Now showing items 1-9 of 9

    • 3D metallo-dielectric structures combining electrochemical and electroplating techniques 

      Hernández Díaz, David; Lange, D.; Todorov Trifonov, Trifon; Garin Escriva, Moises; García Molina, Francisco Miguel; Rodríguez Martínez, Ángel; Alcubilla González, Ramón (2010-06)
      Article
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      Three-dimensional (3D) periodic nickel micro-structures with a periodicity of 4 μm and high number of structural periods were fabricated by electrodeposition. Macroporous silicon, consisting of periodic arrays of sine-wave ...
    • Advances in a baseline process towards high efficiency c-Si solar cell fabrication 

      Alcubilla González, Ramón; Ortega Villasclaras, Pablo Rafael; López, G.; Martín García, Isidro; Bermejo Broto, Sandra; Blanqué, Servane; García Molina, Francisco Miguel; Orpella García, Alberto; Voz Sánchez, Cristóbal (IEEE Press. Institute of Electrical and Electronics Engineers, 2009-02-11)
      Conference report
      Open Access
    • Boron diffused emitters passivated with Al2O3 films 

      Masmitjà Rusiñol, Gerard; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Calle Martín, Eric; García Molina, Francisco Miguel; Martín García, Isidro; Orpella García, Alberto; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
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      In this work we study the fabrication and characterization of boron diffused emitters using FZ c-Si(n) substrates. Emitter surface was passivated with Al2O3(25 nm thick) layers deposited by thermal atomic layer deposition ...
    • Células fotovoltaicas con un rendimiento del 20.5% 

      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 (Grupo Acorde Comunicación (GAC), 2011-03-01)
      Article
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      Un grupo de investigadores de la Universitat Politècnica de Catalunya (UPC) han desarrollado un proceso de fabricación que permite obtener rendimientos de conversión fotovoltaicos del 20,5%. Esto supone una mejora sustancial ...
    • 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 ...
    • Hypobaric chamber for wind sensor testing in Martian condictions 

      Kowalski, Lukasz; García Molina, Francisco Miguel (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
      Conference report
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      In this paper we will describe the installation of a low pressure stainless steel horizontal chamber to be used in preliminary tests of a Mars atmosphere wind sensor. It includes custom made additional QF ports, electric ...
    • Optimization of laser micro-doping processes for silicon photovoltaic applications 

      Colina Brito, Mónica Alejandra; Martín García, Isidro; Voz Sánchez, Cristóbal; Morales Vilches, Ana Belén; Ortega Villasclaras, Pablo Rafael; López, Gema; García Molina, Francisco Miguel; Orpella García, Alberto; Muñoz Martín, D.; Sánchez Aniorte, M. Isabel; Molpeceres Alvarez, Carlos; Alcubilla González, Ramón (2013)
      Conference lecture
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    • Optimization of laser processes for local rear contacting of passivated silicon solar cells 

      Colina Brito, Mónica Alejandra; Martín García, Isidro; Voz Sánchez, Cristóbal; Morales Vilches, Ana Belén; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; García Molina, Francisco Miguel; Alcubilla González, Ramón (2014-01-31)
      Article
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      Laser Firing Contact (LFC) and Laser Doping (LD) have become potential alternatives to the Al BSF thermal processing conventionally used in p-type c-Si solar cell rear contacts. Optimized LFC and LD processes allow, not ...
    • Template fabrication of 3D metallic microstructures by electrochemical etching and electroplanting 

      Hernández Díaz, David; Lange, Diego; Todorov Trifonov, Trifon; Garin Escriva, Moises; García Molina, Francisco Miguel; Rodríguez Martínez, Ángel; Alcubilla González, Ramón (2010)
      Conference report
      Open Access
      In this work, we show that macroporous silicon consisting of periodic arrays of etched pores is a feasible alternative for synthesis of 2D and 3d metallic microstructures due to its flexibility in the definition of complex ...