Thomas Kirchartz is currently a professor of electrical engineering and information technol-ogy at the University Duisburg-Essen and the head of the department of Analytics and Simula-tion and the group of Organic and Hybrid Solar Cells at the Research Centre Jülich (Institute for Energy and Climate Research). Previously he was a Junior Research Fellow at Imperial College London. His research interests include all aspects regarding the fundamental under-standing of photovoltaic devices including their characterization and simulation.