Electronic properties of interfaces with conjugated polymers

The project focuses on polymer interfaces that are of direct relevance for organic photovoltaic cells (OPVCs), their function and efficiency. Our goal to provide a complete understanding of the energy levels at all interfaces that occur in polymer/polymer heterojunction photovoltaic cells (i.e. donor polymer/anode, donor/acceptor and acceptor polymer/cathode interfaces) and how these energy levels influence the OPVC energy conversion efficiency.

Principal investigators
Koch, Norbert Prof. Dr. techn. (Details) (Structure, Dynamics and electronic Properties of Molecular Systems)

Participating external organisations

DFG: Sachbeihilfe

Duration of project
Start date: 09/2010
End date: 08/2012

Research Areas
Experimental Condensed Matter Physics

Research Areas
Experimentelle Physik, kondensierte Materie

I. Lange, J. C. Blakesley, J. Frisch, A. Vollmer, N. Koch, D. Neher
"Band Bending in Conjugated Polymer Layers"
Phys. Rev. Lett. 106 (2011) 216402.

J. Frisch, A. Vollmer, J.P. Rabe, N. Koch
"Ultrathin polythiophene films on an intrinsically conducting polymer electrode: Charge
transfer induced valence states and interface dipoles"
Org. Electron. 12 (2011) 916.

U. Aygül, H. Peisert, J. Frisch, A. Vollmer, N. Koch, T. Chassé
"Electronic properties of interfaces between PCPDTBT and prototypical electrodes studied
by photoemission spectroscopy"
ChemPhysChem 12 (2011) 2345.

J. Wagner, M. Gruber, A. Hinderhofer, A. Wilke, B. Bröker, J. Frisch, P. Amsalem, A.
Vollmer, A. Opitz, N. Koch, F. Schreiber, W. Brütting
"High fill factor and open circuit voltage in organic photovoltaic cells with diindenoperylene as
donor material"
Adv. Funct. Mater. 20 (2010) 4295.

Last updated on 2022-08-09 at 03:05