Andreas A. Brand

Head of Team Laser Process Development & Metrology, Division PV Production Technology and Quality Assurance

Research focus

  • Development of laser material processes of semiconductors, dielectrics and metals
  • Optical Metrology
  • Optimization of crystalline silicon solar cell
  • Ultrafast laser regeneration of boron oxygen defects
  • High throughput industrial laser processes for solar cell manufacturing
  • Data analysis and modelling 

Short biography

since 2017 Head of Team Laser Process Development & Metrology, Fraunhofer ISE
since 2011 PhD Student "laser structuring processes for crystalline silicon solar cells", Fraunhofer ISE
2008-2011 Tribology Research, Fraunhofer Institute for Mechanics of Materials IWM
2004/2005 Honours in Physics, UWA Perth
2002-2008 
Research Assistant, Fraunhofer Institute for Laser Technology ILT

Awards & outstanding achievements

2002-2008 Scholarship Dr. Berg & Zangerle
2001 Awards from the German Secretary of Economy & VDI for innovative work in the field of Hydrogen Fuel Cells

Publications

Jahr
Year
Titel/Autor:in
Title/Author
Publikationstyp
Publication Type
2023 Study of GHz-Burst Femtosecond Laser Micro-Punching of 4H-SiC Wafers
Mir, Hanan; Meyer, Fabian; Brand, Andreas; Dulitz, Katrin; Nekarda, Jan
Aufsatz in Buch
Book Article
2022 Progress of plated metallization for industrial bifacial TOPCon silicon solar cells
Grübel, Benjamin; Cimiotti, Gisela; Schmiga, Christian; Schellinger, Stefan; Steinhauser, Bernd; Brand, Andreas; Kamp, Mathias; Sieber, Markus; Brunner, Damian; Fox, Stephen; Kluska, Sven
Zeitschriftenaufsatz
Journal Article
2022 Investigation of the Defect Distribution of Laser Contact Opening Applied to poly-Si/SiNx Stacks
Steinhauser, B.; Arya, V.; Jakob, L.; Heinz, F.; Schmiga, C.; Grübel, B.; Brand, A.; Kluska, S.; Nekarda, J.
Zeitschriftenaufsatz
Journal Article
2022 Low-Budget Photoluminescence Imaging
Greulich, Johannes; Brand, Andreas; Höffler, Hannes; Rein, Stefan
Konferenzbeitrag
Conference Paper
2022 Uniformity Analysis of Metallization-Induced Recombination Losses by Photoluminescence Imaging
Wolf, Andreas; Herrmann, David; Falconi, David; Ourinson, Daniel; Brand, Andreas; Lohmüller, Sabrina; Höffler, Hannes; Fell, Andreas
Konferenzbeitrag
Conference Paper
2022 Systematic study of GHz-burst femtosecond laser ablation of 4H-SiC wafers
Mir, Hanan; Meyer, Fabian; Dulitz, Katrin; Brand, Andreas; Nekarda, Jan
Vortrag
Presentation
2022 Back-contact solar cells at Fraunhofer ISE
Huyeng, Jonas; Efinger, Raphael; Schweigstill, Tadeo; Fellmeth, Tobias; Rendler, Li Carlos; Brand, Andreas; Spribille, Alma; Heinrich, Martin; Eitner, Ulrich; Keding, Roman; Clement, Florian
Vortrag
Presentation
2022 Enabling savings in silver consumption and poly-Si thickness by integration of plated Ni/Cu/Ag contacts for bifacial TOPCon solar cells
Kluska, Sven; Haberstoh, Rene; Grübel, Benjamin; Cimiotti, Gisela; Kamp, Mathias; Schmiga, Christian; Brand, Andreas; Steinhauser, Bernd; Nägele, Andreas; Passig, Michael; Sieber, Markus; Brunner, Damian; Fox, Stephen
Zeitschriftenaufsatz
Journal Article
2021 Temperature Gradient Image Analysis to optimize an Ultrafast Regeneration of boron-oxygen-related defects
Roder, S.; Niewelt, T.; Brand, A.; Schneider, J.; Nekarda, J.
Zeitschriftenaufsatz
Journal Article
2020 TOPCon Solar Cells: Laser Ablation and Contact Formation Strategies
Arya, V.; Schellinger, S.; Fellmeth, T.; Steinhauser, B.; Gruebel, B.; Brand, A.
Konferenzbeitrag
Conference Paper
2020 Laser Metal Bonding (LMB) - Low Impact Joining of Thin Aluminum Foil to PERC and TOPCon Rear Side Surfaces
John, O.; Emanuel, G.; Paschen, J.; Rose, A. de; Steinhauser, B.; Brand, A.; Nekarda, J.
Konferenzbeitrag
Conference Paper
2020 Review and Recent Development in Combining Photoluminescence- and Electroluminescence-Imaging with Carrier Lifetime Measurements via Modulated Photoluminescence at Variable Temperatures
Höffler, H.; Schindler, F.; Brand, A.; Herrmann, D.; Eberle, R.; Post, R.; Kessel, A.; Greulich, J.; Schubert, M.C.
Konferenzbeitrag
Conference Paper
2019 Verfahren zur Herstellung einer photovoltaischen Solarzelle, photovoltaische Solarzelle und Photovoltaikmodul
Nekarda, Jan; Brand, Andreas; Graf, Martin; Rose, Angela; Kraft, Achim
Patent
2019 Optical evaluation of laser generated plating seed layers
Franzl, Y.; Widmaier, Y.; Kroyer, T.; Brand, A.; Kühnhold-Pospischil, S.; Nekarda, J.
Konferenzbeitrag
Conference Paper
2019 Verfahren zur Herstellung einer photovoltaischen Solarzelle und photovoltaische Solarzelle
Nekarda, Jan; Brand, Andreas; Nagel, Henning
Patent
2019 FoilMet® - Connect: A New Rear Metallization Upgrade for PERC and other Cell Concepts
Paschen, Jan Tobias; Emanuel, Gernot; Brand, Andreas; Fellmeth, Tobias; Rose, Angela de; John, Oliver; Nekarda, Jan
Konferenzbeitrag
Conference Paper
2019 Non-Destructive Approach for Measuring Base Resistivity of Emitter-Diffused, Partially-Processed Wafers Using Temperature-Stage QSSPC
Kuruganti, V.; Haunschild, J.; Brand, A.; Al-Hajjawi, S.; Rein, S.; Glunz, S.W.
Konferenzbeitrag
Conference Paper
2019 A Novel TLM Analysis for Solar Cells
Mir, H.; Arya, V.; Höffler, H.; Brand, A.
Zeitschriftenaufsatz
Journal Article
2019 Verfahren zur Herstellung einer photovoltaischen Solarzelle und photovoltaische Solarzelle
Nekarda, Jan; Brand, Andreas; Graf, Martin; Preu, Ralf
Patent
2019 New Approach for a Combined Process of an Ultrafast Boron-Oxygen Defect Regeneration and Thermal Contact Treatment of Ni/Cu/Ag Plated Solar Cells
Roder, S.; Arya, V.; Mir, H.; Grübel, B.; Kluska, S.; Bay, N.; Pysch, D.; Krauß, K.; Brand, A.; Nekarda, J.
Konferenzbeitrag
Conference Paper
2018 All Copper NICE Modules
Reinwand, D.; Pysch, D.; Bay, N.; Burschik, J.; Kuehnlein, H.H.; Madon, F.; Einhaus, R.; Brand, A.; Arya, V.; Smith, B.; Richter, D.; Kray, D.
Konferenzbeitrag
Conference Paper
2017 Verfahren und Vorrichtung zum Stabilisieren einer photovoltaischen Silizium-Solarzelle
Nekarda, Jan; Brand, Andreas; Rein, Stefan; Krauß, Karin; Fertig, Fabian
Patent
2017 Vorrichtung und Verfahren zur Bearbeitung eines Halbleitersubstrats mittels Laserstrahlung
Nekarda, Jan; Brand, Andreas; Graf, Martin
Patent
2017 Ultrafast in-line capable regeneration process for preventing light induced degradation of boron-doped p-type Cz-silicon PERC solar cells
Brand, A.; Krauß, K.; Wild, P.; Schörner, S.; Gutscher, S.; Roder, S.; Rein, S.; Nekarda, J.
Konferenzbeitrag
Conference Paper
2017 Comparison of line-wise pl-imaging and area-wise pl-imaging
Höffler, H.; Dost, G.; Brand, A.; Haunschild, J.; Schremmer, H.; Bergmann, A.
Zeitschriftenaufsatz
Journal Article
2017 Mesa Separation of GaInP Solar Cells by Picosecond Laser Ablation
Weber, J.; Klinger, V.; Brand, A.; Gutscher, S.; Wekkeli, A.; Mondon, A.; Oliva, E.; Dimroth, F.
Zeitschriftenaufsatz
Journal Article
2017 Experimental verification of internal resistance moldels for PERT-type solar cells
Meier, S.; Unmüßig, S.; Brand, A.; Saint-Cast, P.; Fellmeth, T.; Wolf, A.; Glunz, S.
Zeitschriftenaufsatz
Journal Article
2016 Fast Regeneration Process to Avoid Light-Induced Degradation in Multicrystalline Silicon Solar Cells
Krauß, K.; Brand, A.; Fertig, F.; Rein, S.; Nekarda, J.
Zeitschriftenaufsatz
Journal Article
2016 20% efficient n-type Cz-Si MWT solar cells with adjustable reverse behavior
Lohmüller, E.; Werner, S.; Maus, S.; Brand, A.; Jäger, U.; Clement, F.
Zeitschriftenaufsatz
Journal Article
2016 Simplified fabrication of n-type Cz-Si HIP-MWT+ solar cells with 20% efficiency using laser structuring
Lohmüller, E.; Werner, S.; Maus, S.; Brand, A.; Jäger, U.; Nekarda, J.; Clement, F.
Zeitschriftenaufsatz
Journal Article
2015 Analysis and performance of dispensed and screen printed front side contacts at cell and module level
Rodriguez, C.; Pospischil, M.; Padilla, A.; Kuchler, M.; Klawitter, M.; Geipel, T.; Padilla, M.; Fellmeth, T.; Brand, A.; Efinger, R.; Linse, M.; Gentischer, H.; König, M.; Hörteis, M.; Wende, L.; Doll, O.; Clement, F.; Biro, D.
Konferenzbeitrag
Conference Paper
2014 Micro characterization and imaging of spikes in nickel plated solar cells
Büchler, A.; Kluska, S.; Brand, A.; Geisler, C.; Hopman, S.; Glatthaar, M.
Zeitschriftenaufsatz
Journal Article
2014 Plated Nickel-Copper contacts on c-Si. From microelectronic processing to cost effective silicon solar cell production
Mondon, A.; Bartsch, J.; Kamp, M.; Brand, A.; Steinhauser, B.; Bay, N.; Horzel, J.; Glatthaar, M.; Glunz, S.W.
Konferenzbeitrag
Conference Paper
2014 Verfahren zur Ablation einer Schicht
Brand, Andreas; Nekarda, Jan
Patent
2014 Laserbasiertes Verfahren und Bearbeitungstisch zur lokalen Kontaktierung eines Halbleiterbauelements
Nekarda, Jan; Rodofili, Andreas; Brand, Andreas; Graf, Martin; Preu, Ralf
Patent
2014 Optimizing Fine Line Dispensed Contact Grids
Pospischil, M.; Fellmeth, T.; Brand, A.; Nold, S.; Kuchler, M.; Klawitter, M.; Gentischer, H.; Clement, F.; Biro, D.; König, M.; Hörteis, M.; Wende, L.; Doll, O.; Zengerle, R.
Zeitschriftenaufsatz
Journal Article
2014 Reduction of Picosecond Laser Ablation Threshold and Damage Via Nanosecond Pre-Pulse for Removal of Dielectric Layers on Silicon Solar Cells
Brand, A.; Meyer, F.; Nekarda, J.-F.; Preu, R.
Zeitschriftenaufsatz
Journal Article
2013 Laser assisted honeycomb-texturing on multicrystalline silicon for industrial applications
Volk, A.-K.; Gutscher, S.; Brand, A.; Wolke, W.; Zimmer, M.; Reinecke, H.
Konferenzbeitrag
Conference Paper
2013 Multifunctional PECVD layers: Dopant source, passivation, and optics
Seiffe, J.; Pillath, F.; Trogus, D.; Brand, A.; Savio, C.; Hofmann, M.; Rentsch, J.; Preu, R.
Zeitschriftenaufsatz
Journal Article
2012 Nanosecond laser annealing to decrease the damage of picosecond laser ablation of anti-reflection layers on textured silicon surfaces
Brand, A.; Knorz, A.; Zeidler, R.; Nekarda, J.-F.; Preu, R.
Konferenzbeitrag
Conference Paper
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