Enviaments recents

  • Performance evaluation of a floating lidar buoy in nearshore conditions 

    Gutiérrez Antuñano, Miguel Ángel; Tiana Alsina, Jordi; Rocadenbosch Burillo, Francisco (2017-05-29)
    Article
    Accés restringit per política de l'editorial
    This work provides a signal-processing and statistical-error analysis methodology to assess key performance indicators for a floating Doppler wind lidar. The study introduces the raw-to-clean data processing chain, error ...
  • Simulation model to find the best comfort, energy and cost scenarios for building refurbishment 

    Fonseca Casas, Antoni; Ortiz, Joana Aina; Garrido Soriano, Núria; Fonseca Casas, Pau; Salom Tormo, Jaume (2017-05-12)
    Article
    Accés restringit per política de l'editorial
    This article proposes a methodology to assess building behaviour, whilst taking its life cycle into account. Understanding of the system can be obtained by combining well-known energy consumption calculation engines (TRNSYS) ...
  • Influence of amorphous silicon carbide intermediate layer in the back-contact structure of Cu2ZnSnSe4 solar cells 

    Colina Brito, Mónica Alejandra; Martín García, Isidro; Giraldo, Sergio; Sánchez González, Yudania; Kondrotas, Rokas; Oliva, Florian; Izquierdo Roca, Víctor; Pérez Rodríguez, Alejandro; Coll Valentí, Arnau; Alcubilla González, Ramón; Saucedo Silva, Edgardo Ademar (2016-08-01)
    Article
    Accés obert
    Cu2 ZnSn(S1-ySey )4 (CZTS) thin-film solar cells have been qualified as potential competitors of the more established CIGS ones. One of the more important handicaps of CZTS solar cells is the open-circuit voltage deficit. ...
  • Mn3O4@CoMn2O4-CoxOy nanoparticles : partial cation exchange synthesis and electrocatalytic properties toward the oxygen reduction and evolution reactions 

    Luo, Zhishan; Irtem, Erdem; Ibañez, María; Nafria Soler, Raquel; Martí Sanchez, Sara; Genç, Aziz; de la Mata, María; Liu, Yu; Cadavid, Doris; Llorca Piqué, Jordi; Arbiol, Jordi; Andreu, Teresa; Morante Lleonart, Joan Ramon; Cabot Codina, Andreu (2016-07-13)
    Article
    Accés obert
    Mn3O4@CoMn2O4 nanoparticles (NPs) were produced at low temperature and ambient atmosphere using a one -pot two-step synthesis protocol involving the cation exchange of Mn by Co in preformed Mn3O4 NPs. Selecting the proper ...
  • Vibrational spectra and lattice thermal conductivity of kesterite-structured Cu2ZnSnS4 and Cu2ZnSnSe4 

    Skelton, Jonathan M.; Jackson, Adam J.; Dimitrievska, Mirjana; Wallace, Suzanne K.; Walsh, Aron (American Institute of Physics Inc., 2015-04-07)
    Article
    Accés obert
    Cu2ZnSnS4 (CZTS) is a promising material for photovoltaic and thermoelectric applications. Issues with quaternary semiconductors include chemical disorder (e.g., Cu-Zn antisites) and disproportionation into secondary phases ...
  • Polarized Raman scattering study of kesterite type Cu2 ZnSnS4 single crystals 

    Guc, Maxim; Levcenko, Sergiu; Bodnar, Ivan V.; Izquierdo-Roca, Victor; Fontane, Xavier; Volkova, Larisa V.; Arushanov, Ernest; Perez-Rodriguez, Alejandro (Nature Publishing Group, 2016-01-18)
    Article
    Accés obert
    A non-destructive Raman spectroscopy has been widely used as a complimentary method to X-ray diffraction characterization of Cu2 ZnSnS4 (CZTS) thin films, yet our knowledge of the Raman active fundamental modes in this ...
  • Raman scattering quantitative assessment of the anion composition ratio in Zn(O,S) layers for Cd-free chalcogenide-based solar cells 

    Guc, M.; Neuschitzer, M.; Hariskos, D.; Bauer, A.; Witte, W.; Hempel, W.; Calvo-Barrio, L.; Pistor, P.; Perez-Rodriguez, A.; Izquierdo-Roca, Victor (Royal Society of Chemistry, 2016)
    Accés obert
    This work reports the use of Raman scattering for the chemical characterization of Zn(O,S) layers that are being developed as a Cd-free alternative for the buffer layer in advanced chalcogenide solar cells. The nanometric ...
  • Novel Approaches towards Highly Selective Self-Powered Gas Sensors 

    Hoffmann, M.W.G.; Casals, O.; Gad, A.E.; Mayrhofer, L.; Fàbrega, C.; Caccamo, L.; Hernandez-Ramirez, F.; Lilienkamp, G.; Daum, W.; Moseler, M.; Shen, H.; Waag, A.; Prades, J.D. (Elsevier Ltd, 2015)
    Article
    Accés obert
    The prevailing design approaches of semiconductor gas sensors struggle to overcome most of their current limitations such as poor selectivity, and high power consumption. Herein, a new sensing concept based on devices that ...
  • Long-lived excitons in GaN/AlN nanowire heterostructures 

    Beeler, M.; Lim, C.B.; Hille, P.; Bleuse, J.; Schormann, J.; De la Mata, M.; Arbiol, J.; Eickhoff, M.; Monroy, E. (American Physical Society, 2015-05-27)
    Accés restringit per política de l'editorial
    GaN/AlN nanowire heterostructures can display photoluminescence (PL) decay times on the order of microseconds that persist up to room temperature. Doping the GaN nanodisk insertions with Ge can reduce these PL decay times ...
  • Tuning the high-temperature properties of Pr2NiO4+δ by simultaneous Pr- and Ni-cation replacement 

    Istomin, S. Ya.; Karakulina, O. M.; Rozova, M.G.; Kazakov, S.M.; Gippius, A.A.; Antipov, E.V.; Bobrikov, I.A.; Balagurov, A.M.; Tsirlin, A.A.; Michau, A.; Biendicho, J.J.; Svensson, G. (2016)
    Article
    Accés obert
    Novel Pr2-xSrxNi1-xCoxO4±δ (x = 0.25; 0.5; 0.75) oxides with the tetragonal K2NiF4-type structure have been prepared. Room-temperature neutron powder diffraction (NPD) study of x = 0.25 and 0.75 phases together with ...

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