Synthesis of Cu2SnSe3–Au heteronanostructures with optoelectronic and photocatalytic properties

Abstract

Cu₂SnSe₃–Au heteronanostructures have been successfully synthesized for the first time using a seed-mediated growth method. Such new Cu₂SnSe₃–Au heteronanostructures demonstrate enhanced and broadened optical absorption in the Vis-NIR region. We have also investigated the optoelectronic and photocatalytic properties of the Cu₂SnSe₃–Au heteronanostructures and proposed a mechanism to illustrate the improved photocurrent and photocatalytic performance as compared to bare Cu₂SnSe₃.