Dr. Henning Helmers Profile

Dr. Henning Helmers

at Fraunhofer ISE

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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

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

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 | 10 March 2023 Presentation

Strategies for high-performance O-band photonic power converters (Conference Presentation)

Karin Hinzer, Meghan Beattie, Neda Nouri, Henning Helmers, Gavin Forcade, Christopher Valdivia, Oliver Höhn, Jacob Krich

Proceedings Volume PC12416, PC1241609 (2023) https://doi.org/10.1117/12.2653280

KEYWORDS: Reflectors, Telecommunications, Particle swarm optimization, Indium gallium arsenide, Gallium arsenide, Finite-difference time-domain method, Circuit switching

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SPIE Journal Paper | 21 September 2015

Impact of photon recycling and luminescence coupling on III–V single and dual junction photovoltaic devices

Alexandre Walker, Oliver Höhn, Daniel Micha, Lukas Wagner, Henning Helmers, Andreas Bett, Frank Dimroth

JPE, Vol. 5, Issue 01, 053087, (September 2015) https://doi.org/10.1117/12.10.1117/1.JPE.5.053087

KEYWORDS: Gallium arsenide, Luminescence, Solar cells, Mirrors, Electrons, Reflectivity, Instrument modeling, Silver, Absorption, Photovoltaics

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Proceedings Article | 16 April 2015 Paper

Impact of photon recycling and luminescence coupling in III-V photovoltaic devices

A. Walker, O. Höhn, D. Micha, L. Wagner, H. Helmers, A. Bett, F. Dimroth

Proceedings Volume 9358, 93580A (2015) https://doi.org/10.1117/12.2084508

KEYWORDS: Gallium arsenide, Solar cells, Mirrors, Luminescence, Electrons, Reflectivity, Instrument modeling, Sun, Absorption, Silver

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Showing 5 of 7 publications

Conference Committee Involvement (2)

Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XIV

28 January 2025 | San Francisco, California, United States

Optical Power Delivery

28 January 2025 | San Francisco, California, United States

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