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Mats Fahlman

Professor, Head of Division, Head of Unit

Principal Investigator in Surface Physics and Chemistry, Laboratory of Organic Electronics
Director, Laboratory of Organic Electronics

Presentation

Though my early interests included quantum chemical modeling of electronic structure in condensed organic materials, my research is now centered on experimental studies of semiconducting and conducting organic and hybrid organic systems.

The approach is to do "basic" science on topics of technological importance. A wide variety of surface science techniques are used with emphasis on photoelectron spectroscopy and x-ray absorption, carried out at synchrotron radiation laboratories and using XPS/UPS equipment in our labs.

Publications

2026

Yuguo Zhao, Shoushuang Huang, Yong Yan, Robert Boyd, Zesheng Liu, Mats Fahlman, Mikhail Vagin, Magnus Odén, Emma Björk (2026) Synergistic Effects of Mesoporous Structure and Oxygen Vacancies in SnO2 for Enhanced CO2 Electroreduction Small Science, Vol. 6, Article e70268 (Article in journal) https://dx.doi.org/10.1002/smsc.70268
Tiefeng Liu, Zesheng Liu, Ihor Sahalianov, Qiao He, Sang Young Jeong, Huotian Zhang, Qifan Li, Chiyuan Yang, Junpeng Ji, Lize Bynens, Wouter Maes, Feng Gao, Han Young Woo, Martin Heeney, Glib Baryshnikov, Mats Fahlman, Simone Fabiano (2026) Counterion-Controlled Photocatalytic Doping of Organic Semiconductors Advanced Materials (Article in journal) https://dx.doi.org/10.1002/adma.72947
Tiefeng Liu, Matilde Silveri, Zesheng Liu, Sang Young Jeong, Qiao He, Giannis G. Gkikas, Wenlong Jin, Chiyuan Yang, Tom van der Pol, Feng Zhang, Christina Kousseff, Anna Martinelli, Iain McCulloch, Martin Heeney, Han Young Woo, Alessandro Motta, Mats Fahlman, Simone Fabiano (2026) Gold-activated persulfate p-doping of organic semiconductors Nature Materials (Article in journal) https://dx.doi.org/10.1038/s41563-026-02547-0
Qifan Li, Tiefeng Liu, Jun-Da Huang, Ze-Fan Yao, Dace Gao, Qingqing Wang, Junpeng Ji, Miao Xiong, Xianjie Liu, Sang Young Jeong, Min Gyu Kang, Hanyan Wu, Chiyuan Yang, Han Young Woo, Mats Fahlman, Simone Fabiano (2026) A water-processable n-type polymeric ink with conductivities exceeding 1,000 S cm-1 Matter, Vol. 9, Article 102599 (Article in journal) https://dx.doi.org/10.1016/j.matt.2025.102599
Weidong Li, Xinying Wang, Heng Liu, Qilun Zhang, Xiane Li, Tong Liu, Can Liu, Xiaofeng Xu, Liangmin Yu, Xichang Bao, Xianjie Liu, Iain Mcculloch, Liming Ding, Xinhui Lu, Mats Fahlman, Chuanfei Wang (2026) Facile-processed n-p-type binary cathode interlayers: Concurrent enhancement of photovoltaic performance and mechanical robustness Nano Energy, Vol. 149, Article 111702 (Article in journal) https://dx.doi.org/10.1016/j.nanoen.2026.111702

Research

Surface Physics and Chemistry

The overall goal of our unit is to do basic science on topics that can have a positive impact on society. We do general surface physics and chemistry research related to e.g. energy materials, devices and catalytic processes.

News

Ångströmhuset

Major investment in new equipment for materials research

The Wallenberg Initiative Materials Science for Sustainability, WISE, donates SEK 44 million to Linköping University for new scientific equipment that will contribute to cutting-edge materials research.
Person (Qilun Zhang) in a blue lab coat in the lab.

Wood materials make for reliable organic solar cells

Lignin can be used to create stable and environmentally friendly organic solar cells. Researchers at LiU and KTH have now shown that untreated kraft lignin can be used to improve organic solar cells further.
Xiane Li in the lab.

New light on organic solar cells

Efficient and environmentally friendly solar cells are required for a transition to a fossil-free energy supply. Researchers at LiU have mapped how energy flows in organic solar cells, something that previously had been unknown.

Organisation

Power plant, organic electronics, a red rose.

Laboratory of Organic Electronics

World-leading competence in organic and hybrid materials, from design and modeling to applications in energy, electronics and bioelectronics. Sustainability focus and pipeline from science to commercialization deliver high-impact innovation.
Small colored lights

Department of Science and Technology (ITN)

We research and teach in several technical and scientific disciplines in which our main areas are organic electronics, media, communications and logistics.