Now showing items 1-20 of 25

    • 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, ...
    • Automatització d'un forn de difusió i caracterització d'emissors de bor 

      Masmitjà Rusiñol, Gerard (Universitat Politècnica de Catalunya, 2013-07-22)
      Master thesis
      Open Access
      [ENGLISH] In this project has presented the work of doing the diffusion furnace automation and of doing the fabrication and characterization of boron emitters. A programming from scratch has been designed in order to be ...
    • Back junction n-type silicon heterojunction solar cells with V2O5 hole-selective contact 

      Gerling Sarabia, Luis Guillermo; Masmitjà Rusiñol, Gerard; Voz Sánchez, Cristóbal; Ortega Villasclaras, Pablo Rafael; Puigdollers i González, Joaquim; Alcubilla González, Ramón (Elsevier, 2016)
      Conference lecture
      Open Access
    • Boron diffused emitters passivated with Al2O3 films 

      Masmitjà Rusiñol, Gerard; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Calle Martín, Eric; García Molina, Francisco Miguel; Martín García, Isidro; Orpella García, Alberto; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
      Restricted access - publisher's policy
      In this work we study the fabrication and characterization of boron diffused emitters using FZ c-Si(n) substrates. Emitter surface was passivated with Al2O3(25 nm thick) layers deposited by thermal atomic layer deposition ...
    • Considerations on the electronic control system for autonomous underwater vehicle 

      Masmitjà Rusiñol, Ivan; Masmitjà Rusiñol, Gerard; González, J.; Gomáriz Castro, Spartacus (SARTI, 2010)
      Article
      Open Access
    • Desarrollo de un vehículo de observación oceanográfica autónomo 

      González Agudelo, Julián; Masmitjà Rusiñol, Ivan; Masmitjà Rusiñol, Gerard; Prats Rodríguez, Jordi; Gomáriz Castro, Spartacus (2011)
      Conference lecture
      Open Access
      En este trabajo se presenta el diseño y construcción del vehículo Guanay II. Es un vehículo autónomo submarino que navega sobre la superficie marina y en determinados puntos preestablecidos realiza inmersiones en vertical ...
    • Design and construction of the GUANAY-II autonomous underwater vehicle 

      Gomáriz Castro, Spartacus; González Agudelo, Julián; Arbós, Alejandro; Masmitjà Rusiñol, Ivan; Masmitjà Rusiñol, Gerard; Prat Tasias, Jordi (Institute of Electrical and Electronics Engineers, 2011)
      Conference report
      Restricted access - publisher's policy
      This paper presents the design and construction of Guanay II vehicle. It is an autonomous underwater vehicle that navigates over the sea surface and, at certain fixed points, dives vertically to obtain a profile of a water ...
    • Design, fabrication and characterisation of interdigitated back-contacted c-Si solar cells based on transition metal oxides 

      Masmitjà Rusiñol, Gerard (Universitat Politècnica de Catalunya, 2019-09-25)
      Doctoral thesis
      Open Access
      The photovoltaic industry is mainly dominated by crystalline silicon (c-Si) solar cells, in which contact selectivity is usually achieved by doping the wafer surfaces with phosphorous (n+) and boron (p+) by means of high ...
    • Development of a control system for an autonomous underwater vehicle 

      Masmitjà Rusiñol, Ivan; Masmitjà Rusiñol, Gerard; González Agudelo, Julián; Shariat Panahi, Shahram; Gomáriz Castro, Spartacus (2010)
      Conference lecture
      Open Access
      This work proposes the development of a control system for an autonomous underwater vehicle dedicated to the observation of the oceans. The vehicle, a hybrid between Autonomous Underwater Vehicles (AUVs) and Autonomous Surface ...
    • 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 ...
    • Expanding the perspective of polymeric selective contacts in photovoltaic devices using branched polyethylenimine 

      Ros Costals, Eloi; Tom, Thomas; Rovira Ferrer, David; Lopez Vidrier, Julià; Masmitjà Rusiñol, Gerard; Pusay Villarroel, Benjamín Andrés; Almache Hernández, Rosa Estefanía; Martín García, Isidro; Jiménez Guerra, Maykel; Saucedo Silva, Edgardo Ademar; Tormos, Eva; Asensi López, José Miguel; Ortega Villasclaras, Pablo Rafael; Bertomeu Balagueró, Joan; Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal (American Chemical Society (ACS), 2022-09-05)
      Article
      Open Access
      This work studies the use of polymeric layers of polyethylenimine (PEI) as an interface modification of electron-selective contacts. A clearly enhanced electrical transport with lower contact resistance and significant ...
    • Hole Transport Layer based on atomic layer deposited V2Ox films: paving the road to semi-transparent CZTSe solar cells 

      Almache Hernández, Rosa Estefanía; Pusay Villarroel, Benjamín Andrés; Tiwari, Kunal; Ros, Eloi; Masmitjà Rusiñol, Gerard; Becerril Romero, Ignacio; Martín García, Isidro; Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Saucedo Silva, Edgardo Ademar; Ortega Villasclaras, Pablo Rafael (2021-09-15)
      Article
      Open Access
      This work explores the use of very thin transparent vanadium oxide films deposited by atomic layer deposition (ALD) technique as hole transport layer for CZTSe solar cells as alternative of opaque molybdenum based contacts. ...
    • IBC n-type C-Si solar cells based on laser doping processing for selective emitter and base contact formation 

      Masmitjà Rusiñol, Gerard; Ortega Villasclaras, Pablo Rafael; Martín García, Isidro; López Rodríguez, Gema; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (2016)
      Conference lecture
      Open Access
    • Improved electron selectivity in silicon solar cells by cathode modification with a dipolar conjugated polyelectrolyte interlayer 

      Ros Costals, Eloi; Barquera Bibiano, Zaira; Ortega Villasclaras, Pablo Rafael; Gerling Sarabia, Luis Guillermo; Masmitjà Rusiñol, Gerard; Martín García, Isidro; Alcubilla González, Ramón; Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal (2019-01-01)
      Article
      Open Access
      This work studies a novel electron-selective contact for n-type silicon solar cells based on the modification of the cathode with a polymeric interlayer. Specifically, a thin layer of the conjugated polyelectrolyte PFN is ...
    • Interdigitated back contacted c-Si(p) solar cells with photovoltaic efficiencies beyond 22% 

      Calle Prado, Eric; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Martín García, Isidro; Carrió, David; Masmitjà Rusiñol, Gerard; Voz Sánchez, Cristóbal; Orpella García, Alberto; Puigdollers i González, Joaquim; Alcubilla González, Ramón (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      In this work we show a baseline fabrication process of interdigitated back contacted IBC c-Si(p) solar cells, which combines conventional diffusion oven stages to define base p+ and emitter n+/n++ regions at the back side, ...
    • 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 ...
    • Interdigitated back-contacted crystalline silicon solar cells with lowerature dopant-free selective contacts 

      Masmitjà Rusiñol, Gerard; Ortega Villasclaras, Pablo Rafael; Puigdollers i González, Joaquim; Gerling Sarabia, Luis Guillermo; Martín, I.; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (Royal Society of Chemistry, 2018-01-01)
      Article
      Open Access
    • Introducció de la nanotecnologia a l'ensenyament secundari 

      Masmitjà Rusiñol, Gerard (Universitat Politècnica de Catalunya, 2020-06-17)
      Master thesis
      Open Access
      Aquest treball de màster mostra com es pot utilitzar la nanotecnologia com a fil conductor que permeti, per una banda, millorar les competències STEM de l'alumnat de l'ensenyament secundari obligatori. I per altra banda, ...
    • Low-cost high-sensitive suns-Voc measurement instrument to characterize c-Si solar cells 

      Ortega Villasclaras, Pablo Rafael; Piñol, Juan M.; Martín García, Isidro; Orpella García, Alberto; Masmitjà Rusiñol, Gerard; López Rodríguez, Gema; Ros Costals, Eloi; Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Alcubilla González, Ramón (2020-09-01)
      Article
      Open Access
      Measuring open-circuit voltage (Voc) vs. light intensity (Suns) in solar cells permits the access of cell performance without the series resistance effect. This work shows the implementation of a Suns-Voc measurement system ...
    • Polyethienimine interface dipole tuning for electron selective contacts 

      Ros Costals, Eloi; Tom, Thomas; Masmitjà Rusiñol, Gerard; Pusay Villarroel, Benjamín Andrés; Almache Hernández, Rosa Estefanía; Jiménez Guerra, Maykel; Lopez Vidrier, Julià; Saucedo Silva, Edgardo Ademar; Ortega Villasclaras, Pablo Rafael; Bertomeu Balagueró, Joan; Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Conference report
      Restricted access - publisher's policy
      This work studies the use of thin layers of polyethylenimine (PEI) as an interface film to produce electron selective contacts for photovoltaic applications in crystalline silicon. Generally, in conjugated polyelectrolytes ...