Utilizing Solvent Repulsion between Dimethylformamide and Isopropanol to Manipulate Sn Distribution for Bifacial Cu₂ZnSn(S,Se)₄ Solar Cells.

ABSTRACT: Rationalizing the role of chemical interactions in the precursor solutions on the structure, morphology, and performance of thin-film Cu₂ZnSn(S,Se)₄ (CZTSSe) is key for the development of bifacial and other photovoltaic (PV) device architectures designed by scalable solution-based methods. In this study, we uncover the impact of dimethylformamide (DMF) and isopropanol (IPA) solvent mixtures on cation complexation and rheology of the precursor solution, as well as the corresponding morphology, composition, and PV performance of CZTSSe thin-film grown on fluorine-doped tin oxide (FTO). We find that increasing the proportion of IPA leads to a nonlinear increase in dynamic viscosity due to the strong repulsion between DMF and IPA, which is characterized by an interaction

SUBMITTER: Sheppard A 

PROVIDER: S-EPMC11672233 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature