CZTS thin film solar cells on flexible Molybdenum foil by electrodeposition-annealing route

• DOI: 10.1007/s10800-020-01494-1
• Publication Date: 2020-11-02T10:21:46Z
• Authors: M. I. Khalil; R. Bernasconi; A. Lucotti; A. Le Donne; R. A. Mereu; S. Binetti; J. L. Hart; M. L. Taheri; L. Nobili; L. Magagnin
• Keywords: Kesterite

Abstract Earth-abundant and non-toxic Kesterite-based Cu 2 ZnSnS 4 (CZTS) thin film solar cells are successfully fabricated on flexible Molybdenum (Mo) foil substrates by an electrodeposition-annealing route. A well-adherent, densely packed, homogeneous, compact, mirror-like CZT precursor is initially produced through electrodeposition using a rotating working electrode. Subsequently, the co-electrodeposited CuZnSn (CZT) sulfurized in quartz tube furnace at 550 °C for h N atmosphere with presence of elemental sulfur order to form CZTS. Different characterization techniques like XRD, SEM, HR-TEM, Raman, Photoluminescence demonstrate that almost phase-pure CZTS formed after sulfurization. Al/Al-ZnO/i-ZnO/CdS/CZTS/Mo cell produced, where CdS deposited chemical bath deposition transparent conducting oxide (TCO) DC sputtering. The device shows 0.55% power conversion efficiency Mo substrate it constitutes first prototype this kind route without any surface modification substrate. Graphic abstract