Solid-state nanocrystalline solar cells with an antimony sulfide absorber deposited by an in situ solid–gas reaction

Abstract

An Sb₂S₃ absorber layer is coated on mesoporous TiO₂ films through a sequential deposition method: SbCl₃ aqueous solution is first deposited, followed by reaction with H₂S gas and further thermal annealing. Under our conditions, the Sb₂S₃-based solid-state heterojunction solar cells yield efficiencies of up to 6.27% at 100 mW cm⁻² AM 1.5 G.