Ara es mostren els items 21-40 de 147

    • Compositional influence on the electrical performance of zinc indium tin oxide transparent thin-film transistors 

      Marsal Vinade, Albert; Carreras Seguí, Paz; Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal; Galindo Lorente, Sergi; Alcubilla González, Ramón; Bertomeu Balaguero, Joan; Antony, Aldrin (2014-03-31)
      Article
      Accés restringit per política de l'editorial
      In this work, zinc indium tin oxide layers with different compositions are used as the active layer of thin film transistors. This multicomponent transparent conductive oxide is gaining great interest due to its reduced ...
    • Confronting positions: para-vs. meta-functionalization in triindole for p-type air-stable OTFTs 

      Cuadrado Santolaria, Alba; Bujaldón Carbó, Roger; Fabregat Pallejà, Clara; Puigdollers i González, Joaquim; Velasco Castrillo, Maria Dolores (2024-05)
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      Accés obert
      The 5,10,15-trihexyl-10,15-dihydro-5H-diindolo[3,2-a:3',2'-c]carbazole core, namely triindole, is well-known for its prominent hole-transporting properties and air stability. The functionalization of this core is also ...
    • Copper phthalocyanine thin filma transistors with polymeric gate dielectric 

      Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal; Fonrodona, Marta; Cheylan, Stephanie; Stella, M; Andreu Batallé, Jordi; Vetter, Michael; Alcubilla González, Ramón (2006-06)
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      Accés restringit per política de l'editorial
      Copper phthalocyanine (CuPc) thin-film transistors have been fabricated using polymethyl methacrylate (PMMA) as gate dielectric. A bottom gate, staggered structure was selected to study the device performance. CuPc thin-films ...
    • Crystalline silicon solar cells beyond 20% efficiency 

      Alcubilla González, Ramón; García Molina, Francisco Miguel; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Orpella García, Alberto; Martín García, Isidro; Colina, M.; Voz Sánchez, Cristóbal; Bermejo Broto, Sandra; Puigdollers i González, Joaquim (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
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      —This paper describes a fabrication process to obtain high efficiency c-Si cells (> 20%) based on the Laser Fired Contact Passivated Emitter Rear Cell (LFC-PERC) concept. Photovoltaic efficiencies beyond 20% have ...
    • Crystalline Silicon surface passivation with amorphous SiCx:H films deposited by Plasma- Enhanced Chemical Vapor Deposition 

      Martín García, Isidro; Vetter, Michael; Garin Escriva, Moises; Orpella García, Alberto; Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Alcubilla González, Ramón (American Institute of Physics (AIP), 2005-12)
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      Accés restringit per política de l'editorial
      Surface-passivating properties of hydrogenated amorphous silicon carbide films(a-SiCx:H)(a-SiCx:H)deposited by plasma-enhanced chemical-vapor deposition on both pp- and nn-type crystalline silicon(c-Si)(c-Si) have been ...
    • Defect states assisted charge conduction in Au/MoO3¿x/n-Si Schottky barrier diode 

      Mahato, Somnath; Voz Sánchez, Cristóbal; Biswas, Debaleen; Puigdollers i González, Joaquim; Bhunia, Satyaban (Institute of Physics (IOP), 2018-12-07)
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      Accés obert
      Role of defect states of thermally evaporated molybdenum trioxide (MoO3-x) on electrical conductivity was investigated via low temperature current–voltage and capacitance–voltage measurements. To clarify the charge transport ...
    • Degradation study and calculation of density-of-states in PTCDI-C8 channel layer from the electrical characteristics of thin-film transistors 

      Shijeesh, Methattel R.; Vikas, L. S.; Jayaraj, M. K.; Puigdollers i González, Joaquim (American Institute of Physics (AIP), 2014-07-14)
      Article
      Accés restringit per política de l'editorial
      N-type organic thin film transistor (OTFT) with a top-contact structure was fabricated by thermal vapour deposition using N,N'-Dioctyl-3,4,9,10-perylenedicarboximide (PTCDI-C8) as an n-channel layer on Si/SiO2 substrate. ...
    • Density-of-states in pentacene from the electrical characteristics of thin-film transistors 

      Puigdollers i González, Joaquim; Marsal Vinade, Albert; Cheylan, Stephaie; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (2010-08)
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      Accés restringit per política de l'editorial
      In this work the density-of-states in the gap of pentacene is calculated from the electrical characteristics of thin-film transistors measured at different temperatures. The density-of-states after a thermal annealing in ...
    • Deoxyribonucleic acid-based electron selective contact for crystalline silicon solar cells 

      Tom, Thomas; Ros Costals, Eloi; Rovira, David; Lopez Vidrier, Julià; Asensi López, José Miguel; Ortega Villasclaras, Pablo Rafael; Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal; Bertomeu Balagueró, Joan (Wiley, 2023-02-10)
      Article
      Accés obert
      Development of carrier selective contacts for crystalline silicon solar cells has been recently of great interest toward the further expansion of silicon photovoltaics. The use of new electron and hole selective layers has ...
    • Does Sb2Se3 admit nonstoichiometric conditions? How modifying the overall se content affects the structural, optical, and optoelectronic properties of Sb2Se3 thin films 

      Caño Prades, Ivan; Vidal Fuentes, Pedro; Calvo Barrio, Lorenzo; Alcobé Olle, Xavier; Giraldo, Sergio; Sánchez González, Yudania; Jehl Li-Kao, Zacharie; Placidi, Marcel Jose; Puigdollers i González, Joaquim; Izquierdo Roca, Víctor; Saucedo Silva, Edgardo Ademar; Asensi López, José Miguel (2022-03-09)
      Article
      Accés obert
      Sb2Se3 is a quasi-one-dimensional (1D) semiconductor, which has shown great promise in photovoltaics. However, its performance is currently limited by a high Voc deficit. Therefore, it is necessary to explore new strategies ...
    • Effect of buffer layer on minority carrier lifetime and series resistance of bifacial heterojunction silicon solar cells analyzed by impedance spectroscopy 

      Garcia Belmonte, G; García Cañadas, J; Mora-Seró, I; Bisquert, J; Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Alcubilla González, Ramón (2006-07)
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      Accés restringit per política de l'editorial
      By combining information on solar cell layer structure and electrical response analyzed by impedance spectroscopy, relevant knowledge is obtained about photogenerated carriers recombination and extraction. The inclusion ...
    • Effect of permanent dipole layers in the electrical characteristics of electronic devices and solar cells 

      Ros Costals, Eloi; Pusay Villarroel, Benjamín Andrés; Almache Hernández, Rosa Estefanía; Ortega Villasclaras, Pablo Rafael; Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim (2019)
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    • Effect of the thickness of amorphous silicon carbide interlayer on the passivation of c-Ge surface by aluminium oxide films 

      Martín García, Isidro; López Rodríguez, Gema; Ortega Villasclaras, Pablo Rafael; Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim (Elsevier, 2022-07)
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      Accés restringit per política de l'editorial
      Surface passivation is of paramount importance in photovoltaic devices based on high-quality crystalline absorbers such as crystalline germanium (c-Ge). In this work, we report on the surface passivation of p-type c-Ge by ...
    • Electrical characterization of pentacene thin-film transistors with polymeric gate dielectric 

      Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal; Martín García, Isidro; Vetter, Michael; Orpella García, Alberto; Alcubilla González, Ramón (2004-11)
      Article
      Accés restringit per política de l'editorial
      Pentacene thin films obtained by thermal evaporation at room temperature have been incorporated as the active layer in bottom-gate thin-film transistors (TFTs). The dielectric was spin-cast polymethyl methacrylate (PMMA) ...
    • Electronic and structural characterisation of a tetrathiafulvalene compound as a potential candidate for ambipolar transport properties 

      Oton, Francisco; Pfattner, Raphael; Pavlica, Egon; Olivier, Yoann; Bratina, Gvido; Cornil, Jerome; Puigdollers i González, Joaquim; Alcubilla González, Ramón; Fontrodona, Xavier; Mas Torrent, Marta; Veciana Miró, Jaume; Rovira Angulo, Concepció (2011)
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      We report a joint experimental and theoretical study on the electronic structure and the solid-state organisation of bis(naphthoquinone)-tetrathiafulvalene (BNQ-TTF) as a promising ambipolar semiconductor. Accordingly, ...
    • Electronic properties of intrinsic and doped amorphous silicon carbide films 

      Vetter, Michael; Voz Sánchez, Cristóbal; Ferré Tomas, Rafel; Martín García, Isidro; Orpella García, Alberto; Puigdollers i González, Joaquim; Andreu Batallé, Jordi; Alcubilla González, Ramón (2006-07)
      Article
      Accés restringit per política de l'editorial
      Hydrogenated amorphous silicon carbide (a-SiCx : H) films have shown excellent surface passivation of crystalline silicon. With the aim of large area deposition of these films the influence of the rf plasma power was ...
    • Electronic transport in low temperature nanocrystalline silicon thin-film transistors obtained by hot-wire CVD 

      Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal; Orpella García, Alberto; Martín García, Isidro; Soler Vilamitjana, David; Fonrodona, Marta; Bertomeu Balaguero, Joan; Andreu Batallé, Jordi; Alcubilla González, Ramón (2002-04)
      Article
      Accés restringit per política de l'editorial
      Hydrogenated nanocrystalline silicon (nc-Si:H) obtained by hot-wire chemical vapour deposition (HWCVD) at low substrate temperature (150 °C) has been incorporated as the active layer in bottom-gate thin-film transistors ...
    • Enantiomer-selective molecular sensing using racemic nanoplasmonic arrays 

      García Guirado, José; Svedendahl, Mikael; Puigdollers i González, Joaquim; Quidant, Romain (2018-09-19)
      Article
      Accés obert
      Building blocks of life show well-defined chiral symmetry which has a direct influence on their properties and role in Nature. Chiral molecules are typically characterized by optical techniques such as circular dichroism ...
    • Enhanced chiral sensing with dielectric nanoresonators 

      García Guirado, José; Svedendahl, Mikael; Puigdollers i González, Joaquim; Quidant, Romain (2019-12-18)
      Article
      Accés obert
      Chiro-sensitive molecular detection is highly relevant as many biochemical compounds, the building blocks of life, are chiral. Optical chirality is conventionally detected through circular dichroism (CD) in the UV range, ...
    • Ephocell project: smart light collecting system for the efficiency enhancement of solar cells - ray trace modeling of system 

      Aubouy, Laurent; Gutiérrez-Tauste, D.; Della Pirriera, Monica; Noriega, G.; Di Lorenzo, M.L.; Avella, M.; Errico, M.E.; Gentile, G.; Kennedy, M.; Doran, J.; Norton, B.; Ahmed, H.; Baluschev, S.; Bistué Guardiola, J.; Hervera, F.; Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal; Daren, S.; Solomon-Tsvetkov, F.; Pashov, A. (2012)
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      PV cell efficiency is limited partly due to the spectral mismatch between the solar spectrum and the PV absorption properties. PV conversion efficiency is enhanced by external modulation of the incident irradiance, by means ...