Concentrator Assemblies

R&D Services

Our R&D services comprise:

Integrating and Connecting Different Cell Concepts

Customized Assembly Designs

  • Substrate design (e.g. conductive path, substrate materials, submount, thermal management)
  • Electrical contacting (bonding, welding and soldering processes)

Reliability and Long-Term Stability Testing

Concentrator photovoltaics employs cheap optics to focus sunlight onto small solar cell surfaces, with different systems distinguished by their solar concentration factor. Our work primarily focuses on low and medium concentration (>1 - 50x) and high concentration (300 - 1000x) systems.

The solar cell assembly, comprising a substrate, solar cell and electrical contacts, is a key component in concentrator photovoltaic (CPV), power-by-light or thermophotovoltaic (TPV) systems. Different system designs utilize different solar cell assembly structures, and we produce such assemblies with active and passive cooling systems in various sizes.

High concentration systems employ III-V multi-junction solar cells, and the development of such systems at Fraunhofer ISE is based at the Concentrator Technology Evaluation Center (Con-TEC).

Modified silicon or thin-film solar cells are used in low concentration modules. We develop these in our PV Module Technology Evaluation Center (Module-TEC) and at Con-TEC, thus combining expertise in silicon flat-plate module technology and high concentration photovoltaics.

Research at Con-TEC and the Module-TEC primarily focuses on optimizing design, manufacturing processes and CPV module reliability. Our expertise in the field of thermal, optical and electrical simulation is shared with our clients, and we optimize and develop both manufacturing processes and innovative systems.

A variety of experimental methods are available for characterizing CPV components.

Selcted Research Projects

 

micro-CPV

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

 

CPV-T System

CPV-T system combined with desalination systems

 

 

HeKMod4

Highly efficient concentrator module with GaSb-based four-junction solar cell

 

CPVMod

CPV Module in Modular Design; Subproject: Module Design and Module Performance

 

Current Publications - Concentrator Assemblies:

Jahr
Year
Titel/Autor:in
Title/Author
Publikationstyp
Publication Type
2021 Technical Boundaries of Micro-CPV Module Components: How Small is Enough
Wiesenfarth, M.; Martínez, J.F.; Steiner, M.; Iankov, D.; Nitz, P.; Dimroth, F.; Helmers, H.
Vortrag
Presentation
2021 Technical Boundaries of Micro-CPV Module Components: How Small is Enough?
Wiesenfarth, M.; Iankov, D.; Martínez, J.F.; Nitz, P.; Steiner, M.; Dimroth, F.; Helmers, H.
Vortrag
Presentation
2020 Development and Outdoor Characterization of a Hybrid Bifacial HCPV Module
Martinez, J.; Steiner, M.; Wiesenfarth, M.; Fellmeth, T.; Dörsam, T.; Wiese, M.; Glunz, S.W.; Dimroth, F.
Zeitschriftenaufsatz
Journal Article
2019 FLATCON® CPV Module Technology: A New Design based on the Evaluation of 10 Years of Outdoor Measurement Data
Wiesenfarth, M.; Steiner, M.; Dörsam, T.; Siefer, G.; Dimroth, F.; Nitz, P.; Bett, A.W.
Konferenzbeitrag
Conference Paper
2019 Outdoor Experimental Characterization of Novel High-Efficiency High-Concentrator Photovoltaic (HCPV) modules Using Achromatic Doublet on Glass (ADG) Fresnel Lenses as Primary Optics
Vallerotto, G.; Wiesenfarth, M.; Victoria, M.; Steiner, M.; Anton, I.; Jost, N.; Askins, S.; Sala, G.
Konferenzbeitrag
Conference Paper
2019 Pushing Energy Yield with Concentrating Photovoltaics
Steiner, Marc; Wiesenfarth, Maike; Martínez Sánchez, Juan Francisco; Siefer, Gerald; Dimroth, Frank
Konferenzbeitrag
Conference Paper
2019 Terawatt-Scale Photovoltaics: Transform Global Energy
Bett, A.W.; Haegel, N.M.; Atwater, H.; Barnes, T.; Breyer, C.; Burrell, A.; Chiang, Y.-M.; Wolf, S. de; Dimmler, B.; Feldmann, D.; Glunz, S.; Goldschmidt, J.C.; Hochschild, D.; Inzunza, R.; Kaizuka, I.; Kroposki, B.; Kurtz, S.; Margolis, R.; Leu, S.; Matsubara, K.; Metz, A.; Metzger, W.K.
Zeitschriftenaufsatz
Journal Article
2018 Operation & maintenance - the key for reliable performance in a CPV power plant
Wüllner, Johannes; Steiner, Marc; Wiesenfarth, Maike; Bett, Andreas
Konferenzbeitrag
Conference Paper
2018 Trends in Solar Electricity
Bett, A.W.
Vortrag
Presentation
2018 Analysis of the performance of an on-axis mirror module design compared to a FLATCON module
Wiesenfarth, Maike; Gamisch, Sebastian; Jakob, Peter; Steiner, Marc; Bett, Andreas
Konferenzbeitrag
Conference Paper
2018 4-terminal CPV module capable of converting global normal irradiance into electricity
Martínez, Juan F.; Steiner, Marc; Wiesenfarth, Maike; Dimroth, Frank
Konferenzbeitrag
Conference Paper
2018 Component cell-based restriction of spectral conditions and the impact on CPV module power rating
Steiner, Marc; Muller, Matt; Siefer, Gerald; Bett, Andreas W.
Zeitschriftenaufsatz
Journal Article
2018 Challenges in the Design of Concentrator Photovoltaic (CPV) Modules to Achieve Highest Efficiencies
Wiesenfarth, M.; Anton, I.; Bett, A.W.
Zeitschriftenaufsatz
Journal Article
2017 Performance and failure analysis of concentrator solar cells after intensive stressing with thermal, electrical, and combined load
Eltermann, F.; Ziegler, L.; Wiesenfarth, M.; Wilde, J.; Bett, A.W.
Konferenzbeitrag
Conference Paper
2017 An end of service life assessment of PMMA lenses from veteran concentrator photovoltaic systems
Miller, D.C.; Khonkar, H.I.; Herrero, R.; Anton, I.; Johnson, D.K.; Hornung, T.; Schmid-Schirling, T.; Vinzant, T.B.; Deutch, S.; To, B.; Sala, G.; Kurtz, S.R.
Zeitschriftenaufsatz
Journal Article
2017 Progress in R&D on CPV cells and modules for highest efficiencies within the EU-funded project CPVMatch
Philipps, S.; Baudrit, M.; Grange, F.; Hillerich, K.; Parmesani, R.; Román, E.
Vortrag
Presentation
2017 Research on multi-junction solar cells at Fraunhofer ISE
Bett, A.W.; Beutel, P.; Cariou, R.; Feifel, M.; Heckelmann, S.; Hoehn, O.; Klinger, V.; Lackner, D.; Niemeyer, M.; Ohlmann, J.; Oliva, E.; Predan, F.; Siefer, G.; Dimroth, F.
Vortrag
Presentation
2017 The role of draft facets in temperature effects in silicone-on-glass Fresnel lens applications
Jakob, P.; Nitz, P.
Konferenzbeitrag
Conference Paper
2016 CPV-T Mirror Dish System Combined with Water Desalination Systems
Wiesenfarth, M.; Went, J.; Bösch, A.; Dilger, A.; Kec, T.; Kroll, A.; Koschikowsi, J.; Bett, A.W.
Konferenzbeitrag
Conference Paper
2016 Improved in situ performance testing of line-concentrating solar collectors: Comprehensive uncertainty analysis for the selection of measurement instrumentation
Zirkel-Hofer, A.; Perry, S.; Fahr, S.; Kramer, K.; Heimsath, A.; Scholl, S.; Platzer, W.
Zeitschriftenaufsatz
Journal Article
2016 High Efficiency GaInP/GaAs Tandem Wafer Bonded Solar Cell on Silicon
Cariou, R.; Benick, J.; Dimroth, F.
Vortrag
Presentation
2016 Recent Development in Direct Generation of Hydrogen Using Multi-Junction Solar Cells
Ohlmann, J.; Martínez, Juan F.; Lackner, D.; Förster, P.; Steiner, M.; Fallisch, A.; Dimroth, F.
Konferenzbeitrag
Conference Paper
Diese Liste ist ein Auszug aus der Publikationsplattform Fraunhofer-Publica

This list has been generated from the publication platform Fraunhofer-Publica