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

  • Substrate temperature optimization of pulsed-laser-deposited and in-situ Zn-supplemented-CZTS films and their integration into photovoltaic devices 

    Elhmaidi, Zakaria Oulad; Saucedo Silva, Edgardo Ademar; Abd-Lefdil, Mohammed; El Khakani, My Ali (2022-02-10)
    Article
    Restricted access - publisher's policy
    The pulsed laser deposition (PLD) technique was used to deposit CZTS thin films onto SLG/Mo substrates via the KrF-laser ablation of a composite target consisting of Cu2ZnSnS4 pellet onto which Zn strips were purposely ...
  • Chapter 4: intelligent fault diagnosis of photovoltaic systems 

    Chouder, Aissa; Silvestre Bergés, Santiago (2022-07-13)
    Part of book or chapter of book
    Restricted access - publisher's policy
    Photovoltaic (PV) systems operating in real conditions of work are very often subject to several faults that may lower significantly the produced energy and shorten their availability. Therefore, powerful and trusted fault ...
  • Bromine etching of kesterite thin films: perspectives in depth defect profiling and device performance improvement 

    Tiwari, Kunal; 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)
    Conference report
    Restricted access - publisher's policy
    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 ...
  • Synergetic effect induced/tuned bimetallic nanoparticles (Pt-Ni) anchored graphene as a catalyst for oxygen reduction reaction and scalable SS-314L serpentine flow field proton exchange membrane fuel cells (PEMFCs) 

    Velayutham, Rajavel; Palanisamy, Karthikeyan; Manikandan, Ramu; Velumani, Thiagarajan; Kumar AP, Senthil; Puigdollers i González, Joaquim; Chul Kim, Byung (2022-08-01)
    Article
    Restricted access - publisher's policy
    A simple design of electroactive and cost-effective electrocatalysts for oxygen reduction reaction (ORR) activity is crucial towards energy conversion in the commercialization of proton exchange membrane fuel cells (PEMFCs). ...
  • Life cycle assessment of different chalcogenide thin-film solar cells 

    Resalati, Shahaboddin; Okoroafor, Tobechi; Maalouf, Amani; Saucedo Silva, Edgardo Ademar; Placidi, Marcel Jose (2022-05-01)
    Article
    Open Access
    Thin-film photovoltaics (PV) cells offer several benefits over conventional first-generation PV technologies, including lighter weight, flexibility, and lower power generation cost. Among the competing thin-film technologies, ...
  • Study of PV systems for self-consumption at the UPC based on simulations by using PVSol 

    Silvestre Bergés, Santiago (Czech Technical University, 2022)
    Conference lecture
    Open Access
    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 ...
  • Acceleration and drift reduction of MOX gas sensors using active sigma-delta controls based on dielectric excitation 

    Solà Peñafiel, Nil; Manyosa i Vilardell, Xavier; Navarrete Gatell, Eric; Ramos Castro, Juan José; Jiménez Serres, Vicente; Bermejo Broto, Sandra; García, Isabel; Llobet Valero, Eduard; Domínguez Pumar, Manuel (2022-08-15)
    Article
    Restricted access - publisher's policy
    The objective of this paper is to apply a closed-loop control based on dielectric excitation to MOX gas sensors in order to improve their response time. The control implements a feedback loop in which temperature modulations ...
  • Towards low cost and sustainable thin film thermoelectric devices based on quaternary chalcogenides 

    Isotta, Eleonora; Andrade Arvizu, Jacob; Syafiq, Ubaidah; Jiménez Arguijo, Alex; Navarro Güell, Alejandro; Guc, Maxim; Saucedo Silva, Edgardo Ademar; Scardi, Paolo (2022-05-20)
    Article
    Open Access
    A major challenge in thermoelectrics (TEs) is developing devices made of sustainable, abundant, and non-toxic materials. Furthermore, the technological drive toward low sizes makes crucial the study of nano and micro ...
  • 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 ...

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