Dr. Andreas Gombert Profile

Dr. Andreas Gombert

Managing Director at ILFA Feinstleitertechnik GmbH

SPIE Involvement:

Editor | Author

Publications (26)

Proceedings Article | 19 September 2011 Paper

Field performance of Concentrix CPV systems

A. Gombert, C. Crawford, T. Gerstmaier, S. van Riesen, M. Röttger, J. Wüllner

Proc. SPIE. 8108, High and Low Concentrator Systems for Solar Electric Applications VI

KEYWORDS: Energy efficiency, Solar concentrators, Sensors, Glasses, Reliability, Brain-machine interfaces, Fresnel lenses, Climatology, Standards development, Concentrated solar cells

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Proceedings Article | 18 May 2010 Paper

Temperature and wavelength dependent measurement and simulation of Fresnel lenses for concentrating photovoltaics

Thorsten Hornung, Andreas Bachmaier, Peter Nitz, Andreas Gombert

Proc. SPIE. 7725, Photonics for Solar Energy Systems III

KEYWORDS: Light sources, Solar concentrators, Glasses, Solar cells, Silicon, Computer simulations, Ray tracing, Finite element methods, Fresnel lenses, Temperature metrology

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Proceedings Article | 18 May 2010 Paper

Recent progress in concentrator photovoltaics

A. Gombert, I. Heile, J. Wüllner, T. Gerstmaier, S. van Riesen, E. Gerster, M. Röttger, H. Lerchenmüller

Proc. SPIE. 7725, Photonics for Solar Energy Systems III

KEYWORDS: Photovoltaics, Energy efficiency, Solar energy, Solar concentrators, Glasses, Solar cells, Silicon, Brain-machine interfaces, Fresnel lenses, Concentrated solar cells

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Proceedings Article | 8 May 2008 Paper

Directional selectivity and light-trapping in solar cells

Carolin Ulbrich, Stephan Fahr, Marius Peters, Johannes Üpping, Thomas Kirchartz, Carsten Rockstuhl, Jan Christoph Goldschmidt, Philipp Löper, Ralf Wehrspohn, Andreas Gombert, Falk Lederer, Uwe Rau

Proc. SPIE. 7002, Photonics for Solar Energy Systems II

KEYWORDS: Energy efficiency, Optical filters, Solar energy, External quantum efficiency, Sun, Solar cells, Diffusion, Quantum efficiency, Optical coatings, Silicon solar cells

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Proceedings Article | 5 May 2008 Paper

Design of photonic structures for the enhancement of the light guiding efficiency of fluorescent concentrators

M. Peters, J. Goldschmidt, P. Löper, L. Prönneke, B. Bläsi, A. Gombert

Proc. SPIE. 7002, Photonics for Solar Energy Systems II

KEYWORDS: Optical filters, Refractive index, Solar concentrators, Optical spheres, Reflection, Solar cells, Optical coatings, Reflectivity, Photonic crystals, Absorption

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Proceedings Article | 12 May 2006 Paper

Datamining and analysis of the key parameters in organic solar cells

Moritz Riede, Andreas Liehr, Markus Glatthaar, Michael Niggemann, Birger Zimmermann, Tobias Ziegler, Andreas Gombert, Gerhard Willeke

Proc. SPIE. 6197, Photonics for Solar Energy Systems

KEYWORDS: Principal component analysis, Statistical analysis, Organic photovoltaics, Polymers, Solar cells, Manufacturing, Aluminum, Statistical methods, Solar energy systems, Absorption

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Proceedings Article | 12 May 2006 Paper

Organic solar cells with inverted layer sequence incorporating optical spacers: simulation and experiment

Birger Zimmermann, Markus Glatthaar, Michael Niggemann, Moritz Kilian Riede, Tobias Ziegler, Andreas Gombert

Proc. SPIE. 6197, Photonics for Solar Energy Systems

KEYWORDS: Organic photovoltaics, Sun, Electrodes, Metals, Glasses, Solar cells, Optical simulations, Active optics, Near field optics, Absorption

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Proceedings Article | 12 May 2006 Paper

Rigorous validation of the lateral Goos-Hänchen shift in microstructured sun shading systems

Günther Walze, Andreas Gombert, Peter Nitz, Benedikt Bläsi

Proc. SPIE. 6197, Photonics for Solar Energy Systems

KEYWORDS: Diffraction, Prisms, Sun, Interfaces, Electromagnetic radiation, Numerical analysis, Near field, Refraction, Transmittance, Diffraction gratings

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Proceedings Article | 12 May 2006 Paper

Optical near field phenomena in planar and structured organic solar cells

M. Niggemann, T. Ziegler, M. Glatthaar, M. Riede, B. Zimmermann, A. Gombert

Proc. SPIE. 6197, Photonics for Solar Energy Systems

KEYWORDS: Modeling, Organic photovoltaics, Electrodes, Metals, Solar cells, Near field, Aluminum, Organic semiconductors, Near field optics, Absorption

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Proceedings Article | 20 April 2006 Paper

The influence of doping on the performance of organic bulk heterojunction solar cells

Markus Glatthaar, Nicola Mingirulli, Birger Zimmermann, Florian Clement, Moritz Riede, Bas van der Wiel, Michael Niggemann, Andreas Gombert

Proc. SPIE. 6192, Organic Optoelectronics and Photonics II

KEYWORDS: Semiconductors, Neck, Photovoltaics, Annealing, Solar cells, Doping, Diodes, Aluminum, Dielectric spectroscopy, Heterojunctions

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Proceedings Article | 4 October 2005 Paper

Functional substrates for flexible organic solar cells

M. Niggemann, D. Ruf, B. Bläsi, M. Glatthaar, M. Riede, C. Müller, B. Zimmermann, A. Gombert

Proc. SPIE. 5938, Organic Photovoltaics VI

KEYWORDS: Gold, Thin films, Photovoltaics, Holography, Organic photovoltaics, Electrodes, Metals, Solar cells, Resistance, Absorption

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Proceedings Article | 6 May 2005 Paper

Maskless origination of microstructures with optical functions on large areas

Jorg Mick, Andreas Gombert, Benedikt Blasi, Claas Muller

Proc. SPIE. 5751, Emerging Lithographic Technologies IX

KEYWORDS: Optical components, Lithography, Lenses, Polymers, Glasses, Silicon, Photoresist materials, Photomicroscopy, Solar energy systems, Optics manufacturing

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SPIE Journal Paper | 1 November 2004

Some application cases and related manufacturing techniques for optically functional microstructures on large areas

Andreas Gombert, Benedikt Bläsi, Chiristopher Bühler, Peter Nitz, Jörg Mick, Wolfgang Hoßfeld, Michael Niggemann

OE Vol. 43 Issue 11

KEYWORDS: Antireflective coatings, Photoresist materials, Optics manufacturing, Lithography, Compound parabolic concentrators, Sun, Refractive index, Diffusers, Solar cells, Polymers

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Proceedings Article | 8 September 2004 Paper

Large-area origination and replication of microstructures with optical functions

Andreas Gombert, Karen Forberich, Benedikt Blasi, Jorg Mick, Wolfgang HoBfeld, Volker Kubler, Volkmar Boerner

Proc. SPIE. 5454, Micro-Optics: Fabrication, Packaging, and Integration

KEYWORDS: Lithography, Optical properties, Polymers, Ultraviolet radiation, Nickel, Coating, Manufacturing, Photoresist materials, Transmittance, Photoresist developing

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Proceedings Article | 29 December 2003 Paper

Replicated microstructures with optical functions in solar and display applications

Andreas Gombert, Benedikt Blasi, Christopher Buehler, Peter Nitz, Joerg Mick, Wolfgang Hossfeld, Michael Niggemann

Proc. SPIE. 5184, Physics, Theory, and Applications of Periodic Structures in Optics II

KEYWORDS: Lithography, Refractive index, Antireflective coatings, Prisms, Sun, Polymers, Solar cells, Photoresist materials, Diffusers, Compound parabolic concentrators

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Proceedings Article | 26 December 2001 Paper

Periodic microstructures for large area applications generated by holography

Michael Niggemann, Benedikt Blaesi, Volkmar Boerner, Andreas Gombert, Michael Klicker, Volker Kuebler, Philippe Lalanne, Volker Wittwer

Proc. SPIE. 4438, Physics, Theory, and Applications of Periodic Structures in Optics

KEYWORDS: Refractive index, Antireflective coatings, Holography, Polymers, Particles, Nickel, Photoresist materials, Optics manufacturing, Photoresist developing, Diffraction gratings

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Proceedings Article | 7 September 1999 Paper

Reduction of reflection losses at PMMA Fresnel lenses

Heidrun Jaenchen, Ulrike Schulz, Andreas Gombert

Proc. SPIE. 3738, Advances in Optical Interference Coatings

KEYWORDS: Microscopes, Antireflective coatings, Polymethylmethacrylate, Magnesium fluoride, Reflection, Optical coatings, Reflectivity, LCDs, Projection systems, Fresnel lenses

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Proceedings Article | 29 April 1999 Paper

Simulation and optimization of holographically exposed photoresist gratings

Ch. Zanke, Andreas Gombert, Andreas Erdmann, M. Weiss

Proc. SPIE. 3729, Selected Papers from International Conference on Optics and Optoelectronics '98

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Proceedings Article | 1 September 1995 Paper

Depolarization effects in ellipsometric measurements of thick layers

Konstantin Forcht, Ralph Joerger, Andreas Gombert, Michael Koehl, Wolfgang Graf

Proc. SPIE. 2554, Growth and Characterization of Materials for Infrared Detectors II

KEYWORDS: Superposition, Thin films, Ellipsometry, Refractive index, Polarization, Reflection, Opacity, Glasses, Silicon, Reflectivity

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Proceedings Article | 23 August 1995 Paper

Advanced windows with a wide range in solar transmittance

Volker Wittwer, Andreas Gombert, Wolfgang Graf, Michael Koehl

Proc. SPIE. 2531, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIV

KEYWORDS: Refractive index, Antireflective coatings, Solar energy, Switching, Glasses, Silver, Transmittance, Sol-gels, Prototyping, Absorption

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Proceedings Article | 23 August 1995 Paper

Measurement of the hemispherical reflectance and transmittance at variable angles of incidence

Andreas Gombert, Josef Steinhart, C. Sanowski, Konstantin Forcht, Franz Brucker, Wolfgang Graf, Michael Koehl

Proc. SPIE. 2531, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIV

KEYWORDS: Solar energy, Optical spheres, Sensors, Error analysis, Germanium, Reflectivity, Polarizers, Diodes, Transmittance, Integrating spheres

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Proceedings Article | 9 September 1994 Paper

Optical properties and morphology of thin sputtered silver layers

Lothar Herlitze, Rolf Blessing, Andreas Gombert, Wolfgang Graf, Michael Koehl

Proc. SPIE. 2255, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII

KEYWORDS: Oxides, Optical properties, Glasses, Spectroscopy, Ultraviolet radiation, Silver, Optical coatings, Transmittance, Bismuth, Solar energy systems

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Proceedings Article | 9 September 1994 Paper

Atomic-force microscope images of silica carbogel

Bruno Chevalier, Jean-Luc Chevalier, A. Borne, Frederic Chollet, Andreas Gombert, E. Elaloui

Proc. SPIE. 2255, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII

KEYWORDS: Microscopes, Silica, Visualization, Scattering, Particles, Resistance, Rayleigh scattering, Transmittance, Atomic force microscope, 3D image processing

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Proceedings Article | 9 September 1994 Paper

Characterization of a-C:H/W and a-C:H/Cr solar selective absorber coatings

R. Gampp, P. Gantenbein, Y. Kuster, Paul Reimann, R. Steiner, P. Oelhafen, Stefan Brunold, Ulrich Frei, Andreas Gombert, Ralph Joerger, Wolfgang Graf, Michael Koehl

Proc. SPIE. 2255, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII

KEYWORDS: Carbon, Methane, Argon, Metals, Copper, Tungsten, Optical coatings, Reflectivity, Chromium, Scanning electron microscopy

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Proceedings Article | 9 September 1994 Paper

Evaluation and modeling of the optical properties of molybdenum particles in ceramic/metal composites

Ralph Joerger, Konstantin Forcht, Andreas Gombert, Wolfgang Graf, A. Heinzel, Michael Koehl, U. Weimar

Proc. SPIE. 2255, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII

KEYWORDS: Oxides, Refractive index, Multilayers, Optical properties, Metals, Particles, Composites, Electrons, Molybdenum, Tin

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Proceedings Article | 25 November 1992 Paper

Regular and random surface microstructures as antireflection coatings for solar absorbers

A. Borne, Andreas Gombert, Wolfgang Graf, Michael Koehl, Volker Wittwer

Proc. SPIE. 1727, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Selective Materials, Concentrators and Reflectors, Transparent Insulation and Superwindows

KEYWORDS: Mirrors, Antireflective coatings, Scattering, Sputter deposition, Glasses, Optical coatings, Reflectivity, Aluminum, Molybdenum, Tin

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