Performance Enhancement in Powder-Fabricated Cu₂(ZnSn)Se₄ Solar Cell by Roll Compression.

ABSTRACT: Despite the improved conversion efficiency of Cu₂(ZnSn)Se₄ (CZTSe) solar cells, their roll-to-roll fabrication nonetheless leads to low performance. The selenization time and temperature are typically considered major parameters for a powder-based CZTSe film; meanwhile, the importance of the densification during the roll-to-roll process is often overlooked. The densification process is related to the porosity of the light-absorbing layer, where high porosity lowers cell performance. In this study, we fabricated a dense CZTSe absorber layer as a method of controlling the compression of a powder precursor (Cu_1.7(Zn_1.2Sn_1.0)S_4.0 (CZTS)) during the roll-press process. The increased particle packing density of the CZTS layer was

SUBMITTER: Park J 

PROVIDER: S-EPMC9921508 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature