Enviaments recents

  • Bromine etching of kesterite thin films: perspectives in depth defect profiling and device performance improvement 

    Tiwari, Kunal Jogendra; Jiménez Arguijo, Alex; Giraldo, Sergio; Placidi, Marcel Jose; Calvo-Barrio, L; Fonoll Rubio, Robert; Izquierdo Roca, Víctor; Sánchez González, Yudania; Perez Rodriguez, Alejandro; Saucedo Silva, Edgardo Ademar; Jehl Li-Kao, Zacharie (Institute of Electrical and Electronics Engineers (IEEE), 2021)
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    Accés restringit per política de l'editorial
    Using a controlled bromine etching on kesterite absorbers, two major results are obtained. We establish the first defect depth profiling and secondary phases depth profiling of a state of the art Cu2ZnSnSe4 (CZTSe) film ...
  • Study of PV systems for self-consumption at the UPC based on simulations by using PVSol 

    Silvestre Bergés, Santiago (Czech Technical University, 2022)
    Comunicació de congrés
    Accés obert
    The aim of this work is to carry out a sustainability study in five campuses of the Universitat Politècnica de Catalunya BarcelonaTech (UPC) around Catalunya, i.e. Campus North and South Campuses in Barcelona city, Campus ...
  • Laser fired contacts on amorphous silicon deposited by hot-wire cvd on crystalline silicon 

    Blanque, S; Voz Sánchez, Cristóbal; Muñoz Cervantes, Delfina; Martín García, Isidro; Orpella García, Alberto; Puigdollers i González, Joaquim; Alcubilla González, Ramón (WIP Wirtschaft und Infrastruktur GmbH & Co. Planungs-KG, 2008)
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    Accés restringit per política de l'editorial
    In this work we study aluminium laser-fired contacts for intrinsic amorphous silicon layers deposited by Hot-Wire CVD. This structure could be used as an alternative low temperature back contact for rear passivated ...
  • The origin of emitter-like recombination for inverted c-Si surfaces 

    Martín García, Isidro; Hoex, B; Sanden, M C M van de; Alcubilla González, Ramón; Kessels, W M M (WIP Wirtschaft und Infrastruktur GmbH & Co. Planungs-KG, 2008)
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    c-Si samples whose surface passivation is based on highly inverted surfaces experimentally show a decrease in effective lifetime at low illumination levels while a flat dependence is expected from the current theoretical ...
  • Understanding noise-shaping in sigma-delta controls of surface potential for MOX gas sensors 

    Domínguez Pumar, Manuel; Kowalski, Lukasz; Monge Villora, Oscar; Olm Miras, Josep Maria; Navarrete Gatell, Eric; Llobet Valero, Eduard; Pons Nin, Joan (Institute of Electronics, Information and Communications Engineers (IEICE), 2018)
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    The objective of this paper is to explain how quantization noise-shaping can be achieved for the output bitstream of sigma-delta controls of surface potential (SP) in MOX gas sensors. These controllers use temperature ...
  • Exploring the performance of a miniature 3D wind sensor under extreme martian winds up to the dust devil scale 

    Domínguez Pumar, Manuel; Kowalski, Lukasz; Jiménez Serres, Vicente; Rodríguez Pérez, Ivette María; Soria Guerrero, Manel (2019)
    Text en actes de congrés
    Accés obert
    The objective of this paper is to explore the performance of a miniature 3D spherical wind sensor for Mars atmosphere, working under extreme wind speeds, up to the Dust Devil scale. The experimental campaign has been made ...
  • Testing campaign of a martian spherical wind sensor at the AWTSII Wind Tunnel Facility 

    Kowalski, Lukasz; Gorreta Mariné, Sergio; Atienza García, María Teresa; Jiménez Serres, Vicente; Castañer Muñoz, Luis María; Domínguez Pumar, Manuel (2018)
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  • 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)
    Comunicació de congrés
    Accés obert
  • Macroporous silicon for high-capacitance devices using metal electrodes 

    Vega Bru, Didac; Reina Marsinyach, Jordi; Zapata Rodríguez, Mireya; Pavón Urbano, Ramón; Rodríguez Martínez, Ángel (Universitat de València, 2014)
    Comunicació de congrés
    Accés obert
  • Study of PV systems for self-consumption at the UPC 

    Silvestre Bergés, Santiago; Fontanilles, Daniel (WIP Wirtschaft und Infrastruktur GmbH & Co. Planungs-KG, 2019)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    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)
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    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)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    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 ...

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