High-Speed Fe Plating Using DES-Based Plating Baths

Recently, we reported magnetic Fe films plated in Deep-Eutectic-Solvent-based plating baths, and clarified that a DES is one of attractive solvents due to high plating rate (approx. 120 μm/h) and high current efficiency (> 90 %) [1]. In order to further increase the plating rate, we focused on the current density during the plating. In the present study, we investigated the effect of the current density on plating rate, magnetic properties and surface roughness of the Fe film.