Enviaments recents

  • Evaluation of the performance and degradation of crystalline silicon-based photovoltaic modules in the Saharan environment 

    Silvestre Bergés, Santiago; Tahri, Ali; Tahri, Fatima; Benlebna, Soumiya; Chouder, Aissa (2018-06-01)
    Article
    Accés restringit per política de l'editorial
    The aim of this paper is to present three years of an evaluation of the performance and degradation rate of three different crystalline silicon-based photovoltaic (PV) modules in the Saharan environment. The PV modules ...
  • Catalytic reforming of dimethyl ether in microchannels 

    Ledesma Rodriguez, Cristian; López, Eduardo; Trifonov, T.; Rodríguez Martínez, Ángel; Llorca Piqué, Jordi (2018-03-09)
    Article
    Accés restringit per política de l'editorial
    The steam reforming and oxidative steam reforming of dimethyl ether (DME) were tested at 573–773¿K over a CuZn/ZrO2 catalyst in microreactors with three different types of channels: ceramic square channels with side lengths ...
  • Thermal dynamics modeling of a 3D wind sensor based on hot thin film anemometry 

    Atienza García, María Teresa; Kowalski, Lukasz; Gorreta Mariné, Sergio; Jimenez Serres, Vicente; Domínguez Pumar, Manuel (2018-02-01)
    Article
    Accés obert
    The objective of this paper is to obtain time-varying models of the thermal dynamics of a 3D hot thin film anemometer for Mars atmosphere. To this effect, a proof of concept prototype of the REMS (Rover Environmental ...
  • V2Ox-based hole-selective contacts for c-Si interdigitated back-contacted solar cells 

    Masmitjà Rusiñol, Gerard; Gerling Sarabia, Luis Guillermo; Ortega Villasclaras, Pablo Rafael; Puigdollers i González, Joaquim; Martín García, Isidro; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (Royal Society of Chemistry, 2017-04-06)
    Article
    Accés restringit per política de l'editorial
    Over the last few years, transition metal oxide layers have been proposed as selective contacts both for electrons and holes and successfully applied to silicon solar cells. However, better published results need the use ...
  • Interdigitated back-contacted crystalline silicon solar cells with lowerature dopant-free selective contacts 

    Masmitjà Rusiñol, Gerard; Ortega Villasclaras, Pablo Rafael; Puigdollers i González, Joaquim; Gerling Sarabia, Luis Guillermo; Martín, I.; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (Royal Society of Chemistry, 2018-01-01)
    Article
    Accés obert
  • Photonic molecules for improving the optical response of macroporous silicon photonic crystals for gas sensing purposes 

    Cardador Maza, David; Segura García, Daniel; Rodríguez Martínez, Ángel (2018-02-19)
    Article
    Accés obert
    In this paper, we report the benefits of working with photonic molecules in macroporous silicon photonic crystals. In particular, we theoretically and experimentally demonstrate that the optical properties of a resonant ...
  • Analysis of the dynamics of an active control of the surface potential in metal oxide gas sensors 

    Monge Villora, Oscar; Domínguez Pumar, Manuel; Olm Miras, Josep Maria (Pergamon Press, 2018-05-08)
    Article
    Accés obert
  • Second order sigma-delta control of charge trapping for MOS capacitors 

    Bheesayagari, Chenna Reddy; Gorreta Mariné, Sergio; Pons Nin, Joan; Domínguez Pumar, Manuel (2017-09-01)
    Article
    Accés restringit per política de l'editorial
    This paper presents the circuit topology of a second order sigma-delta control of charge trapping for MOS capacitors. With this new topology it is possible to avoid the presence of plateaus that can be found in first-order ...
  • Using a Second Order Sigma-Delta Control to Improve the Performance of Metal-Oxide Gas Sensors 

    Kowalski, Lukasz; Pons Nin, Joan; Navarrete, Eric; Llobet Valero, Eduard; Domínguez Pumar, Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2018-02-23)
    Article
    Accés obert
    Controls of surface potential have been proposed to accelerate the time response of MOX gas sensors. These controls use temperature modulations and a feedback loop based on first-order sigma-delta modulators to keep ...
  • Temperature dependent current-voltage characteristics of Au/n-Si Schottky barrier diodes and the effect of transition metal oxides as an interface layer 

    Mahato, Somnath; Puigdollers i González, Joaquim (2018-02-01)
    Article
    Accés restringit per política de l'editorial
    Temperature dependent current–voltage (I¿V) characteristics of Au/n-type silicon (n-Si) Schottky barrier diodes have been investigated. Three transition metal oxides (TMO) are used as an interface layer between gold and ...
  • Fabrication of silicon oxide microneedles from macroporous silicon 

    Rodríguez Martínez, Ángel; Molinero, D; Valera Cano, Enrique Andrés; Todorov Trifonov, Trifon; Marsal, L F; Pallarès Marzal, Josep; Alcubilla González, Ramón (2005-04)
    Article
    Accés restringit per política de l'editorial
    This paper presents a novel technique for silicon dioxide (SiO2) microneedle fabrication. Microneedles are hollow microcapillaries with tip diameters in the range of micrometers. They can be used in the fabrication of ...
  • 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 ...

Mostra'n més