A novel in situ hydrothermal preparation route for Sb2S3 and its solar cell application.

Graphical abstract Highlights • Sb 2 S 3 films were in situ fabricated by a facile hydrothermal method. • Efficient planar Sb 2 S 3 solar cells were constructed using this method. • We developed a novel and useful method for fabricating Sb 2 S 3 films and devices. Abstract In this study, we reported a novel in situ hydrothermal approach for fabricating Sb 2 S 3 films. Metal Sb films were first deposited on substrates using room-temperature radio frequency magnetron sputtering and then undergo an in situ transformation to Sb 2 S 3 films through a novel low-temperature hydrothermal reaction. Characteristics of the obtained Sb 2 S 3 films prepared by our method were investigated. Planar Sb 2 S 3 solar cells utilizing in situ fabricated Sb 2 S 3 film as absorber has also been fabricated and yielded a power conversion efficiency of 1.32%. [ABSTRACT FROM AUTHOR]