Fig. 4From: Custom-Shaped Organic Photovoltaic Modules—Freedom of Design by PrintingIV-characteristics and photographs of OPV leaf modules. Areas I–III represent the different module areas (area I: upper leaf area with the size of 7.5 cm2, areas II and II both with the size of 21.8 cm2 located under the upper leaf module) of four individual OPV leavesBack to article page