• Editor and panel assignments

• Elected Member of the DFG Review Board for Materials Science (Term 2020-2024)
• Editor of the Journal "Journal of Crystal Growth" (Elsevier B.V.) since 2020
• Associate Editor of the Journal "Progress in Crystal Growth and Characterization of Materials" (Elsevier B.V.) since 2014
• Guest Editor of the Journal of Electronic Materials for the Proceedings of the DRIP XVIII conference (Berlin 2019)
• Guest Editor of the Journal Physica Status Solidi A for the Proceedings of the EMRS Fall Meeting 2016 Symposium F
• Guest Editor of the Journal of Crystal Growth for the Proceedings of the conference ICCG-18 (Nagoya 2016)

Reviewer for scientific journals

Reviewer of over 340 papers for 75 scientific journals, including

Very high engagement (> 40 reviews)

• Crystal Research and Technology (Wiley-VCH)
• Journal of Crystal Growth (Elsevier)

High engagement (> 10 reviews)

• Applied Physics Letters (American Inst of Physics)
• Journal of Applied Physics (American Inst of Physics)
• Journal of Alloys and Compounds (Elsevier)
• Thin Solid Films (Elsevier)

Reviews for other journals

• ACS Omega (American Chemical Society)
• Advanced Materials (Wiley)
• AIP Advances (American Inst of Physics)
• Applied Physics Express (IOP Publishing)
• Applied Surface Science (Elsevier)
• Canadian Journal of Physics (Canadian Science Publishing)
• Ceramics International (Elsevier)
• Chinese Optics Letters (Optica)
• Coatings (MDPI)
• Crystals (MDPI)
• Crystal Growth & Design (American Chemical Society)
• CrystEngComm (Royal Society of Chemistry)
• Dalton Transactions (Royal Society of Chemistry)
• ECS Journal of Solid State Science and Technology (The Electrochemical Society)
• ECS Solid State Letters (The Electrochemical Society)
• Frontiers of Information Technology & Electronic Engineering (Springer/Zhejiang Univ)
• Industrial & Engineering Chemistry Research (American Chemical Society)
• Inorganic Chemistry (American Chemical Society)
• Japanese Journal of Applied Physics (IOP Publishing)
• Journal of Applied Crystallography (Wiley/IUCr)
• Journal of Chemical Information and Modeling (American Chemical Society)
• Journal of Electronic Materials (Springer Nature)
• Journal of Luminescence (Elsevier)
• Journal of Materials Chemistry C (RSC)
• Journal of Materials Research (MRS/Cambridge/Springer)
• Journal of Physics and Chemistry of Solids (Elsevier)
• Journal of Physics: Condensed Matter (IOP Publishing)
• Journal of Physics D: Applied Physics (IOP Publishing)
• Journal of Quantum Electronics (IEEE)
• Journal of the Ceramic Society of Japan
• Journal of The Electrochemical Society
• Journal of the European Ceramic Society
• Journal of Inorganic Materials (Shanghai Inst of Ceramics CAS)
• Materials (MDPI)
• Materials Advances (RSC)
• Materials Chemistry and Physics (Elsevier)
• Materials Horizons (RSC)
• Materials Research Bulletin (Elsevier)
• Materials Research Express (IOP Publishing)
• Materials Science Forum (TransTech Publications)
• Materials Science and Engineering B (Elsevier)
• Materials Science in Semiconductor Processing (Elsevier)
• Materials Today Communications (Elsevier)
• Metallurgical and Materials Transactions B (ASM/TMS/Springer)
• Modern Physics Letters B (World Scientific)
• Nature Communications (Springer Nature)
• New Journal of Chemistry (RSC)
• Optics Letters (OSA Publishing)
• Optics Express (OSA Publishing)
• Physica Scripta (IOP Publishing)
• Physica Status Solidi A (Wiley-VCH)
• Physica Status Solidi B (Wiley-VCH)
• Physica Status Solidi C (Wiley-VCH)
• Physica Status Solidi RRL (Wiley-VCH)
• Powder Diffraction (ICDD/Cambridge Univ Press)
• Progress in Crystal Growth and Characterization of Materials (Elsevier)
• Rare Metals (Springer Nature)
• Radiation Effects and Defects in Solids (Taylor & Francis)
• Reviews on Advanced Materials Science (De Gruyter)
• RSC Advances (Royal Society of Chemistry)
• Science China Materials (Springer Nature)
• Scientific Reports (Springer Nature)
• Semiconductor Science and Technology (IOP Publishing)
• Solid State Ionics (Elsevier)
• Surface and Coatings Technology (Elsevier)
• Turkish Journal of Electrical Power and Energy Systems (CIGRE)
• Thermochimica Acta (Elsevier)
• IEEE Transactions on Electron Devices
• Zeitschrift für Metallkunde: International Journal of Materials Research (DGM/Hanser)

Evaluation and review of research projects

• Reviewer for applications to
  • the DFG (Germany),
  • the Helmholtz-Gemeinschaft (Germany),
  • the AiF (Germany),
  • the SNFS (Switzerland),
  • the NCN (Poland),
  • the GACR (Czech Rep.),
  • the KAUST (Saudi Arabia),
  • the International Organization for Crystal Growth (IOCG),
  • the US Department of Energy (DoE).
• Reviews to university in-house project proposals and US professor awards: see Public activities.
• Review of PhD and student theses: see Student and PhD theses.