Prof. Dr. Roman Fasel

Head of nanotech@surfaces Laboratory
Roman Fasel received his Ph.D. in Physics in 1996 from the University of Fribourg (Switzerland) and joined Empa, the Swiss Federal Laboratories for Materials Science and Technology, after post-doctoral research fellowships at La Trobe University (Melbourne) and the Fritz-Haber-Institute (Berlin). He is the head of the nanotech@surfaces Laboratory of Empa, and adjunct professor at the Department of Chemistry and Biochemistry of the University of Bern. Roman Fasel has a strong background in surface physics and chemistry, and follows an experimental approach building on state-of-the-art scanning probe methods (UHV temperature-controlled STM/STS/nc-AFM) combined with structural and spectroscopic methods based on photoelectron emission (XPS, UPS, XPD). His group’s research covers a wide range of topics at the interface of materials science, surface physics and chemistry. It aims at developing a fundamental understanding of the structural and electronic properties of low-dimensional nanomaterials and systems, and at establishing a rational basis for their application in next generation technologies. Roman Fasel has obtained several Research Fellowships of e.g. the Swiss National Science Foundation, the Alexander-von-Humboldt-Stiftung and the Max-Planck-Gesellschaft. He is recipient of several awards, e.g. Thürler-Reeb Prize and ICSOS Young Scientist Prize and member of the Swiss National Center of Competence in Research (NCCR) Nanoscale Science and board member of the IUVSTA Surface Science Division Committee. He has given numerous invited talks at international conferences and at research institutions and universities world-wide, and has published more than 150 papers in international journals.
Fields of interest

Surface physics and chemistry; Nanostructured materials and surfaces; On-surface synthesis; Carbon-based nanomaterials, Graphene nanoribbons

Selected publications

S. Mishra, D. Beyer, K. Eimre, S. Kezilebieke, R. Berger, O. Gröning, C. A. Pignedoli, K. Müllen, P. Liljeroth, P. Ruffieux, X. Feng, R. Fasel, Topological frustration induces unconventional magnetism in a nanographene, Nat. Nanotechnol. 15, 22–28 (2020). DOI: 10.1038/s41565-019-0577-9

S. Wang, Q. Sun, O. Gröning, R. Widmer, C. A. Pignedoli, L. Cai, X. Yu, B. Yuan, C. Li, H. Ju, J. Zhu, P. Ruffieux, R. Fasel, W. Xu, On-surface synthesis and characterization of individual polyacetylene chains, Nat. Chem. 11, 924-930 (2019). DOI: 10.1038/s41557-019-0316-8

O. Gröning, S. Wang, X. Yao, C. A. Pignedoli, G. Borin Barin, C. Daniels, A. Cupo, V. Meunier, A. Narita, K. Müllen, P. Ruffieux, R. Fasel, Engineering of robust topological quantum phases in graphene nanoribbons, Nature 560, 209–213 (2018). DOI: 10.1038/s41586-018-0375-9

J. P. Llinas, A. Fairbrother, G. Barin, P. Ruffieux, W. Shi, K. Lee, B. Y. Choi, R. Braganza, N. Kau, W. Choi, C. Chen, Z. Pedramrazi, T. Dumslaff, A. Narita, X. Feng, K. Müllen, F. Fischer, A. Zettl, M. Crommie, R. Fasel, J. Bokor, Short-channel field-effect transistors with 9-atom and 13-atom wide graphene nanoribbons, Nature Comm. 8, 633 (2017). DOI: 10.1038/s41467-017-00734-x

P. Ruffieux, S. Wang, B. Yang, C. Sanchez, J. Liu, T. Dienel, L. Talirz, P. Shinde, C. Pignedoli, D. Passerone, T. Dumslaff, X. Feng, K. Müllen, R. Fasel, On-surface synthesis of graphene nanoribbons with zigzag edge topology, Nature 531, 489–492 (2016). DOI : 10.1038/nature17151

J. Cai, C. A. Pignedoli, L. Talirz, P. Ruffieux, H. Söde, L. Liang, V. Meunier, R. Berger, R. Li, X. Feng, K. Müllen, and R. Fasel, Graphene nanoribbon heterojunctions, Nature Nanotechnology  9, 896–900 (2014). DOI : 10.1038/nnano.2014.184

J. Cai, P. Ruffieux, R. Jaafar, M. Bieri, T. Braun, S. Blankenburg, M. Muoth, A. P. Seitsonen, M. Saleh, X. Feng, K. Müllen, and R. Fasel, Atomically precise bottom-up fabrication of graphene nanoribbons, Nature 466, 470–473 (2010). DOI: 10.1038/nature09211

For a complete list of publications since 2001, please click here.

Prof. Dr. Roman Fasel

Prof. Dr. Roman Fasel
Head of nanotech@surfaces Laboratory

Phone: +41 58 765 4348