Synthesis of Cu3BiS3 nanosheet films on TiO2 nanorod arrays by a solvothermal route and their photoelectrochemical characteristics

Abstract

This paper presents an investigation on the synthesis and characterization of Cu₃BiS₃ nanosheet films on a TiO₂/FTO substrate by a solvothermal route and the photoelectrochemical characteristics of the Cu₃BiS₃/TiO₂ composite films are demonstrated as well. The results show that Cu₃BiS₃ nanosheets with an average thickness of 30 nm were successfully synthesized on the surface of TiO₂ nanorod arrays. The photoelectric properties of the Cu₃BiS₃/TiO₂ composite film indicate that the fill factor of the film photoelectrode is 60.8%, and the energy conversion efficiency is 1.281%, which is higher than that of a bare TiO₂ nanorod array photoelectrode.