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Ara es mostren els items 90-109 de 150

    • Main properties of Al2O3 thin films deposited by magnetron sputtering of an Al2O3 ceramic target at different radio-frequency power and argon pressure and their passivation effect on p-type c-Si wafers 

      García Valenzuela, J. A.; Rivera, R.; Morales Vilches, Ana Belén; Gerling Sarabia, Luis Guillermo; Caballero Lorenzo, Álvaro; Asensi López, José Miguel; Voz Sánchez, Cristóbal; Bertomeu Balagueró, Joan; Andreu Batallé, Jordi (2016-11-30)
      Article
      Accés obert
      In this work, 50-nm thick Al2O3 thin films were deposited at room temperature by magnetron sputtering from an Al2O3 ceramic target at different RF power and argon pressure values. The sputtering technique could be preferred ...

    • Microcrystalline silicon thin film transistors obtained by hot-wire CVD 

      Puigdollers i González, Joaquim; Dosev, D; Orpella García, Alberto; Voz Sánchez, Cristóbal; Peiro, D; Bertomeu Balaguero, Joan; Marsal, L F; Pallarés, J; Andreu Batallé, Jordi; Alcubilla González, Ramón (1999-12)
      Article
      Accés restringit per política de l'editorial
      Polysilicon thin film transistors (TFT) are of great interest in the field of large area microelectronics, especially because of their application as active elements in flat panel displays. Different deposition techniques ...

    • Microscale characterization of surface recombination at the vicinity of laser-processed regions in c-Si solar cells 

      Roige, A; Osso, J.O; Martín García, Isidro; Voz Sánchez, Cristóbal; Ortega Villasclaras, Pablo Rafael; López González, Juan Miguel; Alcubilla González, Ramón; Vega, L. F (2016-03-01)
      Article
      Accés obert
      Laser firing processes have emerged as a technologically feasible approach for the fabrication of local point contacts or local doped regions in advanced high-efficiency crystalline-Si (c-Si) solar cells. In this work, we ...

    • Model for the charge carrier collection in organic small-molecule solar cells 

      Galindo Lorente, Sergi; Ahmadpour Sayyar, Mehrad; Voz Sánchez, Cristóbal; Asensi, J.M.; Puigdollers i González, Joaquim; Alcubilla González, Ramón (2013)
      Comunicació de congrés
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    • Multicrystalline silicon thin-film solar cells based on vanadium oxide heterojunction and laser-doped contacts 

      Martín García, Isidro; López Rodríguez, Gema; Plentz, Jonathan; Jin, Chen; Ortega Villasclaras, Pablo Rafael; Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Gawlik, Annet; Jia, Guobin; Andrä, Gudrun (2019-10)
      Article
      Accés obert
      Liquid phase crystallized (LPC) silicon thin films on glass substrates are a feasible alternative to conventional crystalline silicon (c-Si) wafers for solar cells. Due to substrate limitation, a low-temperature technology ...

    • N-type emitters passivation through antireflective phosphorus doped a-SiCxNy:H(n) stacks 

      Orpella García, Alberto; Blanqué, Servane; Roiati, V.; Martín García, Isidro; Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Alcubilla González, Ramón (IEEE Press. Institute of Electrical and Electronics Engineers, 2009-02-11)
      Text en actes de congrés
      Accés obert
      This paper studies the passivation of industrially textured deep silicon emitters using amorphous silicon carbonitride layers in stack configuration, deposited by plasma enhanced chemical vapor deposition. With this ...

    • N-type PTCDI¿C13H27 thin-film transistors deposited at different substrate temperature 

      Puigdollers i González, Joaquim; Pirriera, Della M; Marsal Vinade, Albert; Orpella García, Alberto; Cheylan, Stephanie; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (2009-10)
      Article
      Accés restringit per política de l'editorial
      N-type organic thin-film transistors based on N,N'-ditridecylperylene-3,4,9,10-tetracarboxylic diimide have been fabricated by thermal evaporation at different substrate temperatures. The best device was obtained at 120 ...

    • Near 5% DMSO is the best: a structural investigation of PEDOT: PSS thin films with strong emphasis on surface and interface for hybrid solar cell 

      Mahato, Somnath; Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal; Mukhopadhyay, Mala; Mukherjee, Manabendra; Hazra, Satyajit (2019-09-10)
      Article
      Accés obert
      Effect of dimethyl sulfoxide (DMSO) doping on poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) thin films have been optimized for obtaining better hole transport layer in hybrid solar cell. The correlation ...

    • New laser-based approaches to improve the passivation and rear contact quality in high efficiency crystalline silicon solar cells 

      Molpeceres Alvarez, Carlos; Colina Brito, Mónica Alejandra; Muñoz Martín, D.; Martín García, Isidro; Ortega Villasclaras, Pablo Rafael; Sánchez Aniorte, M. Isabel; Morales, Miguel; Lauzurica, Sara; García Ballesteros, Juan J.; Voz Sánchez, Cristóbal; López Rodríguez, Gema; Alcubilla González, Ramón (2013)
      Text en actes de congrés
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    • On the observation of electron-hole liquid luminescence under low excitation in Al2O3-passivated c-Si wafers 

      Roige, A; Fernandez Tejero, Javier; Osso, J.O; Goni, A.R; Martín García, Isidro; Voz Sánchez, Cristóbal; Alcubilla González, Ramón; Vega, L. F (2014-11-01)
      Article
      Accés restringit per política de l'editorial
      We report on low-temperature photoluminescence (PL) from aluminum oxide (Al2O3)-passivated c-Si wafers, which surprisingly exhibits clear signature of the formation of the so-called electron-hole liquid (EHL), despite the ...

    • Optimization of laser doping processes for the creation of p+ regions from solid dopant sources 

      Colina Brito, Mónica Alejandra; Martín García, Isidro; Voz Sánchez, Cristóbal; Morales Vilches, Ana Belén; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Orpella García, Alberto; Alcubilla González, Ramón; Sanchez Aniorte, Maria Isabel; Molpeceres Alvarez, Carlos (2012)
      Text en actes de congrés
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    • Optimization of laser micro-doping processes for silicon photovoltaic applications 

      Colina Brito, Mónica Alejandra; Martín García, Isidro; Voz Sánchez, Cristóbal; Morales Vilches, Ana Belén; Ortega Villasclaras, Pablo Rafael; López, Gema; García Molina, Francisco Miguel; Orpella García, Alberto; Muñoz Martín, D.; Sánchez Aniorte, M. Isabel; Molpeceres Alvarez, Carlos; Alcubilla González, Ramón (2013)
      Comunicació de congrés
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    • Optimization of laser processes for local rear contacting of passivated silicon solar cells 

      Colina Brito, Mónica Alejandra; Martín García, Isidro; Voz Sánchez, Cristóbal; Morales Vilches, Ana Belén; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; García Molina, Francisco Miguel; Alcubilla González, Ramón (2014-01-31)
      Article
      Accés restringit per política de l'editorial
      Laser Firing Contact (LFC) and Laser Doping (LD) have become potential alternatives to the Al BSF thermal processing conventionally used in p-type c-Si solar cell rear contacts. Optimized LFC and LD processes allow, not ...

    • Optimization of laser processes in n+Emitter formation for c-Si solar cells 

      Orpella García, Alberto; Martín García, Isidro; Blanqué, Servane; Voz Sánchez, Cristóbal; Sánchez, I.; Colina, M.; Molpeceres, C.; Alcubilla González, Ramón (2009-09)
      Text en actes de congrés
      Accés obert
      Punctual phosphorus diffused emitters were achieved by laser patterning phosphorus doped a-SiCx:H films deposited by PECVD as a doping source. Two different lasers at wavelengths of 1064 nm and 532 nm were used. Phosphorus ...

    • Optimization of the rear point contact scheme of crystalline silicon solar cells using laser-fired contacts 

      Molpeceres, C.; Perales Lorente, José Francisco; Ortega Villasclaras, Pablo Rafael; Orpella García, Alberto; López, Gema; Martín García, Isidro; Voz Sánchez, Cristóbal; Alcubilla González, Ramón; Sánchez, Isabel; Colina, M. (2010)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      This paper is focused on the optimization of the rear contact scheme of p-type c-Si LFC-PERC high efficiency solar cells minimizing base ohmic losses without jeopardize rear passivation. This is carried out optimizing on ...

    • Optoelectronic devices based on evaporated pentacene films 

      Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Martín García, Isidro; Muñoz Cervantes, Delfina; Orpella García, Alberto; Vetter, Michael; Alcubilla González, Ramón (2005-01)
      Article
      Accés restringit per política de l'editorial
      Aluminium/pentacene Schottky diodes have been fabricated on glass substrates. An ohmic, transparent front contact was prepared by sputtering a highly conductive indium–tin-oxide layer. The pentacene layer was evaporated ...

    • Optoelectronic properties of CuPc thin films deposited at different substrate temperatures 

      Pirriera, Della M; Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal; Stella, M; Bertomeu Balaguero, Joan; Alcubilla González, Ramón (Institute of Physics (IOP), 2009-07)
      Article
      Accés restringit per política de l'editorial
      Structural and optical characterization of copper phthalocyanine thin film thermally deposited at different substrate temperatures was the aim of this work. The morphology of the films shows strong dependence on temperature, ...

    • Origin of passivation in hole-selective transition metal oxides for crystalline silicon heterojunction solar cells 

      Gerling Sarabia, Luis Guillermo; Voz Sánchez, Cristóbal; Alcubilla González, Ramón; Puigdollers i González, Joaquim (2017-01-23)
      Article
      Accés obert
      Transition metal oxides (TMOs) have recently demonstrated to be a good alternative to boron/phosphorous doped layers in crystalline silicon heterojunction solar cells. In this work, the interface between n-type c-Si (n-Si) ...

    • Origin of the negative differential resistance in the output characteristics of a picene-based thin-film transistor 

      Ros Costals, Eloi; Puigdollers i González, Joaquim; Ortega Villasclaras, Pablo Rafael; Voz Sánchez, Cristóbal (Institute of Electrical and Electronics Engineers (IEEE), 2020-01-09)
      Article
      Accés obert
      In this work, we have fabricated and studied p-type picene thin-film transistors. Although the devices exhibited good electrical performance with high field-effect mobility (up to 1.3 cm 2 /V·s) and on/off ratios above 10 ...

    • Origin of the negative differential resistance in the output characteristics of a picene-based thin-film transistor 

      Ros, Eloi; Puigdollers i González, Joaquim; Ortega Villasclaras, Pablo Rafael; Voz Sánchez, Cristóbal (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Text en actes de congrés
      Accés obert
      In this work, we have fabricated and studied p-type picene thin-film transistors. Although the devices exhibited good electrical performance with high field-effect mobility (up to 1.3 cm2/V¿s) and on/off ratios above ...