UV-VIS-NIR luminescence properties of an intense 5d broadband sensitized Eu2SiS4:Er3+ suitable for solar spectral converter

Eu2SiS4:Er3+ has broadband absorptions ranging from 250 nm to 550 nm which can efficiently facilitate the UV-green part of the solar photon flux spectrum and exhibits intense NIR emission of Er3+, perfectly matching the maximum spectral response of Si solar cells.128