Dr. Stefan Fischer Profile

Dr. Stefan Fischer

at Karlsruhe Institute of Technology

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Publications (9)

Proceedings Article | 18 April 2016 Paper

Comprehensive analysis of photonic effects on upconversion of β-NaYF4:Er3+ nanoparticles in an organic-inorganic hybrid 1D photonic crystal

C. L. Hofmann, S. Fischer, C. Reitz, B. Richards, J. Goldschmidt

Proceedings Volume 9885, 98851A (2016) https://doi.org/10.1117/12.2227121

KEYWORDS: Upconversion, Photonic crystals, Photovoltaics, Nanoparticles, Polymethylmethacrylate, Luminescence, Absorption, Solar cells, Energy, Energy conversion efficiency, Titanium dioxide, Photonic crystals, Refractive index, Photons, Reflectivity, Atomic layer deposition

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Proceedings Article | 15 May 2014 Paper

Photon management with luminescent materials and photonic structures

J. Goldschmidt, S. Fischer, Benjamin Fröhlich, J. Gutmann, B. Herter, C. Hofmann, J. Löffler, Frank C. J. van Veggel, S. Wolf

Proceedings Volume 9140, 91400G (2014) https://doi.org/10.1117/12.2052507

KEYWORDS: Upconversion, Solar cells, Sun, External quantum efficiency, Silicon solar cells, Solar energy, Nanoparticles, Erbium, Absorption, Luminescence

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Proceedings Article | 15 May 2014 Paper

Organic upconverters embedded in a Bragg structure

C. Hofmann, B. Herter, J. Gutmann, J. Löffler, S. Fischer, S. Wolf, R. Piper, N. Ekins-Daukes, N. Treat, J. Goldschmidt

Proceedings Volume 9140, 91400H (2014) https://doi.org/10.1117/12.2052286

KEYWORDS: Polymethylmethacrylate, Upconversion, Absorption, Photons, Luminescence, Refractive index, Refraction, Molecules, Solar energy, Solar cells

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Proceedings Article | 7 March 2014 Paper

Upconverter materials and upconversion solar-cell devices: simulation and characterization with broad solar spectrum illumination

S. Fischer, B. Fröhlich, A. Ivaturi, B. Herter, S. Wolf, K. Krämer, B. Richards, J. Goldschmidt

Proceedings Volume 8981, 89810B (2014) https://doi.org/10.1117/12.2039407

KEYWORDS: Upconversion, Photons, Solar cells, Absorption, Energy transfer, Solar energy, Lamps, Quantum efficiency, Silicon solar cells, Ions

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Proceedings Article | 25 September 2013 Paper

Photonic structures for enhanced upconversion

B. Herter, S. Wolf, S. Fischer, J. Gutmann, B. Bläsi, J. Goldschmidt

Proceedings Volume 8824, 88240A (2013) https://doi.org/10.1117/12.2023845

KEYWORDS: Upconversion, Absorption, Luminescence, Quantum efficiency, Photons, Refractive index, Solar energy, Ions, Silicon, Energy transfer

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Proceedings Article | 2 May 2012 Paper

Concepts to enhance the efficiency of upconversion for solar applications

S. Fischer, H. Steinkemper, K. Krämer, J. Goldschmidt

Proceedings Volume 8438, 843806 (2012) https://doi.org/10.1117/12.922183

KEYWORDS: Upconversion, Photons, Absorption, Ions, Solar energy, Phonons, Solar cells, Quantum efficiency, Doping, Gold

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Proceedings Article | 2 May 2012 Paper

Effects of photonic structures on upconversion

B. Herter, S. Wolf, S. Fischer, M. Peters, B. Bläsi, J. C. Goldschmidt

Proceedings Volume 8438, 84381D (2012) https://doi.org/10.1117/12.922490

KEYWORDS: Upconversion, Quantum efficiency, Photonic crystals, Absorption, Erbium, Refractive index, Finite-difference time-domain method, Ions, Structured photonic materials, Silicon solar cells

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Proceedings Article | 8 February 2012 Paper

Increasing upconversion by metal and dielectric nanostructures

J. C. Goldschmidt, S. Fischer, H. Steinkemper, B. Herter, T. Rist, S. Wolf, B. Bläsi, F. Hallermann, G. von Plessen, K. Krämer, D. Biner, M. Hermle

Proceedings Volume 8256, 825602 (2012) https://doi.org/10.1117/12.910915

KEYWORDS: Upconversion, Nanoparticles, Luminescence, Absorption, Quantum efficiency, Dielectrics, Metals, Gold, Waveguides, Nanostructures

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Proceedings Article | 18 May 2010 Paper

Calculation of up-conversion photoluminescence in Er[sup]3+[/sup] ions near noble-metal nanoparticles

Florian Hallermann, Jan Christoph Goldschmidt, Stefan Fischer, Philipp Löper, Gero von Plessen

Proceedings Volume 7725, 77250Y (2010) https://doi.org/10.1117/12.854426

KEYWORDS: Nanoparticles, Ions, Luminescence, Photons, Near field optics, Metals, Solar energy, Silicon, Electrons, Absorption

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Showing 5 of 9 publications

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