Now showing items 1-20 of 24

    • 3D simulations of back-contact back-junction c-Si(P) solar cells with doped point contacts 

      Carrió Díaz, David; Ortega Villasclaras, Pablo Rafael; López, Gema; López González, Juan Miguel; Martín García, Isidro; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (2013)
      Conference report
      Restricted access - publisher's policy
      The back-contact back-junction BC-BJ solar cell concept is a promising photovoltaic structure for both laboratory and industrial c-Si solar cells. High efficiency devices based on this concept have been reported in the ...
    • 3D TCAD modeling of laser processed c-Si solar cells 

      López González, Juan Miguel; Martín García, Isidro; Ortega Villasclaras, Pablo Rafael; Orpella García, Alberto; Alcubilla González, Ramón (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
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      This paper presents an 3D TCAD model of crystalline Silicon (c-Si) solar cells. Physical parameters used in the model are discussed. Simulation results are compared to experimental current-voltage curves and solar cell ...
    • Analytical modelling of 200 GHz SiGe HBT high-frequency noise parameters 

      López González, Juan Miguel (2010-10-01)
      Article
      Restricted access - publisher's policy
      This paper presents an analytical model for high-frequency noise of high-speed SiGe heterojunction bipolar transistors (HBTs). The model allows circuit level noise parameters to be obtained: the minimum noise figure, the ...
    • 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 ...
    • DopLaCell: a new c-Si solar cell based on laser processing of dielectric films 

      Martín García, Isidro; López González, Juan Miguel; Colina Brito, Mónica Alejandra; Orpella García, Alberto; Alcubilla González, Ramón (2013)
      Conference report
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      In this paper we introduce a new crystalline silicon (c-Si) solar cell fabrication technology based on the laser processing of dielectric films to create all the highly-doped regions. We call it DopLaCell (Doped by Laser ...
    • El transistor bipolar de heterounión : física, electrónica y microondas 

      López González, Juan Miguel (Edicions UPC, 2002)
      Book
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      El presente libro intenta desarrollar de manera ordenada la teoría física, la teoría electrónica y la teoría de las microondas del transistor bipolar de heterounión. Se explican con detalle los fundamentos y procedimientos ...
    • Examen Final 

      Bermejo Broto, Sandra; Fernández Chimeno, Mireya; Guede Fernández, Federico; Martín García, Isidro; López González, Juan Miguel; Ortega Villasclaras, Pablo Rafael; Puigdollers i González, Joaquim; Rodríguez Martínez, Ángel; Vargas Drechsler, Manuel; Voz Sánchez, Cristóbal (Universitat Politècnica de Catalunya, 2019-01-15)
      Exam
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    • Examen Final 

      Fernández, Mireia; López González, Juan Miguel (Universitat Politècnica de Catalunya, 2014-06-16)
      Exam
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    • 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 

      López González, Juan Miguel; Prat Viñas, Lluís; Voz Sánchez, Cristóbal (Universitat Politècnica de Catalunya, 2013-06-14)
      Exam
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    • Examen Final 

      Chávez Domínguez, Juan Antonio; García González, Miguel Ángel; Guede Fernández, Federico; López González, Juan Miguel; Ortega Villasclaras, Pablo Rafael; Pol Fernández, Clemente (Universitat Politècnica de Catalunya, 2020-06-12)
      Exam
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    • Examen Laboratori 

      Chávez Domínguez, Juan Antonio; López González, Juan Miguel; Navarro Pons, Marc; Orpella García, Alberto; Pol Fernández, Clemente (Universitat Politècnica de Catalunya, 2021-06-01)
      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 ...
    • Fast time-to-market with via-configurable transistor array regular fabric: A delay-locked loop design case study 

      González Colás, Antonio María; Pons Solé, Marc; Barajas Ojeda, Enrique; Mateo Peña, Diego; López González, Juan Miguel; Moll Echeto, Francisco de Borja; Rubio Sola, Jose Antonio; Abella Ferrer, Jaume; Vera Rivera, Francisco Javier (IEEE Computer Society Publications, 2011)
      Conference lecture
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      Time-to-market is a critical issue for nowadays integrated circuits manufacturers. In this paper the Via-Configurable Transistor Array regular layout fabric (VCTA), which aims to minimize the time-to-market and its associated ...
    • Front contact optimization of industrial scale CIGS solar cells for low solar concentration using 2D physical modeling 

      Delgado Sánchez, José María; López González, Juan Miguel; Orpella García, Alberto; Sánchez-Cortezón, Emilio; Alba, Maria D.; López López, Carmen; Alcubilla González, Ramón (2017-02-01)
      Article
      Open Access
      Cu(In,Ga)Se2 (CIGS) technology is one of the best absorber materials with record efficiencies among photovoltaic thin-film technologies (22.3% at lab scale and 16% at large commercial module). Although research on this ...
    • Influence of wavelength and pulse duration on the selective laser ablation of WOx, VOx and MoOx thin films 

      Muñoz García, Cristina; Canteli, David; Lauzurica, Sara; Morales, Miguel; Molpeceres Alvarez, Carlos; Ros Costals, Eloi; Ortega Villasclaras, Pablo Rafael; López González, Juan Miguel; Voz Sánchez, Cristóbal (Elsevier, 2022-02-01)
      Article
      Open Access
      In this paper, we present a study of the laser scribing of WOx, VOx, and MoOx films, deposited onto crystalline silicon, with three different wavelengths (355 nm, 532 nm, and 1064 nm) and in two temporal regimes in pulse ...
    • Microscale characterization of surface recombination at the vicinity of laser-processed regions in c-Si solar cells 

      Roige, A; Osso, J.O; Martín García, Isidro; Voz Sánchez, Cristóbal; Ortega Villasclaras, Pablo Rafael; López González, Juan Miguel; Alcubilla González, Ramón; Vega, L. F (2016-03-01)
      Article
      Open Access
      Laser firing processes have emerged as a technologically feasible approach for the fabrication of local point contacts or local doped regions in advanced high-efficiency crystalline-Si (c-Si) solar cells. In this work, we ...
    • Numerical simulations of rear point-contacted solar cells pn 2.2 Wcm p-type c-Si substrates 

      López González, Juan Miguel; Martín García, Isidro; Ortega Villasclaras, Pablo Rafael; Orpella García, Alberto; Alcubilla González, Ramón (2013-07)
      Article
      Open Access
      Rear surface of high-efficiency crystalline silicon solar cells is based on a combination of dielectric passivation and point-like contacts. In this work, we develop a 3D model for these devices based on 2.2 Ωcm p-type ...
    • Plataforma hardware universal para prácticas sobre sistemas electrónicos analógico-digitales avanzados en régimen de semipresencialidad 

      Gago Barrio, Javier; González Díez, David; López González, Juan Miguel (2006-02)
      Conference report
      Open Access
      Aquest projecte tracta d’implementar una metodologia per fer pràctiques d’Electrònica Analògica amb circuits avançats que es puguin configurar fàcilment dins d’una placa hardware universal. Aquesta metodologia es basa en ...