Roland Steim

TL;DR: Procedures for testing organic solar cell devices and modules with respect to stability and operational lifetime are described and generally agreed test conditions and practices are generally agreed to allow ready comparison between laboratories and to help improving the reliability of reported values.

TL;DR: The progress in the development and understanding of interfacial materials for organic photovoltaics (OPV) is reviewed in this article, where both inorganic and organic interface materials are discussed with respect to their function in the OPV device.

TL;DR: In this paper, a nanoscale organic interfacial layer between the indium tin oxide (ITO) and the metal oxide electron-conducting layer was used to improve the power conversion efficiency of inverted organic photovoltaics.

TL;DR: In this paper, a simple physics approach was proposed to predict the behavior of organic solar cells under various illumination intensities through electrical modeling and the combination of simulation and modeling allows to define a set of design rules for OPVs under low light illumination.

TL;DR: In this article, a large number of flexible polymer solar modules comprising 16 serially connected individual cells was prepared at the experimental workshop at Riso DTU and the functional devices were subjected to an inter-laboratory study involving the performance and the stability of modules over time in the dark, under light soaking and outdoor conditions.