Stefaan De Wolf

Professor, Material Science and Engineering
Interim Associate Director, KAUST Solar Center.
Chair, Material Science and Engineering Program

Physical Science and Engineering Division
Center membership : 
KAUST Solar Center

KAUST Photovoltaics Laboratory


Education Profile

  • ​​ PhD, Katholieke Universiteit Leuven, Belgium, 2005
  • MSc, Ghent University, Belgium, 1997

Research Interests

​Stefaan De Wolf's expertise lies in the science and technology of photovoltaics for terrestrial applications. His research focuses on the fabrication of high-efficiency silicon-based solar cells, with specific attention to the fundamental understanding of interface structures and electrical contact formation, relevant to solar cells and electronic devices. 
He is also interested in new device architectures and applications, such as back-contacted solar cells and silicon-based multi-junction solar cells, aimed at the improved utilization of the full solar spectrum for electricity generation. A prime example of these devices are perovskite-silicon tandem solar cells.

Selected Publications

  • ​C. Battaglia, A. Cuevas, and S. De Wolf, Crystalline Silicon Photovoltaics: Status and Perspectives, Energy Environ. Sci. 9, 1552 (2016).
  • J. Bullock, M. Hettick, J. Geissbuehler, A.J. Ong, T. Allen, C. Sutter-Fella, T. Chen, H. Ota, E.W. Schaler, R.S. Fearing, S. De Wolf, C. Ballif, A. Cuevas, and A. Javey, Efficient silicon solar cells with dopant-free asymmetric heterocontacts, Nature Energy 1, 15031 (2016). 
  • J. Werner, C.H. Weng, A. Walter, L. Fesquet, J.P. Seif, S. De Wolf, B. Niesen, and C. Ballif, Efficient Monolithic Perovskite/Silicon Tandem Solar Cell with Cell Area > 1 cm2 , J. Phys. Chem. Lett. 7, 161 (2016).
  • S. De Wolf, J. Holovsky, S.-J. Moon, P. Löper, B. Niesen, M. Ledinsky, F.-J. Haug, J.-H Yum, and C. Ballif, Organometallic halide perovskites: sharp absorption edge and implications for photovoltaic applications, J. Phys. Chem. Lett. 5, 1035 (2014).
  • S. De Wolf and M. Kondo, Nature of doped a-Si:H/c-Si:H interface recombination, J. Appl. Phys. 105, 103707 (2009).

From Faculty In Focus Series