Glass substrate with nanoimprint

Glass substrate with a photoresist coating structured by nanoimprint lithography (NIL).

Material Research and Optics

In the topic of Material Research and Optics, our fields of work include:

 

Coatings, Technologies and Systems

 

Microstructured Surfaces

 

 

The topic of Material Research and Optics at Fraunhofer ISE covers methods and research areas which are relevant to many business areas at the institute. In particular, we develop optical-functional coatings for different applications, e.g. high temperature resistant absorber tubes for solar thermal power plants or thermal insulating glazings for buildings. Other functions relate to non-optical properties like antisoiling surface tension modifications or prevention of condensation by low infrared emittance. We also have the possibilities to test and analyze the degradation of multi-layer coatings and surfaces with our advanced characterization equipment like Auger spectroscopy with depth profiling or imaging features.

Fraunhofer ISE has both state-of-the-art laboratory equipment and extensive knowledge in the development, manufacture and characterization of coatings and structures. With our custom-designed pilot equipment, we can produce coatings on various substrates as prototypes and in small batch series as well as fabricate and replicate micro and nanostructures.

Werner Platzer

Contact Press / Media

Hon.-Prof. Dr. Werner Platzer

Material Research and Optics

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5983

Contact Press / Media

Wolfgang Graf

Coatings, Technologies and Systems

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5946

Contact Press / Media

Dr. Benedikt Bläsi

Microstructured Surfaces

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5995

Fax +49 761 4588-9995

Publications

 

YearTitle/AuthorDocument Type
2017Photoelectrochromic devices based on sputtered WO3 and TiO2 films
Bogati, S.; Georg, A.; Graf, W.
Journal Article
2017Sputtered Si3N4 and SiO2 electron barrier layer between a redox electrolyte and the WO3 film in electrochromic devices
Bogati, S.; Georg, A.; Graf, W.
Journal Article
2016Benefit of Modern Arc Management in MF Dual Magnetron Sputtering Power Supplies: Stable deposition process for a wide range of materials
Heintze, M.; Kroyer, T.
Journal Article
2016Development and modelling of highly-efficient PVT collectors with low-emissivity coatings
Lämmle, M.; Kroyer, T.; Fortuin, S.; Wiese, M.; Hermann, M.
Journal Article
2016Efficiency increase of crystalline silicon solar cells with nanoimprinted rear side gratings for enhanced light trapping
Eisenlohr, J.; Tucher, N.; Hauser, H.; Graf, M.; Benick, J.; Bläsi, B.; Goldschmidt, J.C.; Hermle, M.
Journal Article
2016Efficient optical analysis of surface texture combinations for silicon solar cells
Tucher, N.; Eisenlohr, J.; Kiefel, P.; Gebrewold, H.; Höhn, O.; Hauser, H.; Müller, C.; Goldschmidt, J.C.; Bläsi, B.
Conference Paper
2016Large area patterning using interference and nanoimprint lithography
Bläsi, B.; Tucher, N.; Höhn, O.; Kübler, V.; Kroyer, T.; Wellens, C.; Hauser, H.
Conference Paper
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
2016Nonradiative lifetime extraction using power-dependent relative photoluminescense of III-V semiconductor double-heterostructures
Walker, A.W.; Heckelmann, S.; Karcher, C.; Höhn, O.; Went, C.; Niemeyer, M.; Bett, A.W.; Lackner, D.
Journal Article
2016Optical Modeling of Honeycomb Textures for Multicrystalline Silicon Solar Cells
Peters, I.; Hauser, H.; Tucher, N.; Bläsi, B.
Journal Article
2016Optical simulation of photovoltaic modules with multiple textured interfaces using the matrix-based formalism OPTOS
Tucher, N.; Eisenlohr, J.; Gebrewold, H.; Kiefel, P.; Höhn, O.; Hauser, H.; Goldschmidt, J.C.; Bläsi, B.
Journal Article
2016Optimal laser wavelength for efficient laser power converter operation over temperature
Höhn, O.; Walker, A.W.; Bett, A.W.; Helmers, H.
Journal Article
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
2016Tetramethylthiourea (TMTU) as an alternative redox mediator for electrochromic devices
Bogati, S.; Georg, A.; Jerg, C.; Graf, W.
Journal Article
2016Wave optical simulation of the light trapping properties of black silicon surface textures
Bett, A.J.; Eisenlohr, J.; Höhn, O.; Repo, P.; Savin, H.; Bläsi, B.; Goldschmidt, J.C.
Journal Article
20153D optical simulation formalism OPTOS for textured silicon solar cells
Tucher, N.; Eisenlohr, J.; Kiefel, P.; Höhn, O.; Hauser, H.; Peters, M.; Müller, C.; Goldschmidt, J.C.; Bläsi, B.
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
2015Crystalline silicon solar cells with enhanced light trapping via rear side diffraction grating
Tucher, N.; Eisenlohr, J.; Hauser, H.; Benick, J.; Graf, M.; Müller, C.; Hermle, M.; Goldschmidt, J.C.; Bläsi, B.
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
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
2015Effects of angular confinement and concentration to realistic solar cells
Höhn, O.; Kraus, T.; Schwarz, U.T.; Bläsi, B.
Journal Article
2015Elektrochrome Systeme: Eine "systematische" Übersicht
Georg, A.
Book 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
2015Honeycomb structure on multicrystalline silicon Al-BSF solar cell with 17.8% efficiency
Volk, A.-K.; Tucher, N.; Seiffe, J.; Hauser, H.; Zimmer, M.; Bläsi, B.; Hofmann, M.; Rentsch, J.
Journal Article
2015Impact of Photon Recycling and Luminescence Coupling in III-V Photovoltaic Devices
Walker, A.; Höhn, O.; Micha, D.; Wagner, L.; Helmers, H.; Dimroth, F.; Bett, A.
Conference Paper
2015Impact of photon recycling and luminescence coupling on III-V single and dual junction photovoltaic devices
Walker, A.W.; Höhn, O.; Micha, D.N.; Wagner, L.; Helmers, H.; Bett, A.W.; Dimroth, F.
Journal Article
2015Impact of photon recycling on GaAs solar cell designs
Walker, A.W.; Höhn, O.; Micha, D.N.; Bläsi, B.; Bett, A.W.; Dimroth, F.
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
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
2015Modelling results of covered PVT collectors regarding low-E coatings and F'
Lämmle, M.; Fortuin, S.; Hermann, M.; Kroyer, T.
Conference Paper
2015Optical properties of textured sheets. An efficient matrix-based modelling approach
Tucher, N.; Eisenlohr, J.; Kiefel, P.; Höhn, O.; Hauser, H.; Peters, M.; Müller, C.; Goldschmidt, J.C.; Bläsi, B.
Conference Paper
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
2015A versatile formalism for optical simulation of textured sheets
Tucher, N.; Eisenlohr, J.; Goldschmidt, J.C.; Bläsi, B.
Journal Article
2015Winkelselektive photonische Strukturen für eine optimierte Strahlungsbilanz in Solarzellen
Höhn, O.
Dissertation
2014Energiesparende funktionelle Beschichtungen von Fluorpolymermembranen
Seifert, W.; Georg, A.; Heintze, M.; Antochin, S.
Conference Paper
2014Feuchtekorrosion von Wärmeschutzschichten auf Basis dünner Silberschichten
Georg, A.
Book Article
2014Flexible high efficiency perovskite solar cells
Roldán-Carmona, C.; Malinkiewicz, O.; Soriano, A.; Mínguez Espallargas, G.; Garcia, A.; Reinecke, P.; Kroyer, T.; Dar, M.I.; Nazeeruddin, M.K.; Bolink, H.J.
Journal Article
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
2014Hexagonal sphere gratings for enhanced light trapping in crystalline silicon solar cells
Eisenlohr, J.; Benick, J.; Peters, M.; Bläsi, B.; Goldschmidt, J.C.; Hermle, M.
Journal Article
2014ITO-free organic solar cells with roll-to-roll coated organic functional layers from non-halogenated solvents
Kaduwal, D.; Schleiermacher, H.-F.; Schulz-Gericke, J.; Kroyer, T.; Zimmermann, B.; Würfel, U.
Journal Article
2014Large area plasmonic nanoparticle arrays with well-defined size and shape
Meisenheimer, S.-K.; Jüchter, S.; Höhn, O.; Hauser, H.; Wellens, C.; Kübler, V.; Hauff, E. von; Bläsi, B.
Journal Article
2014Large-area honeycomb texturing of Si-solar cells via nanoimprint lithography
Tucher, N.; Volk, A.; Seiffe, J.; Hauser, H.; Müller, C.; Bläsi, B.
Conference Paper
2014Maximal power output by solar cells with angular confinement
Höhn, O.; Kraus, T.; Bauhuis, G.; Schwarz, U.T.; Bläsi, B.
Journal Article
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
2014Optoelectronic simulation of GaAs solar cells with angularly selective filters
Kraus, T.; Höhn, O.; Hauser, H.; Bläsi, B.
Journal Article
2014The photonic solar cell. System design and efficiency estimations
Höhn, O.; Kraus, T.; Schwarz, U.T.; Bläsi, B.
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
2013GaAs solar cells close to the thermodynamic limit
Höhn, O.; Kraus, T.; Bauhuis, G.; Schwarz, U.T.; Bläsi, B.
Conference Paper
2013Increased upconversion quantum yield in photonic structures due to local field enhancement and modification of the local density of states - a simulation-based analysis
Herter, B.; Wolf, S.; Fischer, S.; Gutmann, J.; Bläsi, B.; Goldschmidt, J.C.
Journal Article
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
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
2013Nanoimprint lithography for solar cell texturisation: Nanoimprint Lithographie für die Solarzellentexturierung
Hauser, H.
Dissertation
2013Nanoimprinted diffraction gratings for crystalline silicon solar cells: Implementation, characterization and simulation
Mellor, A.; Hauser, H.; Wellens, C.; Benick, J.; Eisenlohr, J.; Peters, M.; Guttowski, A.; Tobias, I.; Marti, A.; Luque, A.; Bläsi, B.
Journal Article
2013Optically switchable coatings: Paper presented at 4th Power Electronics for Plasma Engineering Konferenz 2013, Freiburg, Germany, 22.05.2013-23.05.2013
Georg, A.
Presentation
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
2013Spectrally selective intermediate reflectors for tandem thin-film silicon solar cells
Hoffmann, A.; Paetzold, U.W.; Merdzhanova, T.; Lambertz, A.; Höhn, O.; Ulbrich, C.; Bittkau, K.; Rau, U.
Conference Paper
2013TABSOLAR - Solarabsorber und andere thermisch aktive Bauteile aus Ultrahochleistungsbeton (UHPC)
Hermann, M.; Koch, L.; Lauro, P. di; Hildebrandt, C.; Jerg, C.
Conference Paper
This publication list has been generated from the publication database Fraunhofer-Publica.