AUTHOR=Adam Getachew , Munkhbat Battulga , Denk Patrick , Ulbricht Christoph , Hrelescu Calin , Scharber Markus C. 

TITLE=Different Device Architectures for Bulk-Heterojunction Solar Cells

JOURNAL=Frontiers in Materials

VOLUME=Volume 3 - 2016

YEAR=2016

URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2016.00039

DOI=10.3389/fmats.2016.00039

ISSN=2296-8016

ABSTRACT=We report different solar cell designs which allow a simple electrical connection of subsequent devices deposited on the same substrate. By arranging so-called standard and inverted solar-cell architectures next to each other, a serial connection of the two devices can easily be realized by a single compound electrode. In this work, we tested different interfacial layer materials like polyethylenimine (PEI) and PEDOT:PSS, and silver as a non-transparent electrode material. We also built organic light emitting diodes applying the same device designs demonstrating the versatility of applied layer stacks. The proposed design should allow the preparation of organic bulk-heterojunction modules with minimized photovoltaically inactive regions at the interconnection of individual devices.