Dr. Bernd Ahrens Profile

Dr. Bernd Ahrens

at Fachhochschule Südwestfalen

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Author

Publications (8)

Proceedings Article | 25 May 2022 Presentation + Paper

Double-doped borate glass light guide with high luminance

Michelle Grüne, Bernd Ahrens, Peter Nolte, Stefan Schweizer

Proceedings Volume 12142, 1214209 (2022) https://doi.org/10.1117/12.2621250

KEYWORDS: Terbium, Dysprosium, Glasses, Waveguides, Luminescence, Absorption, Quantum efficiency, Energy transfer, Lanthanides, Ions

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Proceedings Article | 15 May 2014 Paper

Trivalent rare-earth ions as photon down-shifter for photovoltaic applications

Franziska Steudel, Sebastian Loos, Bernd Ahrens, Stefan Schweizer

Proceedings Volume 9140, 91400I (2014) https://doi.org/10.1117/12.2052185

KEYWORDS: Glasses, Quantum efficiency, Ions, Absorption, Doping, Solar cells, Luminescence, Cadmium sulfide, Barium, Ultraviolet radiation

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Proceedings Article | 2 May 2012 Paper

Neodymium-doped barium borate glasses as fluorescent concentrators for the infrared spectral range

Marcel Dyrba, Marie-Christin Wiegand, Bernd Ahrens, Stefan Schweizer

Proceedings Volume 8438, 84380Z (2012) https://doi.org/10.1117/12.921771

KEYWORDS: Glasses, Luminescence, Silver, Barium, Solar concentrators, Nanoparticles, Absorption, Annealing, Doping, Near infrared

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Proceedings Article | 24 August 2010 Paper

Advances in up- and down-converted fluorescence for high efficiency solar cells using rare-earth doped fluorozirconate-based glasses and glass ceramics

Christian Paßlick, Bastian Henke, István Császár, Bernd Ahrens, Paul-T. Miclea, Jacqueline Johnson, Stefan Schweizer

Proceedings Volume 7772, 77720A (2010) https://doi.org/10.1117/12.860196

KEYWORDS: Glasses, Solar cells, Luminescence, Annealing, Ceramics, Absorption, Nanocrystals, Silicon solar cells, Ions, Ultraviolet radiation

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Proceedings Article | 18 May 2010 Paper

Progress on up- and down-converted fluorescence in rare-doped fluorozirconate-based glass ceramics for high efficiency solar cells

Stefan Schweizer, Bastian Henke, Bernd Ahrens, Christian Paßlick, Paul Miclea, Johannes Wenzel, Eduard Reisacher, Wulf Pfeiffer, Jacqueline Johnson

Proceedings Volume 7725, 77250X (2010) https://doi.org/10.1117/12.853943

KEYWORDS: Glasses, Ceramics, Luminescence, Solar cells, Ultraviolet radiation, Nanocrystals, Absorption, Ions, Annealing, Doping

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Proceedings Article | 18 May 2010 Paper

Photon down-conversion in Terbium(III)-doped thin dielectric films and fluorozirconate glasses for thin film solar cells

K. Baumgartner, B. Ahrens, O. Angelov, M. Sendova-Vassileva, D. Dimova-Malinovska, B. Holländer, S. Schweizer, R. Carius

Proceedings Volume 7725, 77250T (2010) https://doi.org/10.1117/12.853939

KEYWORDS: Terbium, Thin films, Ions, Glasses, Absorption, Annealing, Silica, Thin film solar cells, Luminescence, Silicon

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Proceedings Article | 20 August 2009 Paper

Upconverted fluorescence in Er-doped ZBLAN glasses for high efficiency solar cells

Bastian Henke, Bernd Ahrens, Jacqueline Johnson, Paul Miclea, Stefan Schweizer

Proceedings Volume 7411, 74110E (2009) https://doi.org/10.1117/12.825275

KEYWORDS: Glasses, External quantum efficiency, Luminescence, Solar cells, Upconversion, Photons, Near infrared, Silicon solar cells, Doping, Solar energy

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Proceedings Article | 5 May 2008 Paper

Enhanced up-converted fluorescence in fluorozirconate based glass ceramics for high efficiency solar cells

Bernd Ahrens, Bastian Henke, Paul Miclea, Jacqueline Johnson, Stefan Schweizer

Proceedings Volume 7002, 700206 (2008) https://doi.org/10.1117/12.779271

KEYWORDS: Luminescence, Glasses, Ceramics, Ions, Neodymium, Photons, Infrared radiation, Solar cells, Annealing, Solar energy

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Showing 5 of 8 publications

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