Now showing items 1-9 of 9

    • 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 ...
    • 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 ...
    • Enhanced light harvesting in semitransparent organic solar cells using an optical metal cavity configuration 

      Pastorelli, Francesco; Romero Gómez, Pablo; Betancur Lopera, Rafael; Martinez Otero, Alberto; Mantilla Perez, Paola; Bonod, Nicolas; Martorell Pena, Jordi (2015-01-21)
      Article
      Open Access
      An optical metal cavity configuration is used to trap near infrared light in a semitransparent organic solar cell. The efficiency for such cell, which has a higher than 20% transparency in the visible region, is equal to ...
    • Enhanced stability in semi-transparent PTB7/PC71BM photovoltaic cells 

      Romero Gómez, Pablo; Betancur Lopera, Rafael; Martinez Otero, Alberto; Elias Pera, Xavier; Mariano, Marina; Romero, Beatriz; Arredondo, Belen; Vergaz, Ricardo; Martorell Pena, Jordi (2015-06-01)
      Article
      Open Access
      We studied the performance over time of opaque and semi-transparent PTB7:PC71BM bulk heterojunction solar cells. For unsealed inverted configuration cells we observe that when the isolation from the environment is improved, ...
    • High-performance polymer solar cells using an optically enhanced architecture 

      Martinez Otero, Alberto; Elías Castells, Xavier; Betancur, Rafael; Martorell Pena, Jordi (2013-01-31)
      Article
      Restricted access - publisher's policy
    • Neutral water splitting catalysis with a high FF triple junction polymer cell 

      Elias Pera, Xavier; Liu, Quan; Gimbert-Surinach, Carolina; Matheu, Roc; Mantilla Perez, Paola; Martinez Otero, Alberto; Martorell Pena, Jordi (2016-04-15)
      Article
      Open Access
      We report a photovoltaics-electrochemical (PV-EC) assembly based on a compact and easily processable triple homojunction polymer cell with high fill factor (76%), optimized conversion efficiencies up to 8.7%, and enough ...
    • Semi-transparent polymer solar cells 

      Romero Gómez, Pablo; Pastorelli, Francesco; Mantilla Perez, Paola; Mariano, Marina; Martinez Otero, Alberto; Elias Pera, Xavier; Betancur Lopera, Rafael; Martorell Pena, Jordi (2015-02-16)
      Article
      Open Access
      Over the last three decades, progress in the organic photovoltaic field has resulted in some device features which make organic cells applicable in electricity generation configurations where the standard silicon-based ...
    • Transparent polymer solar cells emplotings a layered light-trapping architecture 

      Betancur, Rafael; Romero Gómez, Pablo; Martinez Otero, Alberto; Elias Pera, Xavier; Maymó Camós, Marc; Martorell Pena, Jordi (2013-10)
      Article
      Restricted access - publisher's policy
      Organic solar cells have unique properties that make them very attractive as a renewable energy source. Of particular interest are semi-transparent cells, which have the potential to be integrated into building fac¸ades ...
    • Ultrathin oxidized Ti to increase stability and smoothness of Al doped ZnO transparent conductors for high efficiency indium-free polymer solar cells 

      Formica, Nadia; Ghosh, Dhriti Sundar; Martinez Otero, Alberto; Chen, T. L.; Martorell Pena, Jordi; Pruneri, Valerio (2013-10-28)
      Article
      Open Access
      We propose a transparent electrode consisting of an aluminum doped zinc oxide (AZO) layer capped with an ultrathin oxidized Ti film for indium-free bulk-heterojunction polymer solar cells (PSCs). The oxidized Ti increases ...