Omar Ait Layachi, Abderrazzak Boudouma, Hala Hrir, Sara Azmi, Yousra Fariat, Imane Battiwa, Asmaa Moujib, El Mati Khoumri
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引用次数: 0
Abstract
In this study, we successfully synthesized semiconductor thin films of Cu2FeSnS4 (CFTS) using the electrodeposition method. We delved into the mechanisms of electrochemical nucleation and growth, shedding light on these processes. Utilizing potentiostatic current-density-time transient measurements and in situ electrochemical impedance spectroscopy (EIS), we explored the nucleation and growth mechanisms of Cu2FeSnS4 (CFTS) thin films, deposited from an aqueous solution under various applied potentials. Cyclic voltammetry was employed to investigate the electrochemical behaviors of Cu-Fe-Sn-S precursors in a trisodium citrate medium. Chronoamperometry and EIS analysis were conducted to delve deeply into the deposition mechanism and surface electrode-electrolyte phenomena. Furthermore, the study explored the impact of Fe2+ concentration on structural morphology and optical properties. X-ray diffraction and Raman analysis unveiled the stannite structure within the obtained Cu2FeSnS4 thin film, alongside the presence of secondary phases in the CFTS elaborated at both lower and higher concentrations of Fe2+. SEM images reveal that the sulfurized CFTS C2 (0.01 M of Fe2+) sample has a surface morphology with irregular particles. EDS mapping and EDX analysis confirm that the elemental concentrations of Cu, Fe, Sn, and S in the CFTS C2 thin films closely match the desired stoichiometry for Cu2FeSnS4. UV-visible spectroscopy revealed a suitable bandgap energy within the range of 1.5 eV for the film deposited with a Fe2+ concentration of 0.01 M.
期刊介绍：
The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry.
The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces.
The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis.
The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.
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