Dr. David Lackner Profile

Dr. David Lackner

at Fraunhofer-ISE

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Author

Publications (8)

Proceedings Article | 19 June 2024 Presentation

Effect of luminescence coupling on EQE measurements of high efficiency multi-junction solar cells

Oliver Höhn, Patrick Schygulla, Ralph Müller, Michael Schachtner, David Chojniak, Gerald Siefer, David Lackner, Frank Dimroth

Proceedings Volume PC13014, PC130140C (2024) https://doi.org/10.1117/12.3022002

KEYWORDS: Multijunction solar cells, External quantum efficiency, Luminescence, Solar cells, Semiconductors, Light sources and illumination

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Proceedings Article | 9 March 2024 Presentation

EQE measurement technique for multi-junction photovoltaics with overlapping subcell absorptance

Meghan Beattie, Michael Schachtner, Karin Hinzer, David Lackner, Oliver Höhn, Gerald Siefer, Henning Helmers

Proceedings Volume PC12881, PC1288107 (2024) https://doi.org/10.1117/12.3001662

KEYWORDS: External quantum efficiency, Photovoltaics, Quantum limits, Photocurrent, Quantum light, Quantum probes, Modulation, Gallium arsenide

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Proceedings Article | 9 March 2024 Presentation

Quantifying the luminescent coupling process in C-band multi-junction photonic power converters

Paige Wilson, Gavin Forcade, Robert F. Hunter, Meghan Beattie, Alexandre Walker, Yuri Grinberg, Henning Helmers, Oliver Hohn, David Lackner, Jacob Krich, Karin Hinzer

Proceedings Volume PC12881, PC128810J (2024) https://doi.org/10.1117/12.3000797

KEYWORDS: Photons, TCAD, Solar cells, Reflection, Optical transmission, Matrices, Indium gallium arsenide, Free space optics, Design and modelling, Absorption

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Proceedings Article | 9 March 2024 Presentation

Using machine learning to optimize multi-junction photonic power converters

Robert F. H. Hunter, Gavin P. Forcade, Yuri Grinberg, Meghan Beattie, D. Paige Wilson, Christopher Valdivia, Mathieu de Lafontaine, Louis-Philippe St-Arnaud, Henning Helmers, Oliver Höhn, David Lackner, Carmine Pellegrino, Jacob Krich, Alexandre Walker, Karin Hinzer

Proceedings Volume PC12881, PC1288109 (2024) https://doi.org/10.1117/12.3002658

KEYWORDS: Machine learning, Design and modelling, Pattern recognition, Optoelectronic devices, Telecommunications, Standards development, Receivers, Principal component analysis, Photovoltaics, Performance modeling

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Proceedings Article | 8 March 2024 Presentation + Paper

Advancing solar energy conversion efficiency to 47.6% and exploring the spectral versatility of III-V photonic power converters

Henning Helmers, Oliver Höhn, David Lackner, Patrick Schygulla, Malte Klitzke, Jonas Schön, Carmine Pellegrino, Eduard Oliva, Michael Schachtner, Paul Beutel, Stefan Heckelmann, Felix Predan, Jens Ohlmann, Gerald Siefer, Frank Dimroth

Proceedings Volume 12881, 1288103 (2024) https://doi.org/10.1117/12.3000352

KEYWORDS: Solar cells, Gallium arsenide, External quantum efficiency, Solar concentrators, Solar energy, Energy efficiency, Photovoltaics, Compound semiconductors, Group III-V semiconductors

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Proceedings Article | 5 March 2021 Presentation

A path toward 25%-efficient ultrathin GaAs solar cells

Berengere Frouin, Andrea Cattoni, Hung-Ling Chen, Oliver Höhn, David Lackner, Gerald Siefer, Marco Faustini, Frank Dimroth, Stéphane Collin

Proceedings Volume 11681, 1168105 (2021) https://doi.org/10.1117/12.2579341

KEYWORDS: Solar cells, Gallium arsenide, Absorption, Thin films, Optical design, Nanostructuring, Nanolithography, Nanoimprint lithography, Mirrors

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Proceedings Article | 1 April 2020 Presentation

Direct wafer bonding for the realization of transparent and electrically conductive heterojunctions in III-V solar cells with highest efficiencies (Conference Presentation)

Felix Predan, Ralph Mueller, Oliver Hoehn, David Lackner, Frank Dimroth

Proceedings Volume 11366, 1136608 (2020) https://doi.org/10.1117/12.2557979

KEYWORDS: Solar cells, Heterojunctions, Sun, Surface finishing, Semiconducting wafers, Silicon, Silicon carbide, Germanium, Compound semiconductors, Particle contamination

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Proceedings Article | 5 June 2018 Paper

Photonic structures for III-V//Si multijunction solar cells with efficiency >33%

Benedikt Bläsi, Oliver Höhn, Hubert Hauser, Nico Tucher, Romain Cariou, Jan Benick, Frank Feldmann, Paul Beutel, David Lackner, Gerald Siefer, Stefan Glunz, Andreas Bett, Frank Dimroth, Martin Hermle

Proceedings Volume 10688, 1068803 (2018) https://doi.org/10.1117/12.2307831

KEYWORDS: Silicon, Solar cells, External quantum efficiency, Diffraction gratings, Multijunction solar cells, Gallium arsenide, Silicon solar cells, Wafer bonding, Nanoimprint lithography, Optical simulations, Group III-V semiconductors

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Showing 5 of 8 publications

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