Increased open-circuit voltage of organic solar cells by reduced donor-acceptor interface area

Advanced Materials 26:23 (2014) 3839-3843

Authors:

K Vandewal, J Widmer, T Heumueller, CJ Brabec, MD McGehee, K Leo, M Riede, A Salleo

Abstract:

The charge carrier lifetime in small molecule: C60 photovoltaic devices is increased by reducing the physical interface area availabe for recombination. For donor contents below 10%, the gain in open-circuit voltage (Voc) depends logarithmically on the interface area while the energy of the interfacial charge-transfer state ECT remains invariant. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Coevaporated calcium‐silver metal alloys as contact for highly transparent organic solar cells

Energy Science & Engineering Wiley 2:2 (2014) 77-85

Authors:

Jan Meiss, Hannah Ziehlke, Sylvio Schubert, Karl Leo, Moritz Riede

Increased open-circuit voltage of organic solar cells by reduced donor-acceptor interface area.

Advanced materials (Deerfield Beach, Fla.) 26:23 (2014) 3839-3843

Authors:

Koen Vandewal, Johannes Widmer, Thomas Heumueller, Christoph J Brabec, Michael D McGehee, Karl Leo, Moritz Riede, Alberto Salleo

Built-in voltage of organic bulk heterojuction p-i-n solar cells measured by electroabsorption spectroscopy

AIP Advances AIP Publishing 4:4 (2014) 047134

Authors:

E Siebert-Henze, VG Lyssenko, J Fischer, M Tietze, R Brueckner, M Schwarze, K Vandewal, D Ray, M Riede, K Leo

Low-temperature compatible electrostatic combdrive actuators with integrated graphene

Institute of Electrical and Electronics Engineers (IEEE) (2014) 251-255

Authors:

Matthias Goldsche, Tymofiy Khodkov, Pascal Kaienburg, Christoph Neumann, Christoph Stampfer, Matthias Goldsche, Stefan Trellenkamp, Gregor Mussler, Christoph Stampfer