Advanced Functional Materials and Devices (AFMD) Group

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Determining doping efficiency and mobility from conductivity and Seebeck data of n-doped C60 layers

(2014)

Authors:

Torben Menke, Debdutta Ray, Hans Kleemann, Karl Leo, Moritz Riede
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Exploiting diffusion currents at Ohmic contacts for trap characterization in organic semiconductors

Organic Electronics Elsevier 15:10 (2014) 2428-2432

Authors:

Janine Fischer, Wolfgang Tress, Hans Kleemann, Johannes Widmer, Karl Leo, Moritz Riede
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Direct Electrical Evidence of Plasmonic Near-Field Enhancement in Small Molecule Organic Solar Cells

The Journal of Physical Chemistry C American Chemical Society (ACS) 118:28 (2014) 15128-15135

Authors:

Till Jägeler-Hoheisel, Franz Selzer, Moritz Riede, Karl Leo
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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.
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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
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