Screen-printed electrode for further development of perovskite solar modules

Emerging Photovoltaic Technologies

In the research topic Emerging Photovoltaic Technologies, our work focuses on the following fields of work:

 

Dye and Perovskite Solar Cells

 

Organic Solar Cells

 

Photon Management

 

Tandem Solar Cells on Crystalline Silicon

At Fraunhofer ISE research is performed on Emerging Photovoltaic Technologies: dye and perovskite solar cells, organic solar cells, photon management as well as tandem solar cells on crystalline silicon. With these new technologies, we aim to open up new potential for optimization in photovoltaics and thus reduce electricity generation costs.

This includes increasing the efficiency of conventional solar cells made of crystalline silicon using advanced photon management to improve the absorption and reflection properties.

Approaches using alternative processes and materials are also part of our work. Dye and organic solar cells, for example, have lower efficiencies than conventional cells yet are much cheaper to manufacture. Our research in organic solar cells focuses on the fundamental properties of selective contacts. We are investigating the realization of contacts that are extremely thin and made of cost-effective starting materials which remain stable over a long period of time. Together with industry partners, Fraunhofer ISE develops stable coating and encapsulation processes on their in-house roll-to-roll coating unit.

In our research on perovskite solar cells, we are working to improve the stability. Our long-standing experience with upscaling dye solar modules serves us well here.

Tandem silicon solar cells enable us to use the solar spectrum more effectively by reducing the thermalization losses.  We at Fraunhofer ISE are researching different sub-cell concepts for these solar cells.

Selected Research Projects

 

PeroTec

Scalable perovskite technology

 

PersiST

Perovskite-silicon tandem solar cells

 

NaLuWiLeS

Nano-structures for luminescence amplification to increase the efficiency value of LEDs and solar cells

 

MehrSi

High-efficiency III-V Multi-Junction Solar Cells on Silicon

Uli Würfel

Contact Press / Media

Dr. Uli Würfel

Emerging Photovoltaic Technologies, Organic Solar Cells

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 203-4796

Contact Press / Media

Dr. Andreas Hinsch

Dye and Perovskite Solar Cells

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5417

Jan Christoph Goldschmidt

Contact Press / Media

Dr. Jan Christoph Goldschmidt

Photon Management

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5475

Contact Press / Media

Dr. Stefan Janz

Tandem Solar Cells on Crystalline Silicon

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5261

Publications

 

Current Journal and Book Articles

further Journal and Book Articles [publica.fraunhofer.de]

YearTitle/AuthorDocument Type
2017Characterizing the degradation of PDMS stamps in nanoimprint lithography
Tucher, N.; Höhn, O.; Hauser, H.; Müller, C.; Bläsi, B.
Journal Article
2017Nondestructive probing of perovskite silicon tandem solar cells using multiwavelength photoluminescence mapping
Mundt, L.; Heinz, F.D.; Albrecht, S.; Mundus, M.; Saliba, M.; Correa-Baena, J.P.; Anaraki, E.H.; Korte, L.; Rech, B.; Grätzel, M.; Hagfeldt, A.; Schubert, M.C.; Glunz, S.W.
Journal Article
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
2017Optical analysis of a III-V-nanowire-array-on-Si dual junction solar cell
Chen, Y.; Höhn, O.; Tucher, N.; Pistol, M.-E.; Anttu, N.
Journal Article
2017Organic solar cells: Extraction of physical parameters by means of markov chain Monte Carlo techniques
Raba, A.; Leroy, Y.; Kohlstädt, M.; Würfel, U.; Cordan, A.-S.
Journal Article
2017Positive side of disorder: Statistical fluorene-carbazole-TTBTBTT terpolymers show improved optoelectronic and photovoltaic properties compared to the regioregular structures
Akkuratov, A.; Mühlbach, S.; Susarova, D.K.; Seßler, M.; Zimmermann, B.; Razumov, V.F.; Würfel, U.; Troshin, P.A.
Journal Article
2017Reliable and lightning-safe monitoring of wind turbine rotor blades using optically powered sensors
Worms, K.; Klamouris, C.; Wegh, F.; Meder, L.; Volkmer, D.; Philipps, S.P.; Reichmuth, S.K.; Helmers, H.; Kunadt, A.; Vourvoulakis, J.; Bett, A.W.; Koos, C.; Freude, W.; Leuthold, J.; Stork, W.
Journal Article
2016Characterization of perovskite solar cells: Towards a reliable measurement protocol
Zimmermann, E.; Wong, K.K.; Müller, M.; Hu, H.; Ehrenreich, P.; Kohlstädt, M.; Würfel, U.; Mastroianni, S.; Mathiazhagan, G.; Hinsch, A.; Gujar, T.P.; Thelakkat, M.; Pfadler, T.; Schmidt-Mende, L.
Journal Article
2016Comparative analysis of upconversion efficiencies in fluoride materials for photovoltaic application
Favilla, E.; Cittadino, G.; Veronesi, S.; Tonelli, M.; Fischer, S.; Goldschmidt, J.C.; Cassanho, A.; Jenssen, H.P.
Journal Article
2016Enhanced upconversion quantum yield near spherical gold nanoparticles - a comprehensive simulation based analysis
Fischer, S.; Kumar, D.; Hallermann, F.; Plessen, G. von; Goldschmidt, J.C.
Journal Article
2016Formation of silicon nanocrystals in silicon carbide using flash lamp annealing
Weiss, C.; Schnabel, M.; Prucnal, S.; Hofmann, J.; Reichert, A.; Fehrenbach, T.; Skorupa, W.; Janz, S.
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
2016Monolithic Si nanocrystal/crystalline Si tandem cells involving Si nanocrystals in SiC
Schnabel, M.; Canino, M.; Schillinger, K.; Löper, P.; Summonte, C.; Wilshaw, P.R.; Janz, S.
Journal Article
2016Nanoparticle Scattering for Multijunction Solar Cells: The Tradeoff between Absorption Enhancement and Transmission Loss
Mellor, A.; Hylton, N.P.; Hauser, H.; Thomas, T.; Lee, K.-H.; Al-Saleh, Y.; Giannini, V.; Braun, A.; Loo, J.; Vercruysse, D.; Van Dorpe, P.; Blasi, B.; Maier, S.A.; Ekins-Daukes, N.J.
Journal Article
2016Optical Modeling of Honeycomb Textures for Multicrystalline Silicon Solar Cells
Peters, I.; Hauser, H.; Tucher, N.; Bläsi, B.
Journal Article
2016Silicon nanocrystals embedded in silicon carbide as a wide-band gap photovoltaic material
Lopez-Vidrier, J.; Löper, P.; Schnabel, M.; Hernandez, S.; Canino, M.; Summonte, C.; Janz, S.; Garrido, B.
Journal Article
2016Systematic analysis of diffuse rear reflectors for enhanced light trapping in silicon solar cells
Pfeffer, F.; Eisenlohr, J.; Basch, A.; Hermle, M.; Lee, B.G.; Goldschmidt, J.C.
Journal Article
2016Upconversion in a Bragg structure: Photonic effects of a modified local density of states and irradiance on luminescence and upconversion quantum yield
Hofmann, C.; Herter, B.; Fischer, S.; Gutmann, J.; Goldschmidt, J.C.
Journal Article
2015Absorption and emission of silicon nanocrystals embedded in SiC: Eliminating Fabry-Pérot interference
Schnabel, M.; Summonte, C.; Dyakov, S.; Lopez-Conesa, L.; Löper, P.; Janz, S.; Wilshaw, P.R.; Canino, M.
Journal Article
2015Analysing the effect of crystal size and structure in highly efficient CH3NH3Pbl3 perovskite solar cells by spatially resolved photo- and electroluminescence imaging
Mastroianni, S.; Heinz, F.D.; Im, J.-H.; Veurman, W.; Padilla, M.; Schubert, M.C.; Würfel, U.; Grätzel, M.; Park, N.-G.; Hinsch, A.
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
2015Charge transport in nanocrystalline SiC with and without embedded Si nanocrystals
Schnabel, M.; Canino, M.; Kühnold-Pospischil, S.; Lopez-Vidrier, J.; Klugermann, T.; Weiss, C.; Lopez-Conesa, L.; Zschintzsch-Dias, M.; Summonte, C.; Löper, P.; Janz, S.; Wilshaw, P.R.
Journal Article
2015Cloaked contact grids on solar cells by coordinate transformations: Designs and prototypes
Schumann, M.F.; Wiesendanger, S.; Goldschmidt, J.C.; Bläsi, B.; Bittkau, K.; Paetzold, U.W.; Sprafke, A.; Wehrspohn, R.B.; Rockstuhl, C.; Wegener, M.
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
2015Development of nanoimprint processes for photovoltaic applications
Hauser, H.; Tucher, N.; Tokai, K.; Schneider, P.; Wellens, C.; Volk, A.; Seitz, S.; Benick, J.; Barke, S.; Dimroth, F.; Müller, C.; Glinsner, T.; Bläsi, B.
Journal Article
2015Effects of angular confinement and concentration to realistic solar cells
Höhn, O.; Kraus, T.; Schwarz, U.T.; Bläsi, B.
Journal Article
2015Enhanced energy conversion of up-conversion solar cells by the integration of compound parabolic concentrating optics
Arnaoutakis, G.E.; Marques-Hueso, J.; Ivaturi, A.; Fischer, S.; Goldschmidt, J.C.; Krämer, K.W.; Richards, B.S.
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
2015Fluorescent concentrators for photovoltaic applications
Goldschmidt, J.C.; Prönneke, L.; Büchtemann, A.; Gutmann, J.; Steidl, L.; Dyrba, M.; Wiegand, M.-C.; Ahrens, B.; Wedel, A.; Schweizer, S.; Bläsi, B.; Zentel, R.; Rau, U.
Book 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
2015Light-trapping in solar cells by directionally selective filters
Ulbrich, C.; Peters, M.; Fahr, S.; Üpping, J.; Kirchartz, T.; Rockstuhl, C.; Goldschmidt, J.C.; Gerber, A.; Lederer, F.; Wehrspohn, R.B.; Bläsi, B.; Rau, U.
Book Article
2015Matrix formalism for light propagation and absorption in thick textured optical sheets
Eisenlohr, J.; Tucher, N.; Höhn, O.; Hauser, H.; Peters, M.; Kiefel, P.; Goldschmidt, J.C.; Bläsi, B.
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
2015Phosporus diffusion in nanocrystalline 3C-SiC
Schnabel, M.; Bakr Siddique, A.; Janz, S.; Wilshaw, P.R.
Journal Article
2015Rear side diffractive gratings for silicon wafer solar cells
Peters, M.; Hauser, H.; Bläsi, B.; Kroll, M.; Helgert, C.; Fahr, S.; Wiesendanger, S.; Rockstuhl, C.; Kirchartz, T.; Rau, U.; Mellor, A.; Steidl, L.; Zentel, R.
Book Article
2015Rear side sphere gratings for improved light trapping in crystalline silicon single junction and silicon-based tandem solar cells
Eisenlohr, J.; Lee, B.G.; Benick, J.; Feldmann, F.; Drießen, M.; Milenkovic, N.; Bläsi, B.; Goldschmidt, J.C.; Hermle, M.
Journal Article
2015Record efficient upconverter solar cell devices with optimized bifacial silicon solar cells and monocrystalline BaY2F8:30% Er3+ upconverter
Fischer, S.; Favilla, E.; Tonelli, M.; Goldschmidt, J.C.
Journal Article
2015Self-assembled silicon nanocrystal arrays for photovoltaics
Schnabel, M.; Weiss, C.; Löper, P.; Wilshaw, P.R.; Janz, S.
Journal Article
2015Stability assessment of alternative platinum free counter electrodes for dye-sensitized solar cells
Yun, S.; Lund, P.D.; Hinsch, A.
Journal Article
2015Structural parameters effect on the electrical and electroluminescence properties of silicon nanocrystals/SiO2 superlattices
Lopez-Vidrier, J.; Berencen, Y.; Hernandez, S.; Mundet, B.; Gutsch, S.; Laube, J.; Hiller, D.; Löper, P.; Schnabel, M.; Janz, S.; Zacharias, M.; Garrido, B.
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
2015Up-conversion materials for enhanced efficiency of solar cells
Goldschmidt, J.C.; Fischer, S.; Steinkemper, H.; Herter, B.; Wolf, S.; Hallermann, F.; Plessen, G. von; Johnson, J.; Ahrens, B.; Miclea, P.-T.; Schweizer, S.
Book Article
2015Upconversion for photovoltaics - A review of materials, devices and concepts for performance enhancement
Goldschmidt, J.C.; Fischer, S.
Journal Article
2015Upconverting core-shell nanocrystals with high quantum yield under low irradiance: On the role of isotropic and thick shells
Fischer, S.; Johnson, N.J.J.; Pichaandi, J.; Goldschmidt, J.C.; Veggel, F.C.J.M. van
Journal Article
This publication list has been generated from the publication database Fraunhofer-Publica.

Current Lectures and Conference Papers

further Lectures and Conference Papers [publica.fraunhofer.de]

YearTitle/AuthorDocument Type
2017Interference and nanoimprint lithography for the patterning of large areas
Tucher, N.; Hauser, H.; Höhn, O.; Kübler, V.; Wellens, C.; Müller, C.; Bläsi, B.
Conference Paper
2016Coloured module glass for BIPV inspired by morpho butterfly
Bläsi, B.; Kroyer, T.; Höhn, O.; Ferrara, C.; Kuhn, T.E.
Conference Paper
2016Comprehensive analysis of photonic effects on up-conversion of β-NaYF4:Er3+ nanoparticles in an organic-inorganic hybrid 1D photonic crystal
Hofmann, C.; Fischer, S.; Reitz, C.; Richards, B.S.; Goldschmidt, J.C.
Conference Paper
2016Impact of charge carrier transport and electrode selectivity on the performance of organic solar cells: Presentation held at European Materials Research Society, E-MRS Fall Meeting 2016, Warsaw, Poland, September 19 to 22, 2016
Würfel, U.; Spies, A.; List, M.; Kohlstädt, M.
Presentation
2016Impact of charge carrier transport and electrode selectivity on the performance of (organic) solar cells: Presentation held at International Conference on Simulation of Organic Electronics and Photovoltaics, SimOEP 2016, Zurich, Switzerland, 14.-16. September 2016
Würfel, U.; Spies, A.; List, M.; Kohlstädt, M.
Presentation
2016Large area patterning using interference and nanoimprint lithography
Bläsi, B.; Tucher, N.; Höhn, O.; Kübler, V.; Kroyer, T.; Wellens, C.; Hauser, H.
Conference Paper
2016Minority carrier lifetime limitations in Si wafer solar cells with gallium phosphide window layers
Janz, S.; Feifel, M.; Ohlmann, J.; Benick, J.; Weiss, C.; Hermle, M.; Bett, A.W.; Dimroth, F.; Lackner, D.
Conference Paper
2016Rear side gratings for silicon solar cells: Efficiency enhancement finally demonstrated
Bläsi, B.; Tucher, N.; Eisenlohr, J.; Lee, B.G.; Benick, J.; Hauser, H.; Hermle, M.; Goldschmidt, J.C.
Conference Paper
2015Development of NIL processes for PV applications
Hauser, H.; Tucher, N.; Tokai, K.; Schneider, P.; Wellens, C.; Volk, A.; Barke, S.; Müller, C.; Glinsner, T.; Bläsi, B.
Conference Paper
2015Rear side sphere gratings for improved light trapping in crystalline silicon single junction and silicon-based tandem solar cells
Eisenlohr, J.; Lee, B.G.; Benick, J.; Feldmann, F.; Drießen, M.; Milenkovic, N.; Bläsi, B.; Goldschmidt, J.C.; Hermle, M.
Journal Article
2014Assessment of a photovoltaic thermal (PVT) prefabricated facade
Katsifaraki, A.; Bueno, B.; Kuhn, T.E.; Maurer, C.
Conference Paper
2014Electrical and electroluminescence properties of silicon nanocystals/SiO2 superlattices
López-Vidrier, J.; Berencén, Y.; Mundet, B.; Hernández, S.; Gutsch, S.; Hiller, D.; Löper, P.; Schnabel, M.; Janz, S.; Zacharias, M.; Garrido, B.
Conference Paper
2014Electrical and optical characterisation of silicon nancrystals embedded in SiC
Schnabel, M.; Löper, P.; Canino, M.; Dyakov, S.A.; Allegrezza, M.; Bellettato, M.; Lopez-Vidrier, J.; Hernandez, S.; Summonte, C.; Garrido, B.; Wilshaw, P.R.; Janz, S.
Conference Paper
2014Front side antireflection concepts for silicon solar cells with diffractive rear side structures
Bett, A.; Eisenlohr, J.; Höhn, O.; Bläsi, B.; Benick, J.; Repo, P.; Savin, H.; Goldschmidt, J.C.; Hermle, M.
Conference Paper
2014Introduction to in-situ produced perovskite solar cells: A new concept towards lowest module manufacturing costs
Hinsch, A.; Mastroianni, S.; Brandt, H.; Heinz, F.; Schubert, M.C.; Veurman, W.
Conference Paper
2014Novel light trapping concepts for crystalline silicon solar cells using diffractive rear side structures
Eisenlohr, J.; Tucher, N.; Bett, A.; Hauser, H.; Graf, M.; Benick, J.; Goldschmidt, J.; Bläsi, B.; Hermle, M.
Conference Paper
2014Organic upconverters embedded in a Bragg structure
Hofmann, C.; Herter, B.; Gutmann, J.; Löffler, J.; Fischer, S.; Wolf, S.; Piper, R.; Ekins-Daukes, N.J.; Treat, N.; Goldschmidt, J.C.
Conference Paper
2014The photonic solar cell. System design and efficiency estimations
Höhn, O.; Kraus, T.; Schwarz, U.T.; Bläsi, B.
Conference Paper
2014Record efficient upconverter solar cell devices
Goldschmidt, J.C.; Fischer, S.; Herter, B.; Fröhlich, B.; Krämer, K.W.; Richards, B.S.; Ivaturi, A.; MacDougall, S.K.W.; Marques Hueso, J.; Favilla, E.; Tonelli, M.
Conference Paper
2014Study of plasmonic nanoparticle arrays for photon management in solar cells
Bläsi, B.; Jüchter, S.; Meisenheimer, S.-K.; Höhn, O.; Hauser, H.; Wellens, C.
Conference Paper
2013Integrating diffractive rear side structures for light trapping into crystalline silicon solar cells
Eisenlohr, J.; Hauser, H.; Benick, J.; Mellor, A.; Bläsi, B.; Goldschmidt, J.; Hermle, M.
Conference Paper
2013Novel silicon nanocrystal materials for photovoltaic applications
Weiss, C.; Janz, S.; Rumpel, M.; Schnabel, M.; Löper, P.
Conference Paper
2013Optoelectronic Characterization of SiC with Embedded Si Nanocrystals as Solar Cell Absorber Material
Löper, P.; Valenta J.; Canino M.; Glunz S.; Janz S.; Zacharias M.
Conference Paper
2013Parameter study on UV-induced degradation of dye-sensitized solar cells
Flarup Jensen, K.; Veurman, W.; Brandt, H.; Im, C.; Wilde, J.; Hinsch, A.
Conference Paper
2013Photonic band gap engineering of solar cells
Höhn, O.; Kraus, T.; Zilk, M.; Schwarz, U.T.; Bläsi, B.
Conference Paper
2013Photonic structures for enhanced upconversion
Herter, B.; Wolf, S.; Fischer, S.; Gutmann, J.; Bläsi, B.; Goldschmidt, J.C.
Conference Paper
2013Plasmonic particles arrays on large areas for photon management
Jüchter, S.; Meisenheimer, S.-K.; Hauser, H.; Wellens, C.; Höhn, O.; Kübler, V.; Fix, T.; Schwarz, U.T.; Bläsi, B.
Conference Paper
2013Predicting the performance of photonic luminescent solar concentrators
Gutmann, J.; Zappe, H.; Goldschmidt, J.C.
Conference Paper
2013Processing and characterisation of tandem solar cells from crystalline silicon materials
Janz, S.; Schnabel, M.; Löper, P.; Summonte, C.; Canino, M.; Lopez-Vidrier, J.; Hernandez, S.; Garrido, B.; Glunz, S.W.
Conference Paper
2013Spectral splitting module geometry that utilizes light trapping
Goldschmidt, J.C.; Do, C.; Peters, M.; Goetzberger, A.
Conference Paper
2013Stability of UV illuminated dye sensitized solar cells (DSC) studied by photoinduced absorption in the second range
Flarup Jensen, K.; Brandt, H.; Im, C.; Wilde, J.; Hinsch, A.
Conference Paper
2013Status of the dye solar cell technology (DSC) as a guideline for further research
Hinsch, A.
Conference Paper
This publication list has been generated from the publication database Fraunhofer-Publica.