Ara es mostren els items 27-46 de 48

    • Laser Induced Forward Transfer for front contact improvement in silicon heterojunction solar cells 

      Colina Brito, Mónica Alejandra; Morales Vilches, Ana Belén; Voz Sánchez, Cristóbal; Martín García, Isidro; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Alcubilla González, Ramón (2015-05-01)
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      In this work the Laser Induced Forward Transfer (LIFT) technique is investigated to create n-doped regions on p-type c-Si substrates. The precursor source of LIFT consisted in a phosphorous-do ...
    • Laser-fired contact optimization in c-Si solar cells 

      Alcubilla González, Ramón; Ortega Villasclaras, Pablo Rafael; Orpella García, Alberto; Martín García, Isidro; Colina, M.; López Rodríguez, Gema; Voz Sánchez, Cristóbal; Sánchez, Isabel; Molpeceres, Carlos (2011-04-15)
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      Accés restringit per política de l'editorial
      In this work we study the optimization of laser-fired contact (LFC) processing parameters, namely laser power and number of pulses, based on the electrical resistance measurement of an aluminum single LFC point. LFC process ...
    • 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)
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      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 ...
    • Multicrystalline silicon thin-film solar cells based on vanadium oxide heterojunction and laser-doped contacts 

      Martín García, Isidro; López Rodríguez, Gema; Plentz, Jonathan; Jin, Chen; Ortega Villasclaras, Pablo Rafael; Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Gawlik, Annet; Jia, Guobin; Andrä, Gudrun (2019-10)
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      Liquid phase crystallized (LPC) silicon thin films on glass substrates are a feasible alternative to conventional crystalline silicon (c-Si) wafers for solar cells. Due to substrate limitation, a low-temperature technology ...
    • 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)
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      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 ...
    • New laser-based approaches to improve the passivation and rear contact quality in high efficiency crystalline silicon solar cells 

      Molpeceres Alvarez, Carlos; Colina Brito, Mónica Alejandra; Muñoz Martín, D.; Martín García, Isidro; Ortega Villasclaras, Pablo Rafael; Sánchez Aniorte, M. Isabel; Morales, Miguel; Lauzurica, Sara; García Ballesteros, Juan J.; Voz Sánchez, Cristóbal; López Rodríguez, Gema; Alcubilla González, Ramón (2013)
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    • Observation of photovoltaic effect within locally doped silicon nanojunctions using conductive probe AFM 

      Khoury, R.; Alvarez, José; Ohashi, T.; Martín García, Isidro; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Jin, Chen; Li, J.; Rusli, E.; Bulkin, P.; Johnson, E. V. (2020-10-01)
      Article
      Accés obert
      Localized p-doped nanojunctions (200–300 nm in diameter) were formed in n-type crystalline silicon substrates and were characterized using scanning electron microscopy (SEM) and conductive-probe atomic force microscopy ...
    • Optimization of al2o3 films obtained by ald to passivate p-type c-silicon wafers 

      López Rodríguez, Gema; Ortega Villasclaras, Pablo Rafael; Martín García, Isidro; Colina Brito, Mónica Alejandra; Orpella García, Alberto; Alcubilla González, Ramón (2012)
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    • Optimization of laser doping processes for the creation of p+ regions from solid dopant sources 

      Colina Brito, Mónica Alejandra; Martín García, Isidro; Voz Sánchez, Cristóbal; Morales Vilches, Ana Belén; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Orpella García, Alberto; Alcubilla González, Ramón; Sanchez Aniorte, Maria Isabel; Molpeceres Alvarez, Carlos (2012)
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    • Optimization of laser processes for local rear contacting of passivated silicon solar cells 

      Colina Brito, Mónica Alejandra; Martín García, Isidro; Voz Sánchez, Cristóbal; Morales Vilches, Ana Belén; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; García Molina, Francisco Miguel; Alcubilla González, Ramón (2014-01-31)
      Article
      Accés restringit per política de l'editorial
      Laser Firing Contact (LFC) and Laser Doping (LD) have become potential alternatives to the Al BSF thermal processing conventionally used in p-type c-Si solar cell rear contacts. Optimized LFC and LD processes allow, not ...
    • P-type c-Si solar cells based on rear side laser processing of Al 2O 3/SiC x stacks 

      Ortega Villasclaras, Pablo Rafael; Martín García, Isidro; López Rodríguez, Gema; Colina Brito, Mónica Alejandra; Orpella García, Alberto; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (2012-11)
      Article
      Accés restringit per política de l'editorial
      In this work, we further investigate a new strategy to passivate and contact the rear side of p-type c-Si solar cells based on the laser processing of aluminum oxide (Al2O3)/amorphous silicon carbide (SiCx) stacks before ...
    • Rear contact pattern optimization based on 3D simulations for IBC solar cells with point-like doped contacts 

      Carrió Díaz, David; Ortega Villasclaras, Pablo Rafael; Martín García, Isidro; López Rodríguez, Gema; López González, Juan Miguel; Orpella García, Alberto; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (2014-09)
      Article
      Accés restringit per política de l'editorial
      In this work 3D simulations are used to study the impact of technological parameters on device performance of c-Si interdigitated back-contacted IBC solar cells with point-like doped contacts. In these cells, the highly-doped ...
    • Recovery of indium-tin-oxide/silicon heterojunction solar cells by thermal annealing 

      Morales Vilches, Ana Belén; Voz Sánchez, Cristóbal; Colina Brito, Mónica Alejandra; López Rodríguez, Gema; Martín García, Isidro; Ortega Villasclaras, Pablo Rafael; Orpella García, Alberto; Alcubilla González, Ramón (2014-01-31)
      Article
      Accés restringit per política de l'editorial
      The emitter of silicon heterojunction solar cells consists of very thin hydrogenated amorphous silicon layers deposited at low temperature. The high sheet resistance of this type of emitter requires a transparent conductive ...
    • Silicon nitride layers for DopLa-IBC solar cells 

      Méndez Puertas, Jesús A.; Martín García, Isidro; López Rodríguez, Gema; Ortega Villasclaras, Pablo Rafael; Orpella García, Alberto; Alcubilla González, Ramón (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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      In this work, we report on the development of silicon nitride (SiNx) layers to be applied to crystalline silicon high-efficiency solar cells. In particular, our research group has developed the concept of Doped by Laser ...
    • Silicon solar cells with heterojunction emitters and laser processed base contacts 

      Jin, Chen; Martín García, Isidro; López Rodríguez, Gema; Harrison, S.; Masmitjà Rusiñol, Gerard; Ortega Villasclaras, Pablo Rafael; Alcubilla González, Ramón (Elsevier, 2017)
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      In this work, we report on a novel structure of Interdigitated Back-Contacted (IBC) solar cells on c-Si p-type substrates that combines laser processed homojunction base contacts and silicon heterojunction ...
    • Strategies for high fill factor and open-circuit voltage in low-doped c-Ge TPV cells with partially contacted surfaces using 3D simulations 

      Gamel, Mansur Mohammed Ali; Shojaei, David; López Rodríguez, Gema; Garin Escriva, Moises; Martín García, Isidro (2023)
      Comunicació de congrés
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      Dielectric passivated surfaces provide excellent surface recombination properties while point-like contacts are defined to locally extract the current. In this solution, the distance between contacts, or pitch, is critical ...
    • Study of the surface recombination velocity for ultraviolet and visible laser-fired contacts applied to silicon heterojunction solar cells 

      Morales Vilches, Ana Belén; Voz Sánchez, Cristóbal; Colina Brito, Mónica Alejandra; Muñoz Martín, D.; Martín García, Isidro; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Molpeceres Alvarez, Carlos; Alcubilla González, Ramón (2015-07-01)
      Article
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      In this study, we investigate the effect of the laser-firing process on the back surface passivation of p-type silicon heterojunction solar cells. For that purpose, two different nanosecond laser sources radiating at ...
    • Surface passivation and optical characterization of Al2O3/a-SiCx stacks on c-Si substrates 

      López Rodríguez, Gema; Ortega Villasclaras, Pablo Rafael; Voz Sánchez, Cristóbal; Martín García, Isidro; Colina Brito, Mónica Alejandra; Morales Vilches, Ana Belén; Orpella García, Alberto; Alcubilla González, Ramón (2013-11-06)
      Article
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      The aim of this work is to study the surface passivation of aluminum oxide/amorphous silicon carbide (Al2O3/a-SiCx) stacks on both p-type and n-type crystalline silicon (c-Si) substrates as well as the optical characterization ...
    • 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)
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      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 ...
    • Textured PDMS films applied to thin crystalline silicon solar cells 

      Rosell, Arnau; Martín García, Isidro; Garin Escriva, Moises; López Rodríguez, Gema; Alcubilla González, Ramón (2019-12-18)
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      Front surface texturization is a standard procedure used to improve optical properties of photovoltaic devices. In some particular cases, such as when dealing with ultrathin substrates, common texturization techniques can ...