Now showing items 1-20 of 227

    • 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)
      Conference lecture
      Open Access
      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 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 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
      Open Access
      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)
      Conference report
      Restricted access - publisher's policy
      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
      Open Access
      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)
      Conference lecture
      Restricted access - publisher's policy
      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 ...
    • A new MPPT method for low-power solar energy harvesting 

      López Lapeña, Oscar; Penella López, María Teresa; Gasulla Forner, Manuel (2010-09)
      Article
      Open Access
      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. ...
    • 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
      Open Access
      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
      Open Access
      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)
      Master thesis
      Open Access
      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
      Open Access
      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 ...
    • Adjust of solar cell model parameters based in MATLAB 

      Silvestre Bergés, Santiago; Guasch Murillo, Daniel; Ortega Villasclaras, Pablo Rafael; Navarro, Nacho (M. C. Acero, M. Lozano - CNM-CSIC, 2003)
      Conference lecture
      Restricted access - publisher's policy
      In this work, a model parameter extractor of solar cells using Matlab is shown. The software, developed in Matlab environment, has been successfully applied to study internal characteristics of photovoltaic devices [1-2], ...
    • All-Nanoparticle SnO 2 /TiO 2 Electron-Transporting Layers Processed at Low Temperature for Efficient Thin-Film Perovskite Solar Cells 

      Martínez-Denegrí Sánchez, Guillermo; Colodrero Perez, Silvia; Kramarenko, Mariia; Martorell Pena, Jordi (2018-10-22)
      Article
      Open Access
      Solution-processed metal halide perovskite materials haverevealed outstanding optoelectronic features that make them uniquely suitedfor photovoltaic applications. Although a rapidprogresshasledtoperformances similar to ...
    • 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
      Open Access
      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
      Open Access
      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 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
      Open Access
      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 ...
    • An Indium Tin Oxide-Free Polymer Solar Cell on Flexible Glass 

      Formica, Nadia; Mantilla-Perez, Paola; Ghosh, Dhriti S.; Janner, David; Chen, Tong Lai; Huang, Minghuang; Garner, Sean; Martorell, Jordi; Pruneri, Valerio (2015-02-05)
      Article
      Open Access
      : 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 ...
    • 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
      Restricted access - publisher's policy
      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)
      Master thesis
      Open Access
    • Anàlisi de les problemàtiques presents en les plaques solars d'una instal·lació fotovoltaica 

      Andreu Sola, Albert (Universitat Politècnica de Catalunya, 2019-07-03)
      Bachelor thesis
      Restricted access - author's decision
      En aquest treball de fi de grau s’ha realitzat una anàlisi de les problemàtiques més importants que pot presentar una placa solar en una instal·lació fotovoltaica des d’una base teòrica, investigant quin és el nivell ...