Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2019Enabling the Measurement of Thermomechanical Stress in Solar Cells and PV Modules by Confocal Micro-Raman Spectroscopy
Beinert, A.; Büchler, A.; Romer, P.; Haueisen, V.; Rendler, L.C.; Schubert, M.C.; Heinrich, M.; Aktaa, J.; Eitner, U.
Journal Article
2019Thermochemical Stress in Solar Cells: Contact Pad Modeling and Reliability Analysis
Rendler, L.; Romer, P.; Beinert, A.; Stecklum, S.; Kraft, A.; Eitner, U.; Wiese, S.
Journal Article
2018Analysis of Grain-Size Distribution and Yield Strength of Interconnector Ribbons and Wires at Different Streching Conditions Using Color Etching
Walter, J.; Stegmaier, J.; Kraft, A.; Eitner, U.
Conference Paper
2018Influence of Interconnection Concepts for IBC Solar Cell Performance by Simulation
Huyeng, J.D.; Spribille, A.; Rendler, L.C.; Ebert, C.; Eitner, U.; Keding, R.
Conference Paper
2018Mechanical and electrical properties of wave-shaped wires for low-stress interconnection of solar cells
Rendler, L.; Walter, J.; Goldenberg, S.; Beinert, A.J.; Wiese, S.; Eitner, U.
Journal Article
2018Optimization of electrically conductive adhesive bonds in photovoltaic modules
Geipel, T.; Meinert, M.; Kraft, A.; Eitner, U.
Journal Article
2018Rapid Calculation of the Backsheet Coupling Gain Using Ray Groups
Pfreundt, A.; Mittag, M.; Heinrich, M.; Eitner, U.
Conference Paper
2018Solder joint analysis on coated aluminum for silicon solar cell interconnection
De Rose, A.; Kraft, A.; Eitner, U.; Nowottnick, M.
Conference Paper
2018Stress mapping by confocal raman spectroscopy on solar cells and modules
Beinert, Andreas J.; Büchler, A.; Romer, P.; Heinrich, M.; Schubert, M.C.; Aktaa, J.; Eitner, U.
Conference Paper
2018Wave-Shaped Wires Soldered on the Finger Grid of Solar Cells: Solder Joint Stability under Thermal Cycling
Rendler, L.; Haryantho, A.P.; Walter, J.; Huyeng, J.; Kraft, A.; Wiese, S.; Eitner, U.
Conference Paper
2017FEM-based development of novel back-contact PV modules with ultra-thin solar cells
Beinert, Andreas; Leidl, Roman; Sommeling, Paul; Eitner, Ulrich; Aktaa, Jarir
Conference Paper
2017Intermetallic compounds in solar cell interconnections: Microstructure and growth kinetics
Geipel, T.; Moeller, M.; Walter, J.; Kraft, A.; Eitner, U.
Journal Article
2017Investigation of BC Architectures along TRL at FHG-ISE
Keding, R.; Reichel, C.; Müller, R.; Huyeng, J.; Rendler, L.C.; Spribille, A.; Hermle, M.; Eitner, U.; Clement, F.
Presentation
2017Low-temperature soldering for the interconnection of silicon heterojunction solar cells
De Rose, A.; Erath, D.; Geipel, T.; Kraft, A.; Eitner, U.
Conference Paper
2017Morpho butterfly inspired coloured BIPV modules
Bläsi, B.; Kroyer, T.; Höhn, O.; Wiese, M.; Ferrara, C.; Eitner, U.; Kuhn, T.E.
Conference Paper
2017Power loss through decorative elements in the front glazing of BIPV modules
Mittag, M.; Kutter, C.; Ebert, M.; Wilson, H.R.; Eitner, U.
Conference Paper
2017Qualification of conductive adhesives for photovoltaic application - Accelerated ageing tests
Bauermann, L.P.; Fokuhl, E.; Stecklum, S.; Philipp, D.; Geipel, T.; Kraft, A.; Eitner, U.; Fischer, T.; Breitenbücher, D.
Journal Article, Conference Paper
2017Ribbon interconnection of 6" BC-BJ Solar Cells
Walter, Johann; Rendler, Li Carlos; Halm, Andreas; Mihailetchi, Valentin; Kraft, Achim; Eitner, Ulrich
Journal Article, Conference Paper
2017Shingled cell interconnection: A new generation of bifacial PV-modules
Klasen, N.; Mondon, A.; Kraft, A.; Eitner, U.
Conference Paper
2017Solar potential on commercial trucks: Results of an irradiance measurement campaign on 6 trucks in Europe and USA
Eitner, U.; Ebert, M.; Zech, T.; Schmid, C.; Watts, A.; Heinrich, M.
Conference Paper
2017Solder interconnection of aluminum foil rear side metallization for passivated emitter and rear solar cells
De Rose, A.; Kraft, A.; Gledhill, S.; Ali, M.T.; Kroyer, T.; Pscherer, C.; Graf, M.; Nekarda, J.; Eitner, U.
Conference Paper
2017Solder joint stability study of wire-based interconnection compared to ribbon interconnection
Walter, J.; Rendler, L.C.; Ebert, C.; Kraft, A.; Eitner, U.
Journal Article, Conference Paper
2017Thermomechanical stress analysis of PV module production processes by Raman spectroscopy and FEM simulation
Beinert, A.J.; Romer, P.; Büchler, A.; Haueisen, V.; Aktaa, J.; Eitner, U.
Journal Article, Conference Paper
2017TPedge: Progress on cost-efficient and durable edge-sealed PV modules
Mittag, M.; Eitner, U.; Neff, T.
Conference Paper
2017Ultra-soft wires for direct soldering on finger grids of solar cells
Rendler, L.C.; Walter, J.; Kraft, A.; Ebert, C.; Wiese, S.; Eitner, U.
Journal Article, Conference Paper
2017Ultrasonically tinned PVD AL rear contacts on high-efficiency crystalline silicon solar cells for module integration
Nagel, H.; Eberlein, D.; Hoffmann, S.; Graf, M.; Steinhauser, B.; Feldmann, F.; Kraft, A.; Eitner, U.; Glatthaar, M.; Hermle, M.; Glunz, S.W.; Haverkamp, H.; Fischer, T.; Hain, A.; Wohlfart, P.; Mertens, V.; Müller, J.; Buck, T.
Conference Paper
2016A comprehensive study of intermetallic compounds in solar cell interconnections and their growth kinetics
Geipel, T.; Moeller, M.; Kraft, A.; Eitner, U.
Journal Article, Conference Paper
2016Comprehensive Study of Intermetallic Compounds in Solar Cell Interconnections Including Lead-Free, Low Melting Point Solders
Geipel, T.; Möller, M.; Kraft, A.; Eitner, U.
Conference Paper
2016The impact of ribbon properties on measured peel forces
Eitner, U.; Rendler, L.C.
Journal Article, Conference Paper
2016Influence of Photovoltaic Module Mounting Systems on the Thermo-Mechanical Stresses in Solar Cells by FEM Modelling
Beinert, A.J.; Ebert, M.; Eitner, U.; Aktaa, J.
Conference Paper
2016Investigation of Thermomechanical Stress in Solar Cells with Multi Busbar Interconnection by Finite Element Modeling
Rendler, L.C.; Kraft, A.; Ebert, C.; Wiese, S.; Eitner, U.
Conference Paper
2016Low-temperature interconnection of PVD-aluminium metallization
Geipel, T.; Kumm, J.; Moeller, M.; Kroely, L.; Kraft, A.; Eitner, U.; Wolf, A.; Zhang, Z.; Wolfahrt, P.
Journal Article, Conference Paper
2016Mechanical stress in solar cells with multi busbar interconnection - parameter study by FEM simulation
Rendler, L.C.; Kraft, A.; Ebert, C.; Eitner, U.; Wiese, S.
Conference Paper
2016Mosaic modules for improved design options in building integrated photovoltaic modules
Ebert, M.; Mittag, M.; Fellmeth, T.; Spribille, A.; Mindehoud, T.; Gijzen, G.; Fath, K.; Hecker, R.; Eitner, U.
Conference Paper
2016TPEDGE: Glass-glass photovoltaic module for BIPV-applications
Mittag, M.; Neff, T.; Hoffmann, S.; Ebert, M.; Eitner, U.; Wirth, H.
Conference Paper
2015A low concentrating cell and receiver concept based on low cost silicon solar cells
Ebert, M.; Fellmeth, T.; Dörsam, T.; Clement, F.; Biro, D.; Wiesenfarth, M.; Eitner, U.
Conference Paper
2015Mechanical and chemical characterization of solder joints after accelerated ageing tests
Dürr, I.; Walter, J.; Kraft, A.; Weiß, K.-A.; Eitner, U.; Volk, M.; Ebert, C.
Conference Paper
2015Modelling and verification of mechanical stress induced by soldering of wires for multi busbar interconnection
Rendler, L.C.; Walter, J.; Geipel, T.; Volk, M.; Ebert, C.; Eitner, U.
Conference Paper
2015Reduction of thermomechanical stress using electrically conductive adhesives
Geipel, T.; Rendler, L.; Stompe, M.; Eitner, U.; Rissing, L.
Journal Article, Conference Paper
2015TPedge: Qualification of a gas-filled, encapsulation-free glass-glass photovoltaic module
Mittag, M.; Haedrich, I.; Neff, T.; Hoffmann, S.; Eitner, U.; Wirth, H.
Conference Paper
2015Triangular Ribbons for Improved Module Efficiency
Mittag, M.; Beinert, A.J.; Rendler, L.C.; Ebert, M.; Eitner, U.
Conference Paper
2014All-purpose cell and module architecture for low-irradiance and concentrator applications
Fellmeth, T.; Ebert, M.; Efinger, R.; Hädrich, I.; Clement, F.; Eitner, U.
Journal Article
2014The impact of angular dependent loss measurement on PV module energy yield prediction
Ebert, M.; Stascheit, H.; Hädrich, I.; Eitner, U.
Conference Paper
2014A Low Concentration Receiver Concept for Cost Effective Crystalline Back Contact Cells
Ebert, M.; Dörsam, T.; Fellmeth, T.; Hädrich, I.; Eitner, U.; Biro, D.; Wiesenfarth, M.; Noriega, P.; Caparros, S.; Castano, F.
Conference Paper
2014The Mechanical Theory Behind the Peel Test
Eitner, U.; Rendler, L.C.
Conference Paper
2014Multi-wire interconnection of busbar-free solar cells
Walter, J.; Tranitz, M.; Volk, M.; Ebert, C.; Eitner, U.
Conference Paper, Journal Article
2014Peel testing of ribbons on solar cells at different angles: Consistent comparison by using adhesive fracture energies
Eitner, U.; Rendler, L.C.
Conference Paper
2014Reliable interconnection of the front side grid fingers using silver-reduced conductive adhesives
Geipel, T.; Huq, M.Z.; Eitner, U.
Conference Paper, Journal Article
2014Robust module integration of back contact cells by interconnection adapters
Ebert, M.; Seckel, M.; Böttcher, L.; Hendrichs, M.; Clement, F.; Dürr, I.; Biro, D.; Eitner, U.; Schneider-Ramelow, M.
Conference Paper
2014Unified methodology for determining CTM ratios: Systematic prediction of module power
Haedrich, I.; Eitner, U.; Wiese, M.; Wirth, H.
Journal Article, Conference Paper
2013Adhesion of Al-Metallization in Ultra-Sonic Soldering on the Al-Rear Side of Solar Cells
Schmitt, P.; Eberlein, D.; Tranitz, M.; Eitner, U.; Wirth, H.; Ebert, C.
Conference Paper, Journal Article
2013Bow of silicon wafers after in-line high-rate evaporation of aluminum
Mader, C.; Eitner, U.; Kajari-Schröder, S.; Brendel, R.
Journal Article
2013Cost-optimized metallization layout for metal wrap through (MWT) solar cells and modules
Hendrichs, M.; Thaidigsmann, B.; Fellmeth, T.; Nold, S.; Spribille, A.; Herrmann, P.; Mittag, M.; Hädrich, I.; Eitner, U.; Clement, F.; Biro, D.; Preu, R.
Conference Paper
2013Cure kinetics of electrically conductive adhesives
Geipel, T.; Eitner, U.
Conference Paper
2013Cure kinetics of electrically conductive adhesives for solar cell interconnection
Geipel, T.; Eitner, U.
Journal Article
2013Electrically Conductive Adhesives-An Emerging Interconnection Technology for High-Efficiency Solar Modules
Geipel, T.; Eitner, U.
Journal Article
2013Evaluation of solder resists for module integration of MWT solar cells
Walter, J.; Hendrichs, M.; Clement, F.; Tranitz, M.; Eitner, U.
Journal Article, Conference Paper
2013Minimizing the optical cell-to-module losses for MWT-modules
Haedrich, I.; Wiese, M.; Thaidigsman, B.; Eberlein, D.; Clement, F.; Eitner, U.; Preu, R.; Wirth, H.
Conference Paper
2012Characterization of electrically conductive adhesives
Eitner, U.; Geipel, T.; Holtschke, S.N.; Tranitz, M.
Journal Article, Conference Paper
2012HIP-MWT solar cells - pilot-line cell processing and module integration
Drews, A.; Clement, F.; Spribille, A.; Thaidigsmann, B.; Linse, M.; Gutscher, S.; Werner, S.; Reitenbach, V.; Ould Chighali, E.; Wolf, A.; Zimmer, M.; Nekarda, J.; Haedrich, I.; Tranitz, M.; Eitner, U.; Wirth, H.; Wilson, H.R.; Biro, D.; Preu, R.
Conference Paper
2012Interconnector-based module technology for thin MWT cells
Eitner, U.; Eberlein, D.; Tranitz, M.
Conference Paper
2012Intermetallic phase growth and reliability of Sn-Ag-soldered solar cell joints
Schmitt, P.; Kaiser, P.; Savio, C.; Tranitz, M.; Eitner, U.
Journal Article, Conference Paper
2012A method to detect defective solder joints by Rs-electroluminescence imaging
Walter, J.; Eberlein, D.; Haunschild, J.; Tranitz, M.; Eitner, U.
Journal Article, Conference Paper
2011Thermo-mechanical assessment of solar cell displacement with respect to the viscoelastic behaviour of the encapsulant
Pander, M.; Dietrich, S.; Schulze, S.-H.; Eitner, U.; Ebert, M.
Conference Paper