Listar por autoría "fbde16a6-909b-4e56-9b78-0f44872929a9"

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    • closedAccess   Analysis of the Origin of Open Circuit Voltage in Dye Solar Cells 

      Raga, Sonia R.; Barea, Eva M; Fabregat-Santiago, Francisco American Chemical Society (2012)
      Changes in the composition of the electrolyte are known to affect the parameters that determine the performance of dye solar cells. This paper describes a robust method for the analysis of the photovoltage in dye solar ...

    • openAccess   Design and characterization of alkoxy-wrapped push–pull porphyrins for dye-sensitized solar cells 

      Ripollés Sanchis, Teresa; Guo, Bo-Cheng; Wu, Hui-Ping; Pan, Tsung-Yu; Lee, Hsuan-Wei; Raga, Sonia R.; Fabregat-Santiago, Francisco; Bisquert, Juan; Yeh, Chen-Yu; Wei-Guang Diau, Eric The Royal Society of Chemistry (2012-03-09)
      Three alkoxy-wrapped push–pull porphyrins were designed and synthesized for dye-sensitized solar cell (DSSC) applications. Spectral, electrochemical, photovoltaic and electrochemical impedance spectroscopy properties of ...

    • openAccess   Enhanced diffusion through porous nanoparticle optical multilayers 

      López López, Carmen; Colodrero, Silvia; Raga, Sonia R.; Lindström, Henrik; Fabregat-Santiago, Francisco; Bisquert, Juan; Míguez, Hernán Royal Society of Chemistry (2012)
      Herein we demonstrate improved mass transport through nano- particle one-dimensional photonic crystals of enhanced porosity. Analysis is made by impedance spectroscopy using iodine and ionic liquid based electrolytes and ...

    • openAccess   Molecular Electronic Coupling Controls Charge Recombination Kinetics in Organic Solar Cells of Low Bandgap Diketopyrrolopyrrole, Carbazole, and Thiophene Polymers 

      Ripollés Sanchis, Teresa; Raga, Sonia R.; Guerrero, Antonio; Welker, Matthias; Turbiez, Mathieu; Bisquert, Juan; Garcia-Belmonte, Germà American Chemical Society (2013)
      Low-bandgap diketopyrrolopyrrole- and carbazole-based polymer bulk-heterojunction, solar cells exhibit much faster charge carrier recombination kinetics than that encountered for less-recombining poly(3-hexylthiophene). ...

    • closedAccess   Temperature effects in dye-sensitized solar cells 

      Raga, Sonia R.; Fabregat-Santiago, Francisco Royal Society of Chemistry (2013)
      In the standard solar cell technologies such as crystalline silicon and cadmium telluride, increments of temperature in the cell produce large variations in the energy conversion efficiency, which decreases at a constant ...