In this work, Cu-Zn-Sn (CZT) is co-electrodeposited onto a flexible Mo substrate exploiting an alkaline bath (pH 10). The plating solution is studied by cyclic voltammetry, highlighting the effects of potassium pyrophosphate (K4P2O7) and EDTA-Na2 on the electrochemical behavior and stability of the metallic ionic species. The optimized synthesis results in a homogeneous precursor layer, with composition Cu 44 ± 2 at. %, Zn 28 ± 1 at. %, and Sn 28 ± 2 at. %. Soft and reactive annealing are employed respectively to promote intermetallic phase formation and sulfurization of the precursor to obtain CZTS. Microstructural (XRD, Raman), morphological (SEM), and compositional (EDX, XRF) characterization is carried out on CZT and CZTS films, showing a minor presence of secondary phases. Finally, photo-assisted water splitting tests are performed considering a CZTS/CdS/Pt photoelectrode, showing a photocurrent density of 1.01 mA cm−2 at 0 V vs. RHE under 1 sun illumination. Graphical abstract: [Figure not available: see fulltext.]

Marchi, C., Panzeri, G., Pedrazzetti, L., Khalil, M., Lucotti, A., Parravicini, J., et al. (2021). One-step CZT electroplating from alkaline solution on flexible Mo foil for CZTS absorber. JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 25(6), 1807-1813 [10.1007/s10008-021-04951-9].

One-step CZT electroplating from alkaline solution on flexible Mo foil for CZTS absorber

Panzeri G.;Parravicini J.;Acciarri M.;Binetti S.;
2021

Abstract

In this work, Cu-Zn-Sn (CZT) is co-electrodeposited onto a flexible Mo substrate exploiting an alkaline bath (pH 10). The plating solution is studied by cyclic voltammetry, highlighting the effects of potassium pyrophosphate (K4P2O7) and EDTA-Na2 on the electrochemical behavior and stability of the metallic ionic species. The optimized synthesis results in a homogeneous precursor layer, with composition Cu 44 ± 2 at. %, Zn 28 ± 1 at. %, and Sn 28 ± 2 at. %. Soft and reactive annealing are employed respectively to promote intermetallic phase formation and sulfurization of the precursor to obtain CZTS. Microstructural (XRD, Raman), morphological (SEM), and compositional (EDX, XRF) characterization is carried out on CZT and CZTS films, showing a minor presence of secondary phases. Finally, photo-assisted water splitting tests are performed considering a CZTS/CdS/Pt photoelectrode, showing a photocurrent density of 1.01 mA cm−2 at 0 V vs. RHE under 1 sun illumination. Graphical abstract: [Figure not available: see fulltext.]
Articolo in rivista - Articolo scientifico
Co-electrodeposition; Complexation; CZTS photoelectrode; Flexible molybdenum; Photo-water splitting;
English
1807
1813
7
Marchi, C., Panzeri, G., Pedrazzetti, L., Khalil, M., Lucotti, A., Parravicini, J., et al. (2021). One-step CZT electroplating from alkaline solution on flexible Mo foil for CZTS absorber. JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 25(6), 1807-1813 [10.1007/s10008-021-04951-9].
Marchi, C; Panzeri, G; Pedrazzetti, L; Khalil, M; Lucotti, A; Parravicini, J; Acciarri, M; Binetti, S; Magagnin, L
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/352128
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