Eintrag in der Universitätsbibliographie der TU Chemnitz
Volltext zugänglich unter
URN: urn:nbn:de:bsz:ch1-qucosa2-994692
Sgarbi Stabellini, Francesca
Leistner, Karin (Prof. Dr.) ; Zabinski, Piotr (Prof. Dr.) (Gutachter)
Electrodeposition of Copper in Magnetic Field Gradients of Micrometer- to Nanometer-size Templates
Kurzfassung in englisch
The electrodeposition of 3D-structured copper in micrometer- to nanometer-size magnetic field gradients could offer significant advantages in cost-efficiency and scalability over conventional fabrication techniques for micro- and nanoscale devices. While earlier studies have demonstrated the feasibility of copper electrodeposition in micrometer-size gradients, the systematic downscaling of such magnetic field gradients remains largely unexplored. This raises key questions: To what extent can magnetoelectrodeposition be downscaled? What challenges arise, and how can they be addressed?This work investigates the influence of magnetic field gradients on copper electrodeposition, beginning with process optimization in millimeter-size gradients and advancing toward systematic downscaling to micrometer size. To fabricate 3D copper structures, electrodeposition was carried out under varying potentials to enhance deposit quality and control morphology. Co/Pt thin film multilayers were subsequently examined as templates for copper electrodeposition in nanometer-size magnetic field gradients. Key outcomes of this research include the successful fabrication of 3D copper deposits using magnetic field gradients on the scale of hundreds of micrometers. The use of more negative deposition potentials was found to enhance the structural definition of these deposits. Moreover, the study demonstrated that both the shape and surface morphology of copper structures can be effectively tuned by adjusting the magnetic field gradient size and the potential. In the final stage, Co/Pt thin film multilayers were investigated. While only cyclic voltammetry revealed preliminary differences between magnetic states, the results represent an initial step toward copper electrodeposition in highly localized nanometer-size magnetic field gradients. Due to limited reproducibility and the small sample size, further experiments are needed to improve statistical significance and validate these early observations. Nevertheless, this work marks an important starting point for advancing magnetic field-assisted nanoscale fabrication.
| Universität: | Technische Universität Chemnitz | |
| Institut: | Professur Elektrochemische Sensorik und Energiespeicherung | |
| Fakultät: | Fakultät für Naturwissenschaften | |
| Dokumentart: | Dissertation | |
| Betreuer: | Leistner, Karin (Prof. Dr.) | |
| DOI: | doi:10.60687/2025-0164 | |
| SWD-Schlagwörter: | Galvanische Abscheidung , Magnetismus , Elektrochemie , Dünne Schicht | |
| Freie Schlagwörter (Englisch): | Magnetoelectrodeposition , Electrodeposition potentials , Structured copper electrodeposition , Magnetic field gradients , Co/Pt thin film multilayers | |
| DDC-Sachgruppe: | Chemie | |
| Sprache: | englisch | |
| Tag der mündlichen Prüfung | 22.09.2025 | |
| OA-Lizenz | CC BY 4.0 |
