Guest staff

F. Gunkel (Felix)

Associate Professor (Guest)
TNW-NEM-IMS
felix.gunkel@utwente.nl
+31534896186
Business card

My research focuses on defect formation processes and defect characterization in nanoscaled oxides such as thin films, heterostructures, and superlattices. It is our major goal to understand and exploit ionic materials and respectie defect structures for the nanoscale control of electronic, magnetic, electrocatalytic, and mass transport properties.

Expertise

  • Material Science

    • Oxide Compound
    • Thin Films
    • Oxygen Vacancy
    • Heterojunction
    • Oxygen Evolution
    • Energy Levels
    • Nanoparticle

  • Chemistry

    • Dioxygen

Organisations

My research group "Oxide interface electronics and mesoscopic energy materials" focuses on defect formation processes and defect characterization in nanoscaled oxides such as thin films, heterostructures, and superlattices. It is our major goal to understand and exploit ionic materials and respectie defect structures for the nanoscale control of electronic, magnetic, electrocatalytic, and mass transport properties. My research at Peter Grünberg Institute, Forschungszentrum Jülichl, directly links to the IMS research at University of Twente, at which my major focus will be on the understanding of defect structure in semiconductor-grade functional oxide thin films and devices.

further links:

Research group for 'Oxide interface electronics and mesoscopic energy materials' at Peter Grünberg Institute 7, Forschungszentrum Jülich, Germany

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Publications

2026

Extrinsic and Intrinsic Charge Transfer at Interfaces of Membrane-Based Oxide Heterostructures (2026)Advanced electronic materials. Article e00890 (E-pub ahead of print/First online). Nayak, K., Wohlgemuth, M. A., Kaus, A., Heymann, L., Sarantopoulos, A., Huang, L.-K., Baeumer, C., Dittmann, R. & Gunkel, F.https://doi.org/10.1002/aelm.202500890Interfacial Atomic and Electronic Structures of LSM/YSZ Thin Films as Models for SOC Air Electrodes (2026)ChemElectroChem, 13(6). Article e202500343. Ali, H., König, P., Tran, X. Q., Kaus, A., Türk, H., Hammud, A., Gheisari, Z., Vibhu, V., Roddatis, V., Schmidt, F.-P., Blume, R., Zeller, P., Frömling, T., Gunkel, F., Knop-Gericke, A., Reuter, K., Eichel, R.-A., Scheurer, C. & Lunkenbein, T.https://doi.org/10.1002/celc.202500343From Thin Films to Nanodots: Bottom-Up Integration of Fe3O4 on Nb:STO for Functional Oxide Nanostructures (2026)Advanced materials, 38(10). Article e17938. Xu, Y., Bednarski-Meinke, C., Liu, Y.-P., Wang, E., Qdemat, A., Yuan, P., Vogl, L. M., Schöffmann, P., Saerbeck, T., Yin, C., Dehm, G., Gunkel, F., Dittmann, R., Petracic, O. & Hamed, M. H.https://doi.org/10.1002/adma.202517938Material sustainability evaluation of electrocatalysts in early-stage research: Case study on La0.6Sr0.4CoO3-δ and La0.6Ca0.4FeO3-δ in alkaline water electrolysis (2026)Materials Today Sustainability, 34. Article 101329 (E-pub ahead of print/First online). Heymann, L., Schreiber, A., Pithan, C., Baeumer, C. & Gunkel, F.https://doi.org/10.1016/j.mtsust.2026.101329Topotactic Phase Transition in Epitaxial La0.7Sr0.3MnO3-δ Films Induced by Oxygen Getter Assisted Thermal Annealing (2026)Small, 22(7). Article e10577. Yin, C., Cao, L., Bai, X., He, S., Zhang, H., Duchoň, T., Gunkel, F., Zhou, Y., Wang, M., Kaus, A., Jo, J., Dunin-Borkowski, R. E., Zhou, S., Brückel, T. & Petracic, O.https://doi.org/10.1002/smll.202510577Spin Matters: A Multidisciplinary Roadmap to Understanding Spin Effects in Oxygen Evolution Reaction During Water Electrolysis (2026)Advanced energy materials, 16(4). Article e03556. van der Minne, E., Vensaus, P., Ratovskii, V., Hariharan, S., Behrends, J., Franchini, C., Fransson, J., Dhesi, S. S., Gunkel, F., Gossing, F., Katsoukis, G., Kramm, U. I., Lingenfelder, M., Lan, Q., Kolen'ko, Y. V., Li, Y., Mohan, R. R., McCord, J., Ni, L., … Baeumer, C.https://doi.org/10.1002/aenm.202503556Atomic-Scale Insights into Nanoparticle Exsolution at Dislocations in Dislocation-Engineered Catalysts (2026)Advanced materials, 38(1). Article e02362. Weber, M. L., Kindelmann, M., Jennings, D., Hölschke, J., Dittmann, R., Mayer, J., Rheinheimer, W., Fang, X. & Gunkel, F.https://doi.org/10.1002/adma.202502362In-Operando Friction Force Microscopy Reveals Degradation and Repassivation of Epitaxial Perovskites During Oxygen Evolution Reaction Under Dynamic Cycling Conditions (2026)ChemElectroChem, 13(2). Article e202500426. Maksumov, M., Kaus, A., Kleiner, K., Gunkel, F., Eichel, R.-A. & Hausen, F.https://doi.org/10.1002/celc.202500426

2025

Chemical termination and interfacial redox behavior of freestanding SrTiO3 (2025)Scientific reports, 15(1). Article 35238. Wohlgemuth, M. A., Nayak, K., Kaus, A., Heymann, L., Huang, L.-K., Sarantopoulos, A., Thomsen, J. D., Dunin-Borkowski, R. E., Rouco, V., Santamaría, J., Dittmann, R. & Gunkel, F.https://doi.org/10.1038/s41598-025-15902-zDirect atomic-scale investigation of the coarsening mechanisms of exsolved catalytic Ni nanoparticles (2025)Nature communications, 16(1). Article 6830. Jennings, D., Weber, M. L., Meise, A., Binninger, T., Price, C. J., Kindelmann, M., Reimanis, I., Matsumoto, H., Cao, P., Dittmann, R., Kowalski, P. M., Heggen, M., Guillon, O., Mayer, J., Gunkel, F. & Rheinheimer, W.https://doi.org/10.1038/s41467-025-61971-z

Research profiles

Courses academic year 2025/2026

Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.

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