Fai Tong Si (PhD student) and Ronald van Schie (MSc student) of the research group Photovoltaic Materials and Devices (PVMD) have won the Best Student Award and the Best Poster Award, respectively, at the European solar cell conference (EUPVSEC) in Amsterdam in the field Silicon Photovoltaics. The EUPVSEC is one of the three major and prestigious conferences in the field of photovoltaic solar cells, modules, and systems. These awards underline the high quality of the research conducted in the PVMD research group of the Delft University of Technology, within the facilities of Else Kooi Laboratory. Fai Tong Si worked out the optimal number of solar cells that can be stacked in a multi-junction configuration. Ronald van Schie demonstrated experimentally that making the second cell in a tandem configuration influences the properties of the first cell. Both students are congratulated with the splendid result!