III-V Solar Cells, Modules and Concentrator Photovoltaics

In the business area "III‑V Solar Cells, Modules and Concentrating Photovoltaics", we are working on the most efficient PV technology and looking for economically attractive solutions. The III‑V solar cells we develop are known for their high performance and long-term stability and we continue to set new benchmarks with international record values.

One focus of our research is to reduce the manufacturing costs through new production processes. In addition to requirements from space and concentrator photovoltaics (CPV), we also address solutions for mass markets, such as vehicle-integrated photovoltaics (VIPV) for electromobility.

With the help of our excellent laboratory infrastructure, we work both on the development and optimization of next-generation solar cells and on adapting these devices to the specific requirements of our customers. We cover a wide range of topics, such as ultra-thin flexible cells and modules, engineered substrates with different lattice constants, innovative processes for cost-effective cell production, nanostructured mirrors, and advanced measurement technology. In concentrating photovoltaics, we cover all aspects of solar cells, optics, module technology and systems, up to, for example, the production of solar hydrogen. Finally, we use our expertise in the development of photonic and power electronic components for other applications, such as optical power transmission or thermophotovoltaics (TPV).

Fields of Work

In the topic "III-V Solar Cells, Modules and Concentrator Photovoltaics" we focus on the following fields of work:

III-V Material Development and Epitaxy

Process Technology and Device Fabrication

Modeling and Design of III-V Solar Cells and Devices

Characterization of III-V Solar Cells and Modules

Interconnection Technology and Reliability Testing for III-V Solar Cells and Modules

Concentrator Photovoltaic Modules

Development of III-V Silicon Tandem Solar Cells

Highlights of our R&D Activities

R&D Infrastructure

This infrastructure is available to us at Fraunhofer ISE for our research and development activities:

 

Center for High Efficiency Solar Cells

We test and optimize advanced PV technologies in more than 1000 m² of state-of-the-art clean room and laboratory space. Innovative processes and technologies are researched in this center for future use in industry, including wet-chemical processes, photo and laser lithography, nanoimprint laboratory, vapor deposition of metals and dielectrics.

 

CalLab PV Cells

The accredited calibration laboratory CalLab PV Cells at Fraunhofer ISE offers high-precision, reproducible calibrations and measurements of all types of solar cells according to international standards, for example, spectral responsivity/quantum efficiency, reflectance, current-voltage measurements, especially under variable spectra and intensities, various broadband and laser light sources as well as filters are available.

 

Concentrator Technology Evaluation Center Con-TEC

Con-TEC has a wide range of assembly and connection technologies available for the development and assembly of customized modules and packages. We test components and production processes with a focus on reliability and material analysis. We develop prototypes and produce small series to evaluate new components, designs and processes.

 

Lab Structuring and Photonics

We develop solutions based on micro- and nanostructures for solar cells and other photovoltaic components such as photovoltaic cells for transmitting power using laser light, but also for related components such as LEDs.

Selected Reserach-Projects

 

50 Prozent

Monolithic III-V Multi-Junction Solar Cells with More than 50 % Efficiency under Concentrated Irradiation

 

micro-CPV

Development of a Highly Concentrating CPV Module Based on Modern Micro-Production Technology

 

H2Demo

Development of Demonstrators for Direct Solar Water Splitting

 

HIPERION

Hybrid Photovoltaics for Efficiency Record using Integrated Optical Technology

 

QuintuMod

Development of a Low-cost and High Efficient Solar Module Using a Solar Cell with 5-pn Junctions

 

HyCon

Solar Hydrogen Generation Using a HyCon System

 

PoTaSi

Demonstration of the Potential of Monolithic Tandem Solar Cells Made of III-V Semiconductors and Silicon

Current Publications on the Topic "III-V Solar Cells, Modules and Concentrator Photovoltaics"

Jahr
Year
Titel/Autor:in
Title/Author
Publikationstyp
Publication Type
2026 Back surface reflectors for III-V tandem solar cells: A polymer-based approach and thermal stress analysis
Selis, Alessandra; Schygulla, Patrick; Alt, Nicolas; Norberg, Jenny; Oliva, Eduard; Lackner, David; Helmers, Henning; Höhn, Oliver
Zeitschriftenaufsatz
Journal Article
2026 Actions for sustainably scalable multi-terawatt photovoltaics
Wagner, Lukas; Peters, Ian Marius; Anctil, Annick; Davies, Matthew; de Groot, Jiska; Wang, Li; Helmers, Henning; Pietzcker, Robert; Goldschmidt, Jan Christoph
Zeitschriftenaufsatz
Journal Article
2026 Historical and future learning for the new era of multi-terawatt photovoltaics
Alberi, Kirstin; Marius Peters, Ian Marius; Verlinden, Pierre Jacques; Philipps, Simon; Koike, Akio; Barnes, Teresa M.; Berry, Joel J.; Bertoni, Mariana I.; Breyer, Christian; Burnham, Laurie M.; Case, Chris; Chen, Yifeng; De Wolf, Stefaan; Egan, Renate J.; Froitzheim, Armin; Gatz, Sebastian; Gloeckler, Markus; Goldschmidt, Jan Christoph; Gordon, Ivan; Haegel, Nancy M.; Hermle, Martin; Honsberg, Christiana Honsberg; Hsi, Edward; Huber, Bill; Ishizuka, Shogo; Jäger-Waldau, Arnulf; Jean, Joel; Jiang, Yajie; Jurca, Shannon; Kaizuka, Izumi; King, Richard R.; Komoto, Keiichi; Kondo, Michio; Kulkarni, Milind; Kurtz, Sarah R.; Macdonald, Daniel H.; Merfeld, Danielle; Kobayashi, Naoya; Niki, Shigeru; Obst, Andreas; Oozeki, Takashi; Paetzold, Ulrich Wilhelm; Pickering, Jonathan; Preu, Ralf; Reese, Samantha Bench; Reichel, Christian; Reindl, Thomas Guenter; Repins, Ingrid L.; Ronoh, Geoffrey; Rose, Doug; Sakurai, Keiichiro; Schlatmann, Rutger; Slaoui, Adelilah; Sinton, Ronald A.; Soni, Kamal K.; Stanbery, Billy J.; Sutija, Davor; Topic, Marko; Ueda, Yuzuru; Vasi, Juzer M.; Wambach, Karsten; Warren, Emily L.; Weber, Eicke R.; Yamaguchi, Masafum; Bett, Andreas W.
Review
2026 Photovoltaic Water Electrolysis Reaching 31.3% Solar-to-H2 Conversion Efficiency Under Outdoor Operating Conditions
Martinez Sanchez, Juan Francisco; Ohlmann, Jens; Smolinka, Tom; Dimroth, Frank
Zeitschriftenaufsatz
Journal Article
2026 Development of a Low-Loss Separation Process for Micro-CPV Cells
Warda, Lonnika; Brand, Andreas; Münzer, Anna; Nekarda, Jan; Dimroth, Frank; Höhn, Oliver
Poster
2025 In-Situ Response During Pulsed GaP Nucleation on Silicon
Grutke, Jonas; Ohlmann, Jens
Vortrag
Presentation
2025 Optimization of GaInP Absorber Design for Indoor Photovoltaic Conversion Efficiency above 40%
Klitzke, Malte; Schygulla, Patrick; Klein, Christoph; Kleinschmidt, Peter; Hannappel, Thomas; Lackner, David
Zeitschriftenaufsatz
Journal Article
2025 In-Situ Response During Pulsed GaP Nucleation on Silicon
Grutke, Jonas; Ohlmann, Jens
Vortrag
Presentation
2025 Machine learning enhanced design and knowledge discovery for multi-junction photonic power converters
Hunter, Robert F.H.; Forcade, Gavin P.; Grinberg, Yuri; Wilson, Debra Paige; Beattie, Meghan N.; Valdivia, Christopher E.; Lafontaine, Mathieu de; St-Arnaud, Louis Philippe; Helmers, Henning; Höhn, Oliver; Lackner, David; Pellegrino, Carmine; Krich, Jacob J.; Walker, Alex W.; Hinzer, Karin
Zeitschriftenaufsatz
Journal Article
2025 Effect of Manufacturing Tolerances on Micro-CPV Assemblies: A Quantitative Approach based on Statistical Modeling
Kaiser, Elisa; Wiesenfarth, Maike; Schöttl, Peter; Steiner, Marc; Glunz, Stefan; Helmers, Henning
Zeitschriftenaufsatz
Journal Article
2025 Solar cell efficiency tables (Version 66)
Green, Martin A.; Dunlop, Ewan D.; Yoshita, Masahiro; Kopidakis, Nikos; Bothe, Karsten; Siefer, Gerald; Hao, Xiaojing; Jiang, Jessica Yajie
Zeitschriftenaufsatz
Journal Article
2025 Metalorganic Vapor-Phase Epitaxy Growth of GaAs Rear-Heterojunction Solar Cells at 94 µm/h
Klein, Christoph; Lang, Robin; Ohlmann, Jens; Dimroth, Frank; Lackner, David
Zeitschriftenaufsatz
Journal Article
2025 Subcell-Resolved EQE Method Using Reverse Voltage Biasing for Multijunction Photovoltaics With Overlapping Subcell Absorptance
Beattie, Meghan; Schachtner, Michael; Hinzer, Karin; Siefer, Gerald; Höhn, Oliver; Lackner, David; Helmers, Henning
Zeitschriftenaufsatz
Journal Article
2025 Wafer-bonded two-terminal III-V//Si triple-junction solar cell with power conversion efficiency of 36.1% at AM1.5g
Schygulla, Patrick; Müller, Ralph; Höhn, Oliver; Schachtner, Michael; Chojniak, David; Cordaro, Andrea; Tabernig, Stefan; Bläsi, Benedikt; Polman, Albert; Siefer, Gerald; Lackner, David; Dimroth, Frank
Zeitschriftenaufsatz
Journal Article
2025 Solar cell efficiency tables (Version 65)
Green, Martin A.; Dunlop, Ewan D.; Yoshita, Masahiro; Kopidakis, Nikos; Bothe, Karsten; Siefer, Gerald; Hao, Xiaojing; Jiang, Jessica Yajie
Zeitschriftenaufsatz
Journal Article
2025 InP-on-GaAs Engineered Substrates: A Pathway Toward Low-Cost, High-Efficiency Optoelectronic Device Fabrication
Pellegrino, Carmine; Dimroth, Frank; Ohlmann, Jens; Helmers, Henning; Lackner, David
Zeitschriftenaufsatz
Journal Article
2025 Cutting the cost of InP-based devices
Dimroth, Frank; Pellegrino, Carmine; Ohlmann, Jens; Lackner, David; Schwar, Jörg
Zeitschriftenaufsatz
Journal Article
2025 Quasi-Open Circuit Response Times of Single- and Multi-junction InGaAs Photonic Power Converters
Almora, Osbel; Walker, Alexandre W.; Wilson, D. Paige; Pellegrino, Carmine; Beattie, Meghan; Marsal, Luis F.; Lackner, David; Helmers, Henning; Hinzer, Karin
Zeitschriftenaufsatz
Journal Article
2025 "AIIR-power". Entwicklung von KI-Techniken zur Optimierung optoelektrischer Bauelementdesigns und ihrer epitaktischen Herstellung sowie deren Anwendung für Telekom-Wellenlängen. Teilvorhaben: Entwicklung, Demonstration, Implementierung. Schlussbericht
Helmers, Henning; Amin, Hafiz Muhammad Noman; Alt, Nicolas; Beattie, Meghan; Bösch, Armin; Bloß, Christina; Dilger, Alexander; Dörsam, Tobias; Fehrenbacher, Elvira; Solva Freitas, Rita Marlene da; Höhn, Oliver; Jamil, Sabrina; Koch, Ranka; Laskowski, Till; Lackner, David; Müller, Ralph; Nacke, Richard; Oliva, Eduard; Pellegrino, Carmine; Sahajad, Fadil; Schachtner, Michael; Schauerte, Meike; Scheer, Manuela; Schön, Jonas; Schygulla, Patrick; Siefer, Gerald; Simon, Philipp; Selis, Alessandra; Stättner, Sophie; Tibbits, Thomas; Wekkeli, Alexander; Wiesenfarth, Maike
Bericht
Report
2025 The Future Energy System - System Architecture and Key Technologies
Henning, Hans-Martin
Vortrag
Presentation
2025 50Prozent - Monolithische III-V-Mehrfachsolarzellen mit über 50% Wirkungsgrad unter konzentrierter Einstrahlung
Höhn, Oliver; Lackner, David; Schygulla, Patrick; Klitzke, Malte; Stättner, Sophie; Sahajad, Fadil; Müller, Ralph; Tibbits, Thomas; Kinstler, Alexander; Schweigstill, Tadeo; Koch, Ranka; Silva Freitas, Rita Marlene da; Basler, Markus; Simon, Philipp; Makkoli, Quendresa; Lebowsky, Anna; Martin, Felix; Fehrenbacher, Elvira; Siefer, Gerald; Schachtner, Michael; Wekkeli, Alexander; Wiesenfarth, Maike; Bösch, Armin; Kaiser, Elisa; Dörsam, Tobias; Dilger, Alexander; Ellersiek, Tara; Steiner, Marc; Helmers, Henning; Dimroth, Frank
Bericht
Report
2025 Multifunctional and Low-Cost Bonding Layer for III-V//Si Tandem Solar Cells
Salmon, E.; Buencuerpo, Jeronimo; Schuhmann, Jérémie; Bidaud, Thomas; Ivashtenko, Oleh; Höhn, Oliver; Lackner, David; Dimroth, Frank; Delamarre, Amaury; Cattoni, Andrea; Collin, Stéphane
Konferenzbeitrag
Conference Paper
2025 Overcoming Material Incompatibility via 2D Free-Surface Engineering
Bioud, Ataellah Youcef; Bouchilaoun, Meriem; Schreiber, Waldemar; Amrar, Redouane; Patriarche, Gilles; Ma, Tao; Ohlmann, Jens; Soltani, Ali; Lackner, David; Janz, Stefan
Zeitschriftenaufsatz
Journal Article
2025 Power Rating of a Novel Micro-CPV Module Concept and Operational Influences
Kaiser, Elisa; Wiesenfarth, Maike; Steiner, Marc; Siefer, Gerald; Nitz, Peter; Schöttl, Peter; Glunz, Stefan W.; Helmers, Henning
Zeitschriftenaufsatz
Journal Article
2025 Optics for terawatt-scale photovoltaics: review and perspectives
Jäger, Klaus; Aeberhard, Urs; Alarcon Llado, Esther; Bläsi, Benedikt; Burger, Sven; Ehrler, Bruno; Favre, Wilfried; Fejfar, Antonin; Gageot, Tristan; Gordon, Ivan; Helmers, Henning; Höhn, Oliver; Izabella, Olindo; Jost, Marko; Ledinsky, Martin; Mandal, Jyotirmoy; Manley, Phillip; Munoz, Delfina; Omair, Zunaid; Ortiz Lizcano, Juan Camilo; Paetzold, Ulrich W.; Raman, Aaswath P.; Sai, Hitoshi; Saive, Rebeca; Schmid, Martina; Yablonovitch, Eli; Becker, Christiane
Zeitschriftenaufsatz
Journal Article
2025 Rear-Heterojunction GaInP Laser Power Converter with 59% Monochromatic Efficiency at 590 nm
Klitzke, Malte; Höhn, Oliver; Siefer, Gerald; Helmers, Henning; Dimroth, Frank; Lackner, David
Zeitschriftenaufsatz
Journal Article
2025 Two-Step Nested Optical-Electrical Monte-Carlo Approach to Analyze the Influence of Tolerances on Micro-CPV Module Performance
Kaiser, Elisa; Wiesenfarth, Maike; Schöttl, Peter; Steiner, Marc; Glunz, Stefan; Helmers, Henning
Zeitschriftenaufsatz
Journal Article
2025 Multi-Junction Laser Power Converters Exceeding 50% Efficiency in the Short Wavelength Infrared
Forcade, Gavin; Wilson, Paige; Beattie, Meghan; Pellegrino, Carmine; Helmers, Henning; Hunter, Robert; Höhn, Oliver; Lackner, David; St-Arnaud, Louis-Philippe; Tibbits, Thomas; Poitras, Daniel; Valdivia, Christopher; Grinberg, Yuri; Walker, Alexandre; Krich, Jacob; Hinzer, Karin
Zeitschriftenaufsatz
Journal Article
2024 Measuring the Device-Level EQE of Multi-Junction Photonic Power Converters
Schachtner, Michael; Beattie, Meghan N.; Reichmuth, Kasimir; Wekkeli, Alexander; Siefer, Gerald; Helmers, Henning
Zeitschriftenaufsatz
Journal Article
2024 Progress and Challenges in Tandems
Hermle, Martin
Vortrag
Presentation
2024 Spectrometric Characterization for Triple-Junction Solar Cells
Aulich, Johanna; Chojniak, David; Bett, Alexander J.; Steiner, Marc; Schindler, Florian; Siefer, Gerald; Schubert, Martin; Goldschmidt, Jan Christoph; Glunz, Stefan
Zeitschriftenaufsatz
Journal Article
2024 Experimental and simulative correlations of the influence of solder volume and receptor size on the capillary self-alignment of micro solar cells
Vareilles, Victor; Kaiser, Elisa; Voarino, Philippe; Wiesenfarth, Maike; Cariou, Romain; Dimroth, Frank; Veschetti, Yannick; Amara, Mohamed; Helmers, Henning
Zeitschriftenaufsatz
Journal Article
2024 Technology innovations for a renewable energy system
Henning, Hans-Martin
Vortrag
Presentation
2024 A Precise Method for the Spectral Adjustment of LED and Multi-Light Source Solar Simulators
Chojniak, David; Schachtner, Michael; Reichmuth, Kasimir; Bett, Alexander J.; Rauer, Michael; Hohl-Ebinger, Jochen; Schmid, Alexandra; Siefer, Gerald; Glunz, Stefan
Zeitschriftenaufsatz
Journal Article
2024 GaAs0.75P0.25 Directly Grown on Si Towards Cost-Effective High-Efficiency Multi-Junction Silicon Photovoltaics
Grutke, Jonas; Schweigstill, Tadeo; Bett, Andreas W.; Dimroth, Frank; Höhn, Oliver; Lackner, David; Ohlmann, Jens
Konferenzbeitrag
Conference Paper
2024 Sheet Resistance Optimization in (Al)GaInP Solar Cells for Concentrator Quadruple-Junction Solar Cells
Klitzke, Malte; Schygulla, Patrick; Schön, Jonas; Höhn, Oliver; Siefer, Gerald; Helmers, Henning; Dimroth, Frank; Lackner, David
Zeitschriftenaufsatz
Journal Article
2024 Forced Motion Activated Self-Alignment of Micro-CPV Solar Cells
Kaiser, Elisa; Wiesenfarth, Maike; Vareilles, Victor; Schneider-Ramelow, Martin; Glunz, Stefan; Helmers, Henning
Zeitschriftenaufsatz
Journal Article
2024 Wafer-bonded Four-junction Solar Cell with 47.6% Conversion Efficiency for High Concentrating Photovoltaics
Höhn, Oliver; Schygulla, Patrick; Klitzke, Malte; Lackner, David; Schön, Jonas; Oliva, Eduard; Schachtner, Michael; Siefer, Gerald; Helmers, Henning; Dimroth, Frank
Konferenzbeitrag
Conference Paper
2024 Advancing Solar Energy Conversion Efficiency to 47.6% and Exploring the Spectral Versatility of III-V Photonic Power Converters
Helmers, Henning; Höhn, Oliver; Lackner, David; Schygulla, Patrick; Klitzke, Malte; Schön, Jonas; Pellegrino, Carmine; Oliva, Eduard; Schachtner, Michael; Beutel, Paul; Heckelmann, Stefan; Predan, Felix; Ohlmann, Jens; Siefer, Gerald; Dimroth, Frank
Konferenzbeitrag
Conference Paper
2024 Enabling Silver-Free Metallization of the Rear Side of iTOPCon Cells Through Laser Bonding of Thin Aluminum Foil
John, Oliver; Ourinson, Daniel; Emanuel, Gernot; Brand, Andreas; Nekarda, Jan; Preu, Ralf
Vortrag
Presentation
2024 Advances in solar photovoltaic technologies and the role of photonics
Collin, Stéphane; Höhn, Oliver; Wolff, Christian M.
Zeitschriftenaufsatz
Journal Article
2024 Bewertung des Blendungspotenzials verschiedener BIPV-Deckgläser: Untersuchung der Oberflächenstruktur
Willmann, Janina; Wilson, Helen Rose; Bueno Unzeta, Bruno
Konferenzbeitrag
Conference Paper
2024 Overcoming Optical-Electrical Grid Design Trade-offs for cm²-Sized High Power GaAs Photonic Power Converters by Plating Technology
Helmers, Henning; Oliva, Eduard; Schachtner, Michael; Mikolasch, Gabriele; Ruiz Preciado, Luis; Franke, Alexander; Bartsch, Jonas
Zeitschriftenaufsatz
Journal Article
2024 GaAs//CuInGaSe-Based Multijunction Solar Cells with 30% Efficiency Under Low Concentrated Sunlight
Makita, Kikuo; Kamikawa, Yukiko; Mizuno, Hidenori; Oshima, Ryuji; Shoji, Yasushi; Ishizuka, Shogo; Müller, Ralph; Lackner, David; Dimroth, Frank; Sugaya, Takeyoshi
Zeitschriftenaufsatz
Journal Article
2024 Solar cell efficiency tables (Version 64)
Green, Martin A.; Dunlop, Ewan D.; Yoshita, Masahiro; Kopidakis, Nikos; Bothe, Karsten; Siefer, Gerald; Hinken, David; Rauer, Michael; Hohl-Ebinger, Jochen; Hao, Xiaojing
Zeitschriftenaufsatz
Journal Article
2024 Tunnel Oxide Passivated Contact (TOPCon) Solar Cells
Kafle, Bishal; Richter, Armin
Aufsatz in Buch
Book Article
2024 Review on ultrahigh growth rate GaAs solar cells by metalorganic vapor-phase epitaxy
Lang, Robin; Klein, Christoph; Ohlmann, Jens; Dimroth, Frank; Lackner, David
Review
2024 Secondary Optics Assembly for Micro Concentrating Photovoltaics: A Parallelized and Scalable Approach
Voitel, Marcus; Kaiser, Elisa; Mehrafsun, Salar; Braun, Tanja; Helmers, Henning; Becker, Karl-Friedrich; Wiesenfarth, Maike; Schneider-Ramelow, Martin
Konferenzbeitrag
Conference Paper
2024 A prospective ecological risk assessment of high-efficiency III–V/silicon tandem solar cells
Blanco, Carlos Felipe; Quik, Joris T.K.; Hof, M; Fuortes, Agnese; Behrens, Paul; Cucurachi, Stefano; Peijnenburg, Willie; Dimroth, Frank; Vijver, Martina
Zeitschriftenaufsatz
Journal Article
2024 Characterization of Mechanical Strength of Shingle Joints Using Die Shear Test
Abdel Latif, Najwa; Lamsairhri, Rachid; Rößler, Torsten
Konferenzbeitrag
Conference Paper
2023 Manufacturing of a Novel Micro-Concentrator Prototype and Assessment of its Electrical Performances
Vareilles, Victor; Voarino, Philippe; Veschetti, Yannick; Kaiser, Elisa; Helmers, Henning; Amara, Mohamed
Konferenzbeitrag
Conference Paper
2023 Low-Cost Outdoor Spectral Irradiances Determination and its Application on Concentrator Photovoltaic Module Power Rating and Energy Yield Calculation
Steiner, Marc; Martinez Sanchez, Juan Francisco; Mathur, Paresh; Sarkar, Subrata; Siefer, Gerald
Zeitschriftenaufsatz
Journal Article
2023 High-Efficiency 1064 nm Metamorphic Photonic Power Converters for Spacecraft Wireless Power Transfer
Pellegrino, Carmine; Helmers, Henning; Ohlmann, Jens; Höhn, Oliver; Lackner, David
Konferenzbeitrag
Conference Paper
2023 Photonen zur Energieübertragung
Helmers, Henning
Zeitschriftenaufsatz
Journal Article
2023 Resource-efficient generation of large-area micro and nanostructures
Bläsi, Benedikt; Müller, Martina; Rossmeier, Harald
Zeitschriftenaufsatz
Journal Article
2023 Energy yield modeling of 5J solar cell based CPV modules
Steiner, Marc; Schroth, Philipp; Löckenhoff, Rüdiger F.; Siefer, Gerald; Wiesenfarth, Maike
Konferenzbeitrag
Conference Paper
2023 Solar cell efficiency tables (Version 61)
Green, Martin A.; Dunlop, Ewan D.; Siefer, Gerald; Yoshita, Masahiro; Kopidakis, Nikos; Bothe, Karsten; Hao, Xiaojing
Zeitschriftenaufsatz
Journal Article
2023 AlP based III-V Nucleation on Silicon
Grutke, Jonas; Firoozabadi, Saleh; Bett, Andreas W.; Lackner, David; Volz, Kerstin; Dimroth, Frank; Ohlmann, Jens
Vortrag
Presentation
2023 Photovoltaics: Towards 50 percent efficiency
Höhn, Oliver
Zeitschriftenaufsatz
Journal Article
2023 III-V Photovoltaic Cells for Photonic Power Transmission
Helmers, Henning
Vortrag
Presentation
2023 Translation of Outdoor Tandem PV Module I-V Measurements to a STC Power Rating
Steiner, Marc; Siefer, Gerald
Zeitschriftenaufsatz
Journal Article
2023 Impact of Pad Layouts and Solder Volume on Self-Alignment of Micro Solar Cells
Kaiser, Elisa; Wiesenfarth, Maike; Vareilles, Victor; Helmers, Henning
Konferenzbeitrag
Conference Paper
2023 Photovoltaics at Multi-Terawatt Scale: Waiting is not an Option
Haegel, Nancy M.; Verlinden, Pierre; Victoria, Marta; Altermatt, Pietro; Atwater, Harry; Barnes, Teresa; Breyer, Christian; Case, Chris; Wolf, Stefaan de; Deline, Chris; Dharmrin, Marwan; Dimmler, Bernhard; Gloeckler, Markus; Goldschmidt, Jan Christoph; Hallam, Bret; Haussener, Sophia; Holder, Burkhard; Jaeger, Ulrich; Jaeger-Waldau, Arnulf; Kaizuka, Izumi; Kikusator, Hiroshi; Kroposki, Benjamin; Kurtz, Sarah; Matsubara, Koji; Nowak, Stefan; Ogimoto, Kazuhiko; Peter, Christian; Peters, I. Marius; Philipps, Simon; Powalla, Michael; Rau, Uwe; Reindl, Thomas; Roumpani, Maria; Sakurai, Keiichiro; Schorn, Christian; Schlatmann, Rutger; Schossig, Peter; Schlatmann, Rutger; Sinton, Ron; Slaoui, Abdelilah; Smith, Brittany L.; Schneidewind, Peter; Stanbery, Billy; Topic, Marko; Tumas, William; Vasi, Juzer; Vetter, Matthias; Weber, Eicke; Weeber, Arthur; Weidlich, Anke; Weiss, Dirk; Bett, Andreas W.
Zeitschriftenaufsatz
Journal Article
2023 The effect of passivation to etching duration ratio on bipolar electrochemical etching of porous layer stacks in germanium
Schreiber, Waldemar; Liu, Tingzhu; Janz, Stefan
Zeitschriftenaufsatz
Journal Article
2023 InP- and GaAs-Based Photonic Power Converters Under O-Band Laser Illumination: Performance Analysis and Comparison
Beattie, Meghan; Helmers, Henning; Forcade, Gavin; Valdivia, Christopher; Höhn, Oliver; Hinzer, Karin
Zeitschriftenaufsatz
Journal Article
2023 Impact of Pad Layouts and Solder Volume on Self-Alignment of Micro Solar Cells
Kaiser, Elisa; Wiesenfarth, Maike; Vareilles, Victor; Helmers, Henning
Vortrag
Presentation
2023 III-V Epitaxy on Detachable Porous Germanium 4” Substrates
Schreiber, Waldemar; Ohlmann, Jens; Schygulla, Patrick; Janz, Stefan; Cho, Jinyoun; Dessein, Kristof
Konferenzbeitrag
Conference Paper
2023 PV-Produktion in Europa - Aktueller Status
Bett, Andreas W.; Rentsch, Jochen; Preu, Ralf
Konferenzbeitrag
Conference Paper
2023 PV at Multi-Terawatt Scale: Waiting is not an Option
Philipps, Simon
Vortrag
Presentation
2023 Nano-patterned back-reflector with engineered near-/far-field light scattering for enhanced light trapping in silicon-based multi-junction solar cells
Cordaro, Andrea; Müller, Ralph; Tabernig, Stefan; Tucher, Nico; Schygulla, Patrick; Höhn, Oliver; Bläsi, Benedikt; Polman, Albert
Zeitschriftenaufsatz
Journal Article
2023 Effective radiative recombination coefficient of p-AlGaAs for varying aluminium concentrations
Schygulla, Patrick; Lang, Robin; Lackner, David
Zeitschriftenaufsatz
Journal Article
2023 C-band Photonic Power Converters based on InGaAs Absorber in Substrate and Thin-film & Single- and Multi-Junction Configuration
Helmers, Henning; Schauerte, Meike; Höhn, Oliver; Beattie, Meghan; Wilson, Paige; Hinzer, Karin; Lackner, David
Vortrag
Presentation
2023 LED Solar Simulators - A Spectral Adjustment Procedure for Tandem Solar Cells
Chojniak, David; Bett, Alexander J.; Hohl-Ebinger, Jochen; Reichmuth, Kasimir; Schachtner, Michael; Siefer, Gerald
Konferenzbeitrag
Conference Paper
2023 Effects of manufacturing tolerances on micro-CPV module performance
Kaiser, Elisa; Schöttl, Peter; Wiesenfarth, Maike; Nitz, Peter; Helmers, Henning
Konferenzbeitrag
Conference Paper
2023 Proton radiation hardness of GaInAsP alloys for space solar cell applications
Pellegrino, Carmine; Schön, Jonas; Lang, Robin; Dimroth, Frank; Zimmermann, Claus G.; Lackner, David
Zeitschriftenaufsatz
Journal Article
2023 Mask and plate: a scalable front metallization with low-cost potential for III-V-based tandem solar cells enabling 31.6 % conversion efficiency
Schube, Jörg; Höhn, Oliver; Schygulla, Patrick; Müller, Ralph; Jahn, Mike; Mikolasch, Gabriele; Steiner, Marc; Predan, Felix; Bartsch, Jonas; Dimroth, Frank; Clement, Florian; Keding, Roman
Zeitschriftenaufsatz
Journal Article
2023 III-V Material Growth on Electrochemically Porosified Ge Substrates
Winter da Costa, Edgard; Schreiber, Waldemar; Schygulla, Patrick; Lustoza de Souza, Patricia; Janz, Stefan; Lackner, David; Ohlmann, Jens
Zeitschriftenaufsatz
Journal Article
2023 Wafer-Bonded Two-Terminal III-V//Si Triple-Junction Solar Cell with Power Conversion Efficiency of 36,1% at AM1.5G
Schygulla, Patrick; Müller, Ralph; Höhn, Oliver; Schachtner, Michael; Chojniak, David; Cordaro, Andrea; Tabernig, Stefan; Bläsi, Benedikt; Polman, Albert; Siefer, Gerald; Lackner, David; Dimroth, Frank
Konferenzbeitrag
Conference Paper
2023 Photovoltaics on Earth vs. Space
Lackner, David; Philipps, Simon; Bett, Andreas W.
Vortrag
Presentation
2023 Solar cell efficiency tables (Version 62)
Green, Martin A.; Dunlop, Ewan D.; Yoshita, Masahiro; Kopidakis, Nikos; Bothe, Karsten; Siefer, Gerald; Hao, Xiaojing
Zeitschriftenaufsatz
Journal Article
2022 Revealing fundamentals of charge extraction in photovoltaic devices through potentiostatic photoluminescence imaging
Wagner, Lukas; Schygulla, Patrick; Herterich, Jan Philipp; Elshamy, Mohamed; Bogachuk, Dmitry; Zouhair, Salma; Mastroianni, Simone; Würfel, Uli; Liu, Yuhang; Zakeeruddin, Shaik M.; Grätzel, Michael; Hinsch, Andreas; Glunz, Stefan
Zeitschriftenaufsatz
Journal Article
2022 Integration of Si Heterojunction Solar Cells with III-V Solar Cells by the Pd Nanoparticle Array-Mediated "Smart Stack" Approach
Mizuno, Hidenori; Makita, Kikuo; Sai, Hitoshi; Mochizuki, Toshimitsu; Matsui, Takuya; Takato, Hidetaka; Müller, Ralph; Lackner, David; Dimroth, Frank; Sugaya, Takeyoshi
Zeitschriftenaufsatz
Journal Article
2022 Realization of Ultrathin GaAs Photonic Power Converters with Rear-Side Metal Grating on Full 4" Wafers
Höhn, Oliver; Schauerte, Meike; Schygulla, Patrick; Hauser, Hubert; Lackner, David; Bläsi, Benedikt; Helmers, Henning
Konferenzbeitrag
Conference Paper
2022 Impact of lateral effects on large scale perovskite/silicon tandem solar cell performance
Reichmuth, Kasimir
Vortrag
Presentation
2022 Ultrafast GaAs MOVPE Growth for Power Electronics
Lackner, David; Urban, Tobias; Lang, Robin; Pellegrino, Carmine; Dudek, Volker
Vortrag
Presentation
2022 Impact of Lateral Effects on EQE Measurements of Large Scale Tandem Solar Cells
Reichmuth, Kasimir; Fell, Andreas; Siefer, Gerald; Schachtner, Michael; Chojniak, David; Fischer, Oliver; Mühleis, Matthias; Rauer, Michael; Hohl-Ebinger, Jochen; Schubert, Martin C.
Konferenzbeitrag
Conference Paper
2022 Photonic Power Converters for Telecom Optical Wavelength Bands
Helmers, Henning
Vortrag
Presentation
2022 The annual-hydrogen-yield-climatic-response ratio: evaluating the real-life performance of integrated solar water splitting devices
Köhlbach, Moritz; Höhn, Oliver; Rehfeld, Kira; Finkbeiner, Manuel; Barry, James; May, Matthias M.
Zeitschriftenaufsatz
Journal Article
2022 Light trapping gratings for solar cells: An analytical period optimization approach
Bläsi, Benedikt; Hanser, Mario; Jäger, Klaus; Höhn, Oliver
Zeitschriftenaufsatz
Journal Article
2022 Solar cell efficiency tables (Version 60)
Green, Martin A.; Dunlop, Ewan; Hohl-Ebinger, Jochen; Yoshita, Masahiro; Kopidakis, Nikos; Bothe, Karsten; Hinken, David; Rauer, Michael; Hao, Xiaojing
Zeitschriftenaufsatz
Journal Article
2022 Light Trapping Gratings for Solar Cells: An Analytical Approach to Find the Best Periods
Bläsi, Benedikt; Hanser, Mario; Jäger, Klaus; Höhn, Oliver
Vortrag
Presentation
2022 Ultra-lightweight and flexible inverted metamorphic four junction solar cells for space applications
Klitzke, Malte; Schön, Jonas; Leest, Rosalinda H. van; Bissels, Gunther M.M.W.; Vlieg, Elias; Schachtner, Michael; Dimroth, Frank; Lackner, David
Zeitschriftenaufsatz
Journal Article
2022 GaAs//CuIn1-yGaySe2 Three-Junction Solar Cells with 28.06% Efficiency Fabricated Using a Bonding Technique Involving Pd Nanoparticles and an Adhesive
Makita, Kikuo; Kamikawa, Yukiko; Mizuno, Hidenori; Oshima, Ryuji; Shoji, Yasushi; Ishizuka, Shogo; Müller, Ralf; Lackner, David; Dimroth, Frank; Sugaya, Takeyoshi; Beutel, Paul; Benick, Jan; Hermle, Martin
Zeitschriftenaufsatz
Journal Article
2022 High-efficiency III-V Photovoltaic Cells for Photonic Power Conversion
Helmers, Henning
Vortrag
Presentation
2022 Increasing Transferability between Design and Epitaxial Growth of Multi-Junction Solar Cells
Schygulla, Patrick; Klitzke, Malte; Höhn, Oliver; Predan, Felix; Lackner, David; Schön, Jonas; Tibbits, Thomas; Helmers, Henning; Dimroth, Frank
Konferenzbeitrag
Conference Paper
2022 Wie kann der Ausbau von Photovoltaik und Windenergie beschleunigt werden?
Bett, Andreas W.; Erlach, Berit; Gölz, Sebastian; Gutnik, Magdalena; Müller, Florian Y.; Stryi-Hipp, Gerhard; Rens, Simona
Bericht
Report
2022 Raytrace3D by Fraunhofer ISE - Accurate and Efficient Ray Tracing for Concentrator Optics
Schöttl, Peter; Bern, Gregor; Nitz, Peter; Torres, Francisco; Graf, Noa Lina
Bericht
Report
2022 Seven Years of Power Rating following IEC 62670-3
Steiner, Marc; Siefer, Gerald; Martinez Sanchez, Juan Francisco; Dimroth, Frank
Konferenzbeitrag
Conference Paper
2022 Two-terminal III-V//Si triple-junction solar cell with power conversion efficiency of 35.9 % at AM1.5g
Schygulla, Patrick; Müller, Ralph; Lackner, David; Höhn, Oliver; Hauser, Hubert; Bläsi, Benedikt; Predan, Felix; Benick, Jan; Hermle, Martin; Glunz, Stefan W.; Dimroth, Frank
Zeitschriftenaufsatz
Journal Article
2022 PV Research in 2022: State of the Art and New Directions
Glunz, Stefan
Vortrag
Presentation
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