone, as they can be extended to various fields where nanostructures have the capability to modulate desired optical applications, such as imaging, [120,[218][219][220] grating, [221] (non)linear optics, [135] light-emitting diode (LED), [222] super lens, [223] radiative cooling, [198] smart windows, [217] antireflection, [224] photothermal conversion, [225] photochemical transformation, [226][227][228] and biosensing. [229]…”