Recent Submissions

  • Study of PV systems for self-consumption at the UPC 

    Silvestre Bergés, Santiago; Fontanilles, Daniel (WIP Wirtschaft und Infrastruktur GmbH & Co. Planungs-KG, 2019)
    Conference lecture
    Restricted access - publisher's policy
    The goal of this work was to develop a sustainability study in five campuses of the Universitat Politècnica de Catalunya (UPC) around Catalunya, i.e. Campus Nord and Campus Sud in Barcelona city, Campus Baix Llobregat, ...
  • 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)
    Conference report
    Open Access
    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 ...
  • Electron selective contacts based on Al2O3/TiO2/ZnO stacks for crystalline silicon solar cells 

    Zafoschnig, Lisa; Ortega Villasclaras, Pablo Rafael; Martín García, Isidro; Masmitjà Rusiñol, Gerard; López Rodríguez, Gema; Alcubilla González, Ramón (2018)
    Conference lecture
    Restricted access - publisher's policy
    In the last years, our research group has focused on the development of Interdigitated Back Contacted (IBC) solar cells based on transition metal oxides. In particular, a very thin Al2O3/TiO2 stack deposited by ALD has ...
  • Single-crystalline metal oxide, resistive gas sensors advances and perspectives 

    Llobet Valero, Eduard; Navarrete, eric; Annanouch, F.E.; Alvarado, M.; Gonzalez, E.; Ramirez, J.L.; Romero, A.; Vilanova, Xavier; Domínguez Pumar, Manuel; Vallejos, S.; Gracia, Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    Here we review recent results on the synthesis of single-crystalline metal oxide nanomaterials and their integration in resistive gas sensing devices. Emphasis is put on the integration of such nanomaterials in a wide ...
  • Simulation study of tandems of perovskite and IBC c-Si solar cells 

    Silvestre Bergés, Santiago; Mas-Marza, Elena; Puigdollers i González, Joaquim; Fabregat Fillet, Jaume; Ortega Villasclaras, Pablo Rafael; Serra, Danielle (WIP Renewable Energies, 2018)
    Conference report
    Restricted access - publisher's policy
    In this work, the simulation results obtained for a tandem configuration of perovskite, as top cell, and Interdigitated Back-Contacted (IBC) c-Si as bottom cell are presented. Two different models were used for the modelling ...
  • On the effects of free-stream turbulence intensity in the fluid flow and heat transfer from a sphere at subcritical Reynolds numbers 

    Rodríguez Pérez, Ivette María; Lehmkuhl, Oriol; Soria Guerrero, Manel; Gomez, Samuel; Domínguez Pumar, Manuel; Kowalski, Lukasz (2018)
    Conference lecture
    Restricted access - publisher's policy
    In this work, the effect of the free-stream turbu-lence on the heat transfer and the near wake behind a sphere is studied at moderate Reynolds numbers of ¿¿ ¿ ¿¿¿¿ and ¿¿ ¿ ¿¿¿. Turbulence delays the sep-aration of the ...
  • Applications of hot film anemometry to space missions 

    Jiménez Serres, Vicente; Domínguez Pumar, Manuel; Ricart Campos, Jordi; Kowalski, Lukasz; Navarro, Sara; torres, josefina; Castañer Muñoz, Luis María (VDE Conference Publications, 2008)
    Conference report
    Restricted access - publisher's policy
    In this paper the most important constraints of the wind sensors for the Martian atmosphere are described, along with an overview of the past successful designs. Practically all the data available today about the Martian ...
  • Model identification of time-varying diffusive systems 

    Atienza García, María Teresa; Kowalski, Lukasz; Gorreta Mariné, Sergio; Pons Nin, Joan; Jiménez Serres, Vicente; Domínguez Pumar, Manuel (2018)
    Conference report
    Restricted access - publisher's policy
    This paper presents a characterization method based on diffusive representation for a class of linear or nonlinear time-varying diffusive systems. The system variation with time may come as a result of the own actuation ...
  • On some properties of the output of a pulsed digital oscillator working with multiple resonances 

    Blokhina, Elena; Feely, Orla; Ricart Campos, Jordi; Domínguez Pumar, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    In this paper, we study the possible output of the pulsed digital oscillator (PDO) with multiple resonant modes of the mechanical resonator in the feedback loop. PDOs are simple circuits that allow linear resonators to ...
  • Design and test of resonators using PiezoMUMPS technology 

    Pons Nin, Joan; Gorreta Mariné, Sergio; Domínguez Pumar, Manuel; Blokhina, Elena; O'Connell, D.; Feely, Orla (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Open Access
    This paper presents preliminary results obtained with devices fabricated with the new PiezoMUMPS process. Since these devices will be used as resonators in applications based on Pulsed Digital Oscillators, we analyze, both ...
  • P3R-3 design and characterization of air coupled ultrasonic transducers based on MUMPs 

    Martínez Graullera, Óscar Fernando; Martín Arguedas, Carlos Julián; Gómez-Ullate Alvear, Luis; Domínguez Pumar, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Conference report
    Open Access
    This paper deals with the design and characterization of several capacitive micromachined ultrasonic transducer (cMUT) cells for the future design of an air-coupled transducer for non destructive testing (NDT). Each design ...
  • Pulsed digital oscillators 

    Domínguez Pumar, Manuel; Ricart Campos, Jordi; Pons Nin, Joan; Rubio, Felix (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    Conference lecture
    Open Access
    The objective of this paper is to collect the main latest results on pulsed digital oscillators. Rigorous and experimental results are presented that show what kind of sequences are at their output, the relation between ...

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