El grup consta de 18 membres doctors. Es un grup de llarga trajectòria l’activitat del qual es centra en el desenvolupament i fabricació de dispositius semiconductors. Per això disposa d’un laboratori de fabricació “Sala Blanca” que constitueix un element vertebrador de l’activitat del grup. En particular la recerca es centra en les cèl•lules solars fotovoltaiques i en el desenvolupament de tecnologies de fabricació més econòmiques: tecnologia laser per cèl•lules solars de Silici, fabricació de cèl•lules HIT ( Heterojunction with thin Intrinsec layer ) , IBC (Intedigitated Back Contact), capes de passivació, cèl•lules orgàniques, termofotovoltaic. Un altre focus d’activitat son els cristalls fotònics 3D ja sia en Silici com col•loïdals i tecnologies de manipulació de líquids a escala micromètrica. Finalment també treballem en el control de càrrega en dielèctrics de dispositius MEMS i MOS, i en desenvolupament, caracterització i control de sensors, en particular anemomètrics i químics.

Research in micro and nanotechnology devices and their application in microelectronics, MEMSs, photonics and photovoltaic solar energy.

Research in micro and nanotechnology devices and their application in microelectronics, MEMSs, photonics and photovoltaic solar energy.

Recent Submissions

  • 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
    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 cm 2 /V·s) and on/off ratios above 10 ...
  • Germanium photovoltaic cells with MoO x hole-selective contacts 

    Alcañiz, A.; López Rodríguez, Gema; Martín García, Isidro; Jiménez Pagán, Alba; Datas Medina, Alejandro; Calle, Eric; Ros Costals, Eloi; Gerling Sarabia, Luis Guillermo; Voz Sánchez, Cristóbal; del Cañizo Nadal, Carlos; Alcubilla González, Ramón (2019-03-15)
    Article
    Restricted access - publisher's policy
    Very thin, thermally evaporated MoOx (x¿<¿3) layer has been used as transparent hole-selective contact on an n-type Germanium substrate to effectively demonstrate PV conversion capability. The fabricated MoOx/Ge heterojunction ...
  • Enhanced chiral sensing with dielectric nanoresonators 

    García Guirado, José; Svedendahl, Mikael; Puigdollers i González, Joaquim; Quidant, Romain (2019-12-18)
    Article
    Restricted access - publisher's policy
    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, ...
  • TCO-free low-temperature p+ emitters for back-junction c-Si solar cells 

    Martín García, Isidro; Coll Valentí, Arnau; López Rodríguez, Gema; Ortega Villasclaras, Pablo Rafael; Desrues, Thibaut; Orpella García, Alberto; Alcubilla González, Ramón (Elsevier, 2015-08-28)
    Article
    Open Access
    In this work, we report on the fabrication and characterization of n-type c-Si solar cells whose p+ emitters are based on laser processed aluminum oxide/silicon carbide (Al2O3/SiCx) films. The p+ emitter is defined at the ...
  • Diffusive representation and sliding mode control of charge trapping in Al2O3MOS capacitors 

    Bheesayagari, Chenna Reddy; Pons Nin, Joan; Atienza García, María Teresa; Domínguez Pumar, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
    Article
    Open Access
    The objective of this paper is to introduce a modeling strategy to characterize the dynamics of the charge trapped in the dielectric of MOS capacitors, using Diffusive Representation. Experimental corroboration is presented ...
  • 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, ...
  • A self-branched lamination of hierarchical patronite nanoarchitectures on carbon fiber cloth as novel electrode for ionic liquid electrolyte-based high energy density supercapacitors 

    Manikandan, Ramu; Justin Raj, Chellan; Nagaraju, Goli; Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal (2019-11-14)
    Article
    Restricted access - publisher's policy
    The developments of rationally designed binder-free metal chalcogenides decorated flexible electrodes are of paramount importance for advanced energy storage devices. Herein, binder-free patronite (VS4) flower-like ...
  • Capacitance study of a polystyrene nanoparticle capacitor using impedance spectroscopy 

    Véliz Noboa, Bremnen Marino; Orpella García, Alberto; Bermejo Broto, Sandra (2019-07-19)
    Article
    Restricted access - publisher's policy
    In this study, a metal-insulator-metal capacitor structure is fabricated using polystyrene nanoparticles. Impedance spectroscopy is used to evaluate the performance of this capacitor in which we found a significant magnitude ...
  • The world of IoT 

    Silvestre Bergés, Santiago; Salazar Soler, Jorge (Czech Technical University, 2019-10-02)
    Book
    Open Access
    This book describes the world of Internet of things (IoT). Main technologies involved in the use of IoT are introduced. Moreover, IoT devices and platforms are also described in this module. Finally, a list of real IoT ...
  • 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
    Restricted access - publisher's policy
    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 ...
  • Acceleration of the measurement time of thermopiles using sigma-delta control 

    Domínguez Pumar, Manuel; perez, eduard; Ramon, Marina; Jiménez Serres, Vicente; Bermejo Broto, Sandra; Pons Nin, Joan (Multidisciplinary Digital Publishing Institute (MDPI), 2019-07-18)
    Article
    Open Access
    This work presents a double sliding mode control designed for accelerating the measurement of heat fluxes using thermopiles. The slow transient response generated in the thermopile, when it is placed in contact with the ...
  • 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 ...

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