Listar por autoría "215b4fbe-04e4-4506-8cbb-b32c73a06218"
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Colloidal PbS and PbSeS Quantum Dot Sensitized Solar Cells Prepared by Electrophoretic Deposition
Parsi Benehkohal, Nima; González Pedro, Victoria; Boix, Pablo P; Chavhan, Sudam; Tena-Zaera, Ramón; Demopoulos, George P.; Mora-Sero, Ivan American Chemical Society (2012)Here we report the developement of quantum dot sensitized solar cells (QDSCs) using colloidal PbS and PbSeS QDs and polysulfide electrolyte for high photocurrents. QDSCs have been prepared in a novel sensitizing way employing ... -
Electrodeposited NiO anode interlayers: Enhancement of the charge carrier selectivity in organic solar cells
Ripollés Sanchis, Teresa; Guerrero, Antonio; Azaceta, Eneko; Tena-Zaera, Ramón; Garcia-Belmonte, Germà Elsevier (2013-10)Nickel oxide (NiO) thin films prepared by cathodic electrodeposition exhibit superior electrical performace than PEDOT:PSS when used as anode interlayers of bulk-heterojunction solar cells. Devices incorporating 30 nm-thick ... -
Electrodeposition and impedance spectroscopy characterization of ZnO nanowire arrays
Lévy-Clément, Claude; Luo, Yan; Bisquert, Juan; Tena-Zaera, Ramón; Elias, Jamil; Mora-Sero, Ivan Wiley-Blackwell (2008)An overview of the electrodeposition of ZnO nanowire arrays from the reduction of dissolved molecular oxygen in zinc chloride solutions was reported. In spite of the internal structure of ZnO which favours the anisotropic ... -
Electron Transport Layer-Free Solar Cells Based on Perovskite? Fullerene Blend Films with Enhanced Performance and Stability
Pascual, Jorge; Kosta, Ivet; Ngo, Thi Tuyen; Chuvilin, Andrey; Cabanero, Germán; Grande, Hans J.; Barea, Eva M; Mora-Sero, Ivan; Delgado, Juan Luis; Tena-Zaera, Ramón Wiley (2016-08)The solution processing of pinhole-free methylammonium lead triiodide perovskite–C70 fullerene (MAPbI3:C70) blend films on fluorine-doped tin oxide (FTO)-coated glass substrates is presented. Based on this approach, a ... -
Fullerene-Based Materials as Hole-Transporting/Electron Blocking Layers. Applications in Perovskite Solar Cells
Völker, Sebastian F.; Vallés Pelarda, Marta; Pascual, Jorge; Collavini, Silvia; Ruipérez, F.; Zuccatti, Elisabetta; Hueso, Luis E.; Tena-Zaera, Ramón; Mora-Sero, Ivan; Delgado, Juan Luis Wiley (2018)Here we report for the first time an efficient fullerenebased compound, FU7, able to act as Hole-Transporting Material (HTM) and electron blocking contact. It has been applied on perovskite solar cells (PSCs), obtaining ... -
Influence of the Potassium Chloride Concentration on the Physical Properties of Electrodeposited ZnO Nanowire Arrays
Tena-Zaera, Ramón; Elias, Jamil; Lévy-Clément, Claude; Bekeny, Chegnui; Voss, Tobias; Mora-Sero, Ivan; Bisquert, Juan American Chemical Society (2008)The structural, electrical, and optical properties of zinc oxide nanowire arrays electrodeposited from the reduction of molecular oxygen in aqueous solutions containing zinc chloride and potassium chloride are studied as ... -
Localized versus delocalized states: Photoluminescence from electrochemically synthesized ZnO nanowires
Voss, Tobias; Bekeny, Chegnui; Gutowski, J.; Tena-Zaera, Ramón; Elias, Jamil; Lévy-Clément, Claude; Mora-Sero, Ivan; Bisquert, Juan American Institute of Physics (2009)We analyze the near-band-edge photoluminescence of electrochemically deposited ZnO nanowires and directly correlate the photoluminescence properties with the carrier concentration in the nanowires as determined from ... -
Modeling and characterization of extremely thin absorber (eta) solar cells based on ZnO nanowires
Mora-Sero, Ivan; Gimenez, Sixto; Fabregat-Santiago, Francisco; Azaceta, Eneko; Tena-Zaera, Ramón; Bisquert, Juan RSC Publishing (2011-03-15)Extremely thin absorber (eta)-solar cells based on ZnO nanowires sensitized with a thin layer of CdSe have been prepared, using CuSCN as hole transporting material. Samples with significantly different photovoltaic performance ... -
Organo-metal halide perovskite-based solar cells with CuSCN as the inorganic hole selective contact
Chavhan, Sudam; Miguel, Óscar; Grande, Hans-Jurgen; González Pedro, Victoria; S. Sánchez, Rafael; Barea, Eva M; Mora-Sero, Ivan; Tena-Zaera, Ramón Royal Society of Chemistry (2014-06)CuSCN is proposed as a cost-competitive hole selective contact for the emerging organo-metal halide perovskite-based solar cells. The CuSCN films have been deposited by a solution casting technique, which has proven to be ... -
PEDOT nanotube arrays as high performing counter electrodes for dye sensitized solar cells: study of the interactions among electrolytes and counter electrodes
Trevisan, Roberto; Döbbelin, Markus; Pérez Boix, Pablo; Barea, Eva M; Tena-Zaera, Ramón; Mora-Sero, Ivan; Bisquert, Juan Wiley (2011-10)PEDOT nanotube arrays present a better catalytic activity with I−/I3− redox than standard platinized counter electrodes used for dye sensitized solar cells exhibiting thereby a photoconversion efficiency as high as 8.3%. ... -
Spray-Pyrolyzed ZnO as Electron Selective Contact for Long-Term Stable Planar CH3NH3PbI3 Perovskite Solar Cells
Ngo, Thi Tuyen; Barea, Eva M; Tena-Zaera, Ramón; Mora-Sero, Ivan American Chemical Society (2018)Electron selective contacts (ESCs) play an important role in the performance of perovskite solar cells (PSCs). ZnO has attracted important attention as a good material for ESCs because of its matched energy levels with ... -
Ultrafast characterization of the electron injection from CdSe quantum dots and dye N719 co-sensitizers into TiO2 using sulfide based ionic liquid for enhanced long term stability
González Pedro, Victoria; Shen, Qing; Jovanovski, Vasko; Gimenez, Sixto; Tena-Zaera, Ramón; toyoda, taro; Mora-Sero, Ivan Elsevier (2013)Combination of inorganic quantum dots (QDs) and organic/metallorganic dyes as supracollectors nanocomposites could have an important role on the development of efficient photovoltaic devices based on the synergistic action ...