Pure Sulfide Cu₂ZnSnS₄ Thin Film Solar Cells Fabricated by Preheating an Electrodeposited Metallic Stack

High-performance Cu2ZnSnS4-based thin film solar cells with a maximum active-area conversion efficiency of 8% are fabricated by electrochemical deposition of Cu, Sn, and Zn metal precursor layers followed by sulfurization. Preheating treatment for a relatively long time just before the high-temperature sulfurization has a significant effect on the quality of the final Cu2ZnSnS4 films. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.