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

  • N-type doping of SiC-passivated Ge by pulsed laser melting towards the development of interdigitated back contact thermophotovoltaic devices 

    Jiménez Pagán, Alba; Napolitani, Enrico; Datas Medina, Alejandro; Martín García, Isidro; López Rodríguez, Gema; Cabrero Piris, Mariona; Sgarbossa, Francesco; Milazzo, Ruggero; Carturan, Sara Maria; De Salvador, Davide; López García, Iñaki; Ryu, Yu Kyoung; Martinez Rodrigo, Javier; del Cañizo Nadal, Carlos (2022-01-01)
    Article
    Restricted access - publisher's policy
    In this article, a method for phosphorous (n-type) doping of germanium based on spin-on dopant sources and Pulsed Laser Melting (PLM) throughout an amorphous silicon carbide (a-SixC1-x:H) layer, which provides both surface ...
  • Controlling the anionic ratio and gradient in kesterite technology 

    Andrade Arvizu, Jacob; Fonoll Rubio, Robert; Izquierdo Roca, Víctor; Becerril Romero, Ignacio; Sylla, Dioulde Huguette; Vidal Fuentes, Pedro; Jehl Li-Kao, Zacharie; Thomere, Angélica; Giraldo, Sergio; Tiwari, Kunal; Resalati, Shahaboddin; Guc, Maxim; Placidi, Marcel Jose (2022-01-03)
    Article
    Restricted access - publisher's policy
    Accurate anionic control during the formation of chalcogenide solid solutions is fundamental for tuning the physicochemical properties of this class of materials. Compositional grading is the key aspect of band gap engineering ...
  • A simple and effective methodology for sizing electrical energy storage (EES) systems based on energy balance 

    Kichou, Sofiane; Markvart, Tomas; Wolf, Petr; Silvestre Bergés, Santiago; Chouder, Aissa (Elsevier, 2022-05)
    Article
    Restricted access - publisher's policy
    The use of the electrical energy storage (EES) plays an important role in the transition of energy generation towards renewable energy sources (RESs). An effective sizing of EES systems is very important in order to cope ...
  • Stabilization of the J-V characteristic of a perovskite solar cell using an intelligent control loop 

    Bheesayagari, Chenna Reddy; Martínez-Denegrí Sánchez, Guillermo; Orpella García, Alberto; Pons Nin, Joan; Bermejo Broto, Sandra; Alcubilla González, Ramón; Martorell Pena, Jordi; Domínguez Pumar, Manuel (2021-01-02)
    Article
    Open Access
    The phenomena related to charge trapping are among the most relevant open issues that affect the long-term stability of perovskite-based devices. According to this, the objective of this paper is to report experimental ...
  • Space-charge limited ionic conductivity enhancement in gel polymer electrolyte capacitors by emb e dding nanoparticles 

    Cedeño Mata, Kristel Michelle; Orpella García, Alberto; Domínguez Pumar, Manuel; Bermejo Broto, Sandra (2021-08-03)
    Article
    Restricted access - publisher's policy
    In this work, a novel mixture of ionic liquid gel polymer electrolyte (ILGPE), containing 1-butyl-3-methylimidazolium bromide, ammonium acetate and poly(vinyl alcohol), with Si@C and SiO2 embedded nanoparticles is fabricated. ...
  • Progress and perspectives of thin film kesterite photovoltaic technology: a critical review 

    Giraldo, Sergio; Jehl Li-Kao, Zacharie; Placidi, Marcel Jose; Saucedo Silva, Edgardo Ademar (2019-02-14)
    Article
    Open Access
    The latest progress and future perspectives of thin film photovoltaic kesterite technology are reviewed herein. Kesterite is currently the most promising emerging fully inorganic thin film photovoltaic technology based on ...
  • Interdigitated back-contacted crystalline silicon solar cells fully manufactured with atomic layer deposited selective contacts 

    Masmitjà Rusiñol, Gerard; Ros Costals, Eloi; Almache Hernández, Rosa Estefanía; Pusay Villarroel, Benjamín Andrés; Martín García, Isidro; Voz Sánchez, Cristóbal; Saucedo Silva, Edgardo Ademar; Puigdollers i González, Joaquim; Ortega Villasclaras, Pablo Rafael (2022-04-02)
    Article
    Open Access
    The interdigitated back-contacted (IBC) solar cell concept has been extensively studied for single-junction cells and more recently as a good choice for three-terminal tandem devices. In this work, carrier-selective contacts ...
  • Does Sb2Se3 admit nonstoichiometric conditions? How modifying the overall se content affects the structural, optical, and optoelectronic properties of Sb2Se3 thin films 

    Caño Prades, Ivan; Vidal Fuentes, Pedro; Calvo Barrio, Lorenzo; Alcobé Olle, Xavier; Giraldo, Sergio; Sánchez González, Yudania; Jehl Li-Kao, Zacharie; Placidi, Marcel Jose; Puigdollers i González, Joaquim; Izquierdo Roca, Víctor; Saucedo Silva, Edgardo Ademar; Asensi López, José Miguel (2022-03-09)
    Article
    Open Access
    Sb2Se3 is a quasi-one-dimensional (1D) semiconductor, which has shown great promise in photovoltaics. However, its performance is currently limited by a high Voc deficit. Therefore, it is necessary to explore new strategies ...
  • Atomic layer deposition of vanadium oxide films for crystalline silicon solar cells 

    Ros Costals, Eloi; Masmitjà Rusiñol, Gerard; Almache Hernández, Rosa Estefanía; Pusay Villarroel, Benjamín Andrés; Tiwari, Kunal; Saucedo Silva, Edgardo Ademar; Justin Raj, Chellan; Chul Kim, Byung; Puigdollers i González, Joaquim; Martín García, Isidro; Voz Sánchez, Cristóbal; Ortega Villasclaras, Pablo Rafael (Royal Society of Chemistry (RSC), 2022)
    Article
    Open Access
    Transition metal oxides (TMOs) are promising materials to develop selective contacts on high-efficiency crystalline silicon solar cells. Nevertheless, the standard deposition technique used for TMOs is thermal evaporation, ...
  • Influence of wavelength and pulse duration on the selective laser ablation of WOx, VOx and MoOx thin films 

    Muñoz García, Cristina; Canteli, David; Lauzurica, Sara; Morales, Miguel; Molpeceres Alvarez, Carlos; Ros Costals, Eloi; Ortega Villasclaras, Pablo Rafael; López González, Juan Miguel; Voz Sánchez, Cristóbal (Elsevier, 2022-02-01)
    Article
    Open Access
    In this paper, we present a study of the laser scribing of WOx, VOx, and MoOx films, deposited onto crystalline silicon, with three different wavelengths (355 nm, 532 nm, and 1064 nm) and in two temporal regimes in pulse ...
  • Numerical investigation of interface passivation strategies for Sb2Se3/CdS solar cells 

    Gon Medaille, Axel; Tiwari, Kunal; Giraldo, Sergio; Placidi, Marcel Jose; Saucedo Silva, Edgardo Ademar; Jehl Li-Kao, Zacharie (Wiley, 2021-11-24)
    Article
    Open Access
    Sb2Se3 is an emerging earth-abundant material praised for its promising optoelectronic properties, although the presence of interfacial defects at the vicinity of the p–n junction limit its performance as photovoltaic ...
  • Insights on the thermal stability of the Sb2Se3 quasi-1D photovoltaic technology 

    Vidal Fuentes, Pedro; Guc, Maxim; Becerril Romero, Ignacio; Sylla, Dioulde Huguette; Alcobé Olle, Xavier; Sánchez González, Yudania; Pérez Rodríguez, Alejandro; Saucedo Silva, Edgardo Ademar; Izquierdo Roca, Víctor (Wiley, 2021-10-13)
    Article
    Restricted access - publisher's policy
    This work explores the thermal stability of antimony-based photovoltaic (PV) technologies investigating the effect of low-temperature (50—350¿°C) postdeposition annealings (PDAs) on bare Sb2Se3 absorbers and complete ...

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