Ara es mostren els items 1-16 de 16

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

    Carrió, D.; Ortega Villasclaras, Pablo Rafael; López, Gema; López González, Juan Miguel; Martín García, Isidro; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    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)
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    Accés restringit per política de l'editorial
    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
    Accés restringit per política de l'editorial
    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 ...
  • 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)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    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 ...
  • 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)
    Text en actes de congrés
    Accés obert
    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 ...
  • El Transistor bipolar de heterounión : física, electrónica y microondas 

    López González, Juan Miguel (Edicions UPC, 2002)
    Llibre
    Accés restringit a la comunitat UPC
    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 ...
  • 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
    Accés obert
    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)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    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
    Accés obert
    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 ...
  • 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
    Accés obert
    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
    Accés obert
    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)
    Text en actes de congrés
    Accés obert
    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 ...
  • Rear contact pattern optimization based on 3D simulations for IBC solar cells with point-like doped contacts 

    Carrió Díaz, David; Ortega Villasclaras, Pablo Rafael; Martín García, Isidro; López Rodríguez, Gema; López González, Juan Miguel; Orpella García, Alberto; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (2014-09)
    Article
    Accés restringit per política de l'editorial
    In this work 3D simulations are used to study the impact of technological parameters on device performance of c-Si interdigitated back-contacted IBC solar cells with point-like doped contacts. In these cells, the highly-doped ...
  • Study of emitter width effects on beta(F), f(T) and f(max) of 200 GHz SiGe HBTs by DD, HD and EB device simulation 

    López González, Juan Miguel; Schröter, Michael (2009-09)
    Article
    Accés restringit per política de l'editorial
    This paper studies the effect of emitter width on the dc current gain, βF , and ac figures of merit, cut-off frequency, f T, and maximum oscillation frequency, f max, of realistic structures for 200 GHz SiGe heterojunction ...
  • Study of emitter width effects on BF, fT and fmax of 200 GHz SiGe HBTs by DD, HD and EB device simulation 

    Schröter, Michael; López González, Juan Miguel (2009-11)
    Article
    Accés restringit per política de l'editorial
    This paper studies the effect of emitter width on the dc current gain, βF , and ac figures of merit, cut-off frequency, f T, and maximum oscillation frequency, f max, of realistic structures for 200 GHz SiGe heterojunction ...
  • Universidad de California San Diego versus Universidad Politécnica de Cataluña 

    López González, Juan Miguel (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 1999)
    Article
    Accés obert