Now showing items 21-40 of 90

  • “Cold” process for IBC c-Si solar cells fabrication 

    López Rodríguez, Gema; Ortega Villasclaras, Pablo Rafael; Martín García, Isidro; Voz Sánchez, Cristóbal; Orpella García, Alberto; Alcubilla González, Ramón (Elsevier, 2016)
    Conference lecture
    Open Access
  • Crystalline silicon solar cells beyond 20% efficiency 

    Alcubilla González, Ramón; García Molina, Francisco Miguel; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Orpella García, Alberto; Martín García, Isidro; Colina, M.; Voz Sánchez, Cristóbal; Bermejo Broto, Sandra; Puigdollers i González, Joaquim (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
    Conference report
    Open Access
    —This paper describes a fabrication process to obtain high efficiency c-Si cells (> 20%) based on the Laser Fired Contact Passivated Emitter Rear Cell (LFC-PERC) concept. Photovoltaic efficiencies beyond 20% have ...
  • c-Si photovoltaic arrays 

    Bermejo Broto, Sandra; Ortega Villasclaras, Pablo Rafael; Castañer Muñoz, Luis María (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
    Conference report
    Open Access
    Crystalline silicon small photovoltaic arrays are shown. Electrical isolation of individual cells and series connection between them to integrate series arrays are discussed. High open circuit voltage values in the range ...
  • c-Si solar cells based on laser-processed dielectric films 

    Martín García, Isidro; Colina Brito, Mónica Alejandra; Coll Valentí, Arnau; López Rodríguez, Gema; Ortega Villasclaras, Pablo Rafael; Orpella García, Alberto; Alcubilla González, Ramón (2014-09)
    Article
    Restricted access - publisher's policy
    This paper shows an innovative and low temperature fabrication technology for crystalline silicon (c-Si) solar cells where the highly-doped regions are punctually defined through laser processed dielectric films. ...
  • DISPOSITIUS I TECNOLOGIES (Examen 1r quadrimestre) 

    Ortega Villasclaras, Pablo Rafael (Universitat Politècnica de Catalunya, 2001-01-12)
    Exam
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  • DISPOSITIUS I TEGNOLOGIES (Examen 1r quadrimestre) 

    Ortega Villasclaras, Pablo Rafael (Universitat Politècnica de Catalunya, 2004-01-31)
    Exam
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  • DISPOSITIUS I TEGNOLOGIES (Examen 1r quadrimestre) 

    Ortega Villasclaras, Pablo Rafael (Universitat Politècnica de Catalunya, 2004-01-31)
    Exam
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  • DopLa solar cells with texturized front surface 

    Martín García, Isidro; Coll Valentí, Arnau; López Rodríguez, Gema; Ortega Villasclaras, Pablo Rafael; López González, Juan Miguel; Alcubilla González, Ramón (Elsevier, 2016)
    Conference report
    Open Access
    In this work, we report on improving efficiency of DopLa cells fabricated on p-type substrates. This type of solar cells has all the highly-doped regions based on laser doping from dielectric films resulting in a very ...
  • Electron selective contacts based on Al2O3/TiO2/ZnO stacks for crystalline silicon solar cells 

    Zafoschnig, Lisa; Ortega Villasclaras, Pablo Rafael; Martín García, Isidro; Masmitjà Rusiñol, Gerard; López Rodríguez, Gema; Alcubilla González, Ramón (2018)
    Conference lecture
    Restricted access - publisher's policy
    In the last years, our research group has focused on the development of Interdigitated Back Contacted (IBC) solar cells based on transition metal oxides. In particular, a very thin Al2O3/TiO2 stack deposited by ALD has ...
  • Emitter formation using laser doping technique on n- and p-type c-Si substrates 

    López Rodríguez, Gema; Ortega Villasclaras, Pablo Rafael; Colina Brito, Mónica Alejandra; Voz Sánchez, Cristóbal; Morales Vilches, Ana Belén; Orpella García, Alberto; Alcubilla González, Ramón (2015-05-01)
    Article
    Open Access
    In this work laser doping technique is used to create highly-doped regions defined in a point-like structure to form n+/p and p+/n junctions applying a pulsed Nd-YAG 1064 nm laser in the n ...
  • Enabling silicon-on-silicon photonics with pedestalled Mie resonators 

    Garin Escriva, Moises; Solà, Magdalena; Julian, Anatole Alexandre; Ortega Villasclaras, Pablo Rafael (2018-07-19)
    Article
    Open Access
    High-refractive-index Mie resonators are regarded as promising building blocks for low-loss all-dielectric nanophotonic applications. To avoid the otherwise excessive damping and loss of symmetry such devices typically ...
  • Examen Final 

    Garcies Salvà, Pau; López González, Juan Miguel; Orpella García, Alberto; Ortega Villasclaras, Pablo Rafael; Turó Peroy, Antonio; Vidal López, Eva María (Universitat Politècnica de Catalunya, 2015-01-16)
    Exam
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  • Examen Final 

    Prat Viñas, Lluís; Ortega Villasclaras, Pablo Rafael; López González, Juan Miguel; Martín García, Isidro; Fernández, Mireia; Bermejo Broto, Sandra; Altet Sanahujes, Josep; Puigdollers i González, Joaquim; Rodriguez, Angel; Voz Sánchez, Cristóbal (Universitat Politècnica de Catalunya, 2015-01-16)
    Exam
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  • Examen Final 

    Altet Sanahujes, Josep; Bermejo Broto, Sandra; Fernández Chimeno, Mireya; Martín García, Isidro; Orpella García, Alberto; Ortega Villasclaras, Pablo Rafael; Prat Viñas, Lluís; Puigdollers i González, Joaquim; Rodríguez Martínez, Ángel; Voz Sánchez, Cristóbal (Universitat Politècnica de Catalunya, 2013-01-08)
    Exam
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  • Examen Final 

    Chávez Domínguez, Juan Antonio; García González, Miguel Ángel; López, J. M.; Ortega Villasclaras, Pablo Rafael; Pol Fernández, Clemente; Turó Peroy, Antonio (Universitat Politècnica de Catalunya, 2018-06-15)
    Exam
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  • Experimental determination of base resistance contribution for point-like contacted c-Si solar cells using impedance spectroscopy analysis 

    Orpella García, Alberto; Martín García, Isidro; López González, Juan Miguel; Ortega Villasclaras, Pablo Rafael; Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Alcubilla González, Ramón (2015-10)
    Article
    Open Access
    One of the most common strategies in high-efficiency crystalline silicon (c-Si) solar cells for the rear surface is the combination of a dielectric passivation with a point-like contact to the base. In such devices, the ...
  • From random to order: Colloidal crystals on non-flat surfaces 

    Coll Valentí, Arnau; Bermejo Broto, Sandra; Martín García, Isidro; Ortega Villasclaras, Pablo Rafael; Alcubilla González, Ramón (2016-03-05)
    Article
    Open Access
    © 2016 Elsevier B.V. All rights reserved. This paper introduces the possibility to produce 1-2 cm2 and tens of layers colloidal crystals on different non-flat surfaces by means of electrospray deposition. Two different ...
  • Fully low temperature interdigitated back-contacted c-Si(n) solar cells based on laser-doping from dielectric stacks 

    Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Muñoz Martín, David; Martín García, Isidro; Voz Sánchez, Cristóbal; Molpeceres Alvarez, Carlos; Alcubilla González, Ramón (2017-09-01)
    Article
    Open Access
    This work shows a novel fabrication process of interdigitated back-contacted c-Si(n) solar cells based on laser-doped point contacts. In this approach, all the highly-doped regions have been entirely fabricated through UV ...
  • High efficiency black silicon Interdigitated Back Contacted solar cells on p- and n-type c-Si substrates 

    Ortega Villasclaras, Pablo Rafael; Calle, Eric; von Gastrow, Guillaume; Repo, Päivikki; Carrió, David; Savin, Hele; Alcubilla, Ramón (2015)
    Article
    Open Access
    This work demonstrates the high potential of Al2O3 passivated black silicon in high-efficiency interdigitated back contacted (IBC) solar cells by reducing surface reflectance without jeopardizing surface passivation. Very ...
  • High efficiency interdigitated back-contact c-Si solar cells 

    Calle Martín, Eric; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Martín García, Isidro; Carrió Díaz, David; Voz Sánchez, Cristóbal; Orpella García, Alberto; Puigdollers i González, Joaquim; Alcubilla González, Ramón (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Open Access
    In this work we describe a baseline fabrication process of interdigitated-back-contact c-Si(p) solar cells, which combines conventional diffusion oven stages to define base p+ and emitter n+ regions at the backside, with ...