Ara es mostren els items 1-20 de 189

  • 2D/3D Simulations of black-silicon interdigitated back-contacted c-si(n) solar cells 

    Calle Martín, Eric; Carrió, David; Ortega Villasclaras, Pablo Rafael; von Gastrow, Guillaume; Savin, Hele; Martín García, Isidro; Alcubilla González, Ramón (WIP Renewable Energies, 2016)
    Comunicació de congrés
    Accés obert
    Black silicon (b-Si) reduces drastically light reflectance in the front side of c-Si solar cells to values near zero for the whole absorbed solar spectrum. In this work, we apply 2D and 3D simulations to explore the ...
  • 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 simulations of interdigitated back-contacted crystalline silicon solar cells on thin substrates 

    Jin, Chen; Martín García, Isidro; Ortega Villasclaras, Pablo Rafael; Calle Martín, Eric; Alcubilla González, Ramón (2018-06-01)
    Article
    Accés restringit per política de l'editorial
    Interdigitated back contact technology is a promising candidate to be applied to thin crystalline silicon solar cells because of its simpler one-side interconnection while allowing a more flexible front surface treatment. ...
  • 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)
    Text en actes de congrés
    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 ...
  • 4-terminal tandem photovoltaic cell using two layers of PTB7:PC71BM for optimal light absorption 

    Mantilla Perez, Paola; Martinez Otero, Alberto; Romero Gómez, Pablo; Martorell Pena, Jordi (2015-08-26)
    Article
    Accés obert
    A 4-terminal architecture is proposed in which two thin active layers (<100 nm) of PTB7:PC71BM are deposited on a two-sided ITO covered glass substrate. By modeling the electric field distribution inside the multilayer ...
  • A critical analysis on the role of back surface passivation for a-Si/c-Si heterojunction solar cells 

    Chatterji, N; Khatavkar, Sanchit; Voz Sánchez, Cristóbal; Morales Vilches, Ana Belén; Puigdollers i González, Joaquim; Mohan Arora, Brij; Antony, Aldrin; Naip, Praadep R (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    Back surface passivation is a well-known method to reduce carrier recombination and hence improves the efficiency of crystalline silicon solar cells. In this manuscript, we critically analyze the role of this process for ...
  • All-Nanoparticle SnO 2 /TiO 2 Electron-Transporting Layers Processed at Low Temperature for Efficient Thin-Film Perovskite Solar Cells 

    Martínez-Denegri Sánchez, Guillermo; Colodrero Perez, Silvia; Kramarenko, Mariia; Martorell Pena, Jordi (2018-10-22)
    Article
    Accés restringit per política de l'editorial
    Solution-processed metal halide perovskite materials haverevealed outstanding optoelectronic features that make them uniquely suitedfor photovoltaic applications. Although a rapidprogresshasledtoperformances similar to ...
  • Análisis de células solares de alto rendimiento mediante espectroscopía de impedancias 

    Del Castillo Castelo, Adrián (Universitat Politècnica de Catalunya, 2016-07-11)
    Treball Final de Grau
    Accés obert
    This project aims to make measurements on solar cell high yield by a novel technique based on obtaining impudencias measured by spectroscopy using an impedance analyzed . After making measurements using this technique it ...
  • Analysis of conduction mechanisms in annealed n-Si1-xCx:H/p-crystalline Si heterojunction diodes for different doping concentrations 

    Marsal, L F; Pallares, J; Correig, X; Orpella García, Alberto; Bardés Llorensí, Daniel; Alcubilla González, Ramón (American Institute of Physics (AIP), 1999-01)
    Article
    Accés restringit per política de l'editorial
    We fabricated and characterized annealed n-type amorphous Si1-xCx on p-type crystalline silicon heterojunction diodes with three different base doping concentrations: NA~1016,¿1018, and 1020¿cm-3. The conduction mechanisms ...
  • Analysis of degradation and evolution of model parameters of a-Si/μ-Si PV modules 

    Abaslioglu, Alif (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2016-01)
    Projecte Final de Màster Oficial
    Accés obert
  • Analysis of the dynamic short-circuit resistance in organic bulk-heterojunction solar cells: relation to the charge carrier collection efficiency 

    Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Asensi López, José Miguel; Galindo Lorente, Sergi; Cheylan, S.; Pacios, R.; Ortega Villasclaras, Pablo Rafael; Alcubilla González, Ramón (2013-06)
    Article
    Accés restringit per política de l'editorial
    This work studies the charge carrier collection efficiency in organic bulk-heterojunction solar cells based on polymer:fullerene blends. An equivalent circuit with a specific recombination term is proposed to describe the ...
  • A new MPPT method for low-power solar energy harvesting 

    López Lapeña, Oscar; Penella López, María Teresa; Gasulla Forner, Manuel (2010-09)
    Article
    Accés obert
    This paper describes a new maximum-power-pointtracking (MPPT) method focused on low-power (< 1 W) photovoltaic (PV) panels. The static and dynamic performance is theoretically analyzed, and design criteria are provided. ...
  • An extremely thin and robust interconnecting layer providing 76% fill factor in a tandem polymer solar cell architecture 

    Martinez Otero, Alberto; Liu, Quansheng; Mantilla Perez, Paola; Montes Bajo, Miguel; Martorell Pena, Jordi (Royal Society of Chemistry, 2015-04-17)
    Article
    Accés obert
    We report a thin and robust interconnecting layer (ICL) for polymer tandem solar cells. This ICL shows low absorption, good electrical contacts, large work function contrast and robustness. Its use yields tandem cells with ...
  • An extremely thin and robust interconnecting layer providing 76% fill factor in a tandem polymer solar cell architecture 

    Martínez-Otero, Alberto; Liu, Quan; Mantilla-Perez, Paola; Montes Bajo, Miguel; Martorell Pena, Jordi (Royal Society of Chemistry, 2015-04-17)
    Article
    Accés obert
    We report a thin and robust interconnecting layer (ICL) for polymer tandem solar cells. This ICL shows low absorption, good electrical contacts, large work function contrast and robustness. Its use yields tandem cells with ...
  • An IBC solar cell for the UPC CubeSat-1 mission 

    Ortega Villasclaras, Pablo Rafael; Jové Casulleras, Roger; Pedret, A; Gonzalvez, G.; López Rodríguez, Gema; Martín García, Isidro; Domínguez Pumar, Manuel; Alcubilla González, Ramón; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In this work the fabrication and electrical characterization of interdigitated back contact IBC solar cells is shown. These solar cells have been specifically designed for a CubeSat based satellite under developement at ...
  • An indium tin oxide-free polymer solar cell on flexible glass 

    Formica, Nadia; Mantilla Perez, Paola; Ghosh, Dhriti Sundar; Janner, Davide; Chen, T. L.; Huang, Minghuang; Garner, Sean; Martorell Pena, Jordi; Pruneri, Valerio (2015-02-05)
    Article
    Accés obert
    Future optoelectronic devices and their low-cost roll-to-roll production require mechanically flexible transparent electrodes (TEs) and substrate materials. Indium tin oxide (ITO) is the most widely used TE because of its ...
  • A prototype reactor for highly selective solar-driven CO2 reduction to synthesis gas using nanosized earth-abundant catalysts and silicon photovoltaics 

    Urbain, Félix; Tang, Pengyi; Carretero González, Nina Maga; Andreu, Teresa; Gerling Sarabia, Luis Guillermo; Voz Sánchez, Cristóbal; Arbiol Cobos, Jordi; Morante Lleonart, Joan Ramon (2017-10)
    Article
    Accés obert
    The conversion of carbon dioxide (CO2) into value-added chemicals and fuels, preferably using renewable energy and earth-abundant materials, is considered a key priority for future energy research. In this work, a bias-free ...
  • A simple and efficient MPPT method for low-power PV cells 

    Penella López, María Teresa; Gasulla Forner, Manuel (2014-01-01)
    Article
    Accés obert
    Small-size PV cells have been used to power sensor nodes. These devices present limited computing resources and so low complexity methods have been used in order to extract the maximum power from the PV cells. Among them, ...
  • A study of the degradation of organic solar cells 

    Azzouzi, Mohammed (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2016-05-20)
    Projecte Final de Màster Oficial
    Accés obert
    The field of small molecule solar cells has incredibly developed during the last decade. In fact, their efficiency increased from 3% in 2005 to 13% in 2016. However, they still face a major problem of stability: these cells ...
  • A two-resonance tapping cavity for an optimal light trapping in thin-film solar cells 

    Liu, Quan; Romero Gómez, Pablo; Mantilla Perez, Paola; Colodrero, Silvia; Toudert, Johann; Martorell Pena, Jordi (2017-09-20)
    Article
    Accés obert
    An optimal photon absorption in thin film photovoltaic technologies can only be reached by effectively trapping the light in the absorber layer provided a considerable portion of the photons is rejected or scattered out ...