Flexible, organic solar cell modul

The low material consumption and the application of efficient production technology hold great potential for cost-effective production. Further advantages particularly with a view towards applications include mechanical flexibility and low weight.

Organic Solar Cells

In our work on organic solar cells, we address the whole bandwidth of physical and technological questions concerning organic photovoltaics. This ranges from fundamental understanding of the operating principle of organic solar cells up to the development of cell and module concepts relevant to production. We test and characterize novel organic semiconductors and analyse the efficiency potential on the basis of thorough experimental characterization in combination with optical and electrical modelling. In addition, electrical models enable us to design and optimize different module structures for specific applications. In the laboratory, novel cell and module concepts with a high potential for cost reduction are developed and implemented in roll-to-roll processes.

 

Current publications - Organic Solar Cells:

YearTitle/AuthorDocument Type
2017On the impact of contact selectivity and charge transport on the open-circuit voltage of organic solar cells
Spies, A.; List, M.; Sarkar, T.; Würfel, U.
Journal Article
2016How molecules with dipole moments enhance the selectivity of electrodes in organic solar cells - a combined experimental and theoretical approach
Würfel, U.; Seßler, M.; Unmüßig, M.; Hofmann, N.; List, M.; Mankel, E.; Mayer, T.; Reiter, G.; Bubendorff, J.-L.; Simon, L.; Kohlstädt, M.
Journal Article
2016Laser patterning of vacuum processed small molecular weight organic photovoltaics
Röttinger, S.; Schwarz, B.; Schäfer, S.; Gauch, R.; Zimmermann, B.; Würfel, U.
Journal Article
2015Characterization of tandem organic solar cells
Timmreck, R.; Meyer, T.; Gilot, J.; Seifert, H.; Müller, T.; Furlan, A.; Wienk, M.M.; Wynands, D.; Hohl-Ebinger, J.; Warta, W.; Janssen, R.A.J.; Riede, M.; Leo, K.
Journal Article
2015Charge carrier separation in solar cells
Würfel, U.; Cuevas, A.; Würfel, P.
Journal Article
2015Determining the photocurrent of individual cells within an organic solar module by LBIC and the filtering approach: Experiments and simulations
Reinhardt, J.; Apilo, P.; Zimmermann, B.; Rousu, S.; Würfel, U.
Journal Article
2015Ethanedithiol treatment of solution-processed ZnO thin films: Controlling the intragap states of electron transporting interlayers for efficient and stable inverted organic photovoltaics
Bai, S.; Jin, Y.; Liang, X.; Ye, Z.; Wu, Z.; Sun, B.; Ma, Z.; Tang, Z.; Wang, J.; Würfel, U.; Gao, F.; Zhang, F.
Journal Article
2015Impact of charge transport on current-voltage characteristics and power-conversion efficiency of organic solar cells
Würfel, U.; Neher, D.; Spies, A.; Albrecht, S.
Journal Article
2015Laminated fabric as top electrode for organic photovoltaics
Steim, R.; Chabrecek, P.; Sonderegger, U.; Kindle-Hasse, B.; Siefert, W.; Kroyer, T.; Reinecke, P.; Lanz, T.; Geiger, T.; Hany, R.; Nüesch, F.
Journal Article
2015Layout flexibility for sheet-to-sheet produced flexible ITO-free organic solar modules with organic functional layers slot die coated under ambient atmospheric conditions
Kaduwal, D.; Schleiermacher, H.-F.; Schulz-Gericke, J.; Schiefer, S.; Liang Tan, Y.; Zhang, J.; Zimmermann, B.; Würfel, U.
Journal Article
2015Ordering of PCDTBT revealed by time-resolved electron paramagnetic resonance spectroscopy of its triplet excitons
Biskup, T.; Sommer, M.; Rein, S.; Meyer, D.L.; Kohlstädt, M.; Würfel, U.; Weber, S.
Journal Article
2015Towards continuous junction (CJ) organic electronic devices: Fast and clean post-polymerization modification by oxidation using dimethyldioxirane (DMDO)
Glöcklhofer, F.; Lumpi, D.; Kohlstädt, M.; Yurchenko, O.; Würfel, U.; Fröhlich, J.
Journal Article
2014Applicability of the suns-Voc method on organic solar cells
Schiefer, S.; Zimmermann, B.; Glunz, S.W.; Würfel, U.
Journal Article
2014Circuital model validation for S-shaped organic solar cells by means of impedance spectroscopy
Romero, B.; Pozo, G. del; Arredondo, B.; Reinhardt, J.; Sessler, M.; Würfel, U.
Journal Article
2014Determination of the intrinsic and the injection dependent charge carrier density in organic solar cells using the suns-VOC method
Schiefer, S.; Zimmermann, B.; Würfel, U.
Journal Article
2014Identifying the impact of surface recombination at electrodes in organic solar cells by means of electroluminescence and modeling
Reinhardt, J.; Grein, M.; Bühler, C.; Schubert, M.; Würfel, U.
Journal Article
2014Impedance spectroscopy analysis of small molecule solution processed organic solar cell
Arredondo, B.; Romero, B.; Pozo, G. del; Sessler, M.; Veit, C.; Würfel, U.
Journal Article
2014Improved efficiency of bulk heterojunction hybrid solar cells by utilizing CdSe quantum dot-graphene nanocomposites
Eck, M.; Pham, C. van; Züfle, S.; Neukom, M.; Seßler, M.; Scheunemann, D.; Erdem, E.; Weber, S.; Borchert, H.; Ruhstaller, B.; Krüger, M.
Journal Article
2014Influence of the acceptor on electrical perfomance and charge carrier transport in bulk heterojunction solar cells with HXS-1
Ahme, H.; Lee, M.; Im, C.; Würfel, U.
Journal Article
2014Promising long-term stability of encapsulated ITO-free bulk-heterojunction organic solar cells under different aging conditions
Sapkota, S.B.; Spies, A.; Zimmermann, B.; Dürr, I.; Würfel, U.
Journal Article
2014Systematic variation of the stabilizer to reduce the annealing temperature of sol-gel derived titanium oxide in inverted organic solar cells
Seßler, M.; Kohlstädt, M.; Saeed, A.; Würfel, U.
Journal Article
2013High yield fabrication of vertical interdigital electrodes with sub micrometer distance and their application in an organic photovoltaic device
Stelzl, F.; Schulz-Gericke, J.; Niggemann, M.; Würfel, U.
Journal Article
2013Influence of hole extraction efficiency on the performance and stability of organic solar cells
Ecker, B.; Posdorfer, J.; Hauff, E. von
Journal Article
2013Inverted ITO- and PEDOT:PSS-free polymer solar cells with high power conversion efficiency
Kohlstädt, M.; Grein, M.; Reinecke, P.; Kroyer, T.; Zimmermann, B.; Würfel, U.
Journal Article
2013Layout optimization of organic wrap through solar cells by comined electrical and optical modeling
Schiefer, S.; Zimmermann, B.; Würfel, U.
Journal Article
2013Performance of ITO-free inverted organic bulk heterojunction photodetectors: Comparison with standard device architecture
Arredondo, B.; Dios C. de; Vergaz, R.; Criado, A.R.; Romero, B.; Zimmermann, B.; Würfel, U.
Journal Article
2013The physical meaning of charge extraction by linearly increasing voltage transients from organic solar cells
Hanfland, R.; Fischer, M.; Brütting, W.; Würfel, U.; MacKenzie, R.C.I.
Journal Article
This publication list has been generated from the publication database Fraunhofer-Publica.