Browsing by Author "b907a09a-dcea-4b3a-ac0f-9246dfa40fb7"

Browsing by Author "b907a09a-dcea-4b3a-ac0f-9246dfa40fb7"

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  • A comparison of models to optimize Partial Rear Contact solar cells 
    Cuevas, Andres; Yan, Di; Haase, Felix; Petermann, Jan-Hendrik; Brendel, Rolf (Amsterdam : Elsevier, 2013)
    The optimization of solar cells with localized rear contacts usually requires numerical simulation. Here we compare Sentaurus Device to a simpler Conductive Boundary (CoBo) simulator and to an approximate Geometric model. ...
  • Cracks in solar cell metallization leading to module power loss under mechanical loads 
    Kasewieter, Jörg; Haase, Felix; Larrodé, Marta Haro; Köntges, Marc (London : Elsevier Ltd., 2014)
    We investigate the mechanisms leading to electrically insulated cell parts in a photovoltaic module under mechanical load. For this we measure the resistances across a crack in a laminated solar cell during bending that ...
  • Firing stability of tube furnace-annealed n-type poly-Si on oxide junctions 
    Hollemann, Christina; Rienäcker, Michael; Soeriyadi, Anastasia; Madumelu, Chukwuka; Haase, Felix; Krügener, Jan; Hallam, Brett; Brendel, Rolf; Peibst, Robby (Chichester : Wiley, 2022)
    Stability of the passivation quality of poly-Si on oxide junctions against the conventional mainstream high-temperature screen-print firing processes is highly desirable and also expected since the poly-Si on oxide preparation ...
  • For none, one, or two polarities—How do POLO junctions fit best into industrial Si solar cells? 
    Peibst, Robby; Kruse, Christian; Schäfer, Sören; Mertens, Verena; Bordihn, Stefan; Dullweber, Thorsten; Haase, Felix; Hollemann, Christina; Lim, Bianca; Min, Byungsul; Niepelt, Raphael; Schulte‐Huxel, Henning; Brendel, Rolf (Chichester : Wiley, 2019-11-05)
    We present a systematic study on the benefit of the implementation of poly-Si on oxide (POLO) or related junctions into p-type industrial Si solar cells as compared with the benchmark of Passivated Emitter and Rear Cell ...
  • Impact of the contacting scheme on I-V measurements of metallization-free silicon heterojunction solar cells 
    Brinkmann, Malte; Haase, Felix; Bothe, Karsten; Bittkau, Karsten; Lambertz, Andreas; Duan, Weiyuan; Ding, Kaining; Sperlich, Hans-Peter; Waltinger, Andreas; Schulte-Huxel, Henning (Les Ulis : EDP Sciences, 2023)
    I-V measurements are sensitive to the number and positioning of current and voltage sensing contacts. For busbarless solar cells, measurement setups have been developed using current collection wires and separate voltage ...
  • Layer selective laser ablation for local contacts to thin emitters 
    Haase, Felix; Rojas, Enrique Garralaga; Bothe, Karsten; Brendel, Rolf (Amsterdam : Elsevier BV, 2011)
    High efficiency solar cells require high generation and low recombination rates. High bulk lifetime, well passivated surfaces, and lowly doped thin emitters allow for low recombination rates. Thin passivated emitters should ...
  • Loss analysis of back-contact back-junction thin-film monocrystalline silicon solar cells 
    Haase, Felix (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2013)
    [no abstract]
  • On the chances and challenges of combining electron-collecting nPOLO and hole-collecting Al-p+ contacts in highly efficient p-type c-Si solar cells 
    Peibst, Robby; Haase, Felix; Min, Byungsul; Hollemann, Christina; Brendemühl, Till; Bothe, Karsten; Brendel, Rolf (Chichester : Wiley, 2022)
    ISFH is following a distinct cell development roadmap, which comprises—as a short-term concept—the combination of an n-type doped electron-collecting poly-Si on oxide (POLO) junction with an Al-alloyed p+ junction for hole ...
  • A round Robin-Highliting on the passivating contact technology 
    Fellmeth, Tobias; Feldmann, Frank; Steinhauser, Bernd; Nagel, Henning; Mack, Sebastian; Hermle, Martin; Torregrosa, Frank; Ingenito, Andrea; Haug, Franz-Josef; Morisset, Audrey; Buchholz, Florian; Chaudhary, Aditya; Desrues, Thibaut; Haase, Felix; Min, Byungsul; Peibst, Robby; Tous, Loic (Les Ulis : EDP Sciences, 2021)
    The aim of this work is to demonstrate the maturity of the TOPCon technology by conducting a round-robin on symmetrically processed lifetime samples in the leading European PV institutes EPFL, ISC, CEA-INES, ISFH, IMEC and ...
  • Simulation-based roadmap for the integration of poly-silicon on oxide contacts into screen-printed crystalline silicon solar cells 
    Kruse, Christian N.; Schäfer, Sören; Haase, Felix; Mertens, Verena; Schulte-Huxel, Henning; Lim, Bianca; Min, Byungsul; Dullweber, Thorsten; Peibst, Robby; Brendel, Rolf (London : Nature Publishing Group, 2021)
    We present a simulation-based study for identifying promising cell structures, which integrate poly-Si on oxide junctions into industrial crystalline silicon solar cells. The simulations use best-case measured input ...
  • Understanding the Movement of Cracked Solar Cell Parts in PV-modules during Mechanical Loading 
    Haase, Felix; Käsewieter, Jörg; Köntges, Marc (London : Elsevier Ltd., 2016)
    We measure the three dimensional movement of cracked solar cell parts in standard sized PV-modules during a four line bending test. We develop a model which explains this movement assuming that the centers of mass of the ...