Exploració per autor "Ortega Villasclaras, Pablo Rafael"
Ara es mostren els items 21-40 de 124
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Black silicon solar cells with interdigitated back-contacts achieve 22.1% efficiency
(2015-05-18)
Article
Accés obertThe nanostructuring of silicon surfaces—known as black silicon—is a promising approach to eliminate front-surface reflection in photovoltaic devices without the need for a conventional antireflection coating. This might ... -
Boron diffused emitters passivated with Al2O3 films
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialIn 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 ... -
c-Si photovoltaic arrays
(IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
Text en actes de congrés
Accés obertCrystalline silicon small photovoltaic arrays are shown. Electrical isolation of individual cells and series connection between them to integrate series arrays are discussed. High open circuit voltage values in the range ... -
c-Si solar cells based on laser-processed dielectric films
(2014-09)
Article
Accés restringit per política de l'editorialThis paper shows an innovative and low temperature fabrication technology for crystalline silicon (c-Si) solar cells where the highly-doped regions are punctually defined through laser processed dielectric films. ... -
Células fotovoltaicas con un rendimiento del 20.5%
(Grupo Acorde Comunicación (GAC), 2011-03-01)
Article
Accés restringit per política de l'editorialUn grupo de investigadores de la Universitat Politècnica de Catalunya (UPC) han desarrollado un proceso de fabricación que permite obtener rendimientos de conversión fotovoltaicos del 20,5%. Esto supone una mejora sustancial ... -
“Cold” process for IBC c-Si solar cells fabrication
(Elsevier, 2016)
Comunicació de congrés
Accés obert -
Crystalline silicon solar cells beyond 20% efficiency
(IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
Text en actes de congrés
Accés obert—This paper describes a fabrication process to obtain high efficiency c-Si cells (> 20%) based on the Laser Fired Contact Passivated Emitter Rear Cell (LFC-PERC) concept. Photovoltaic efficiencies beyond 20% have ... -
Deoxyribonucleic acid-based electron selective contact for crystalline silicon solar cells
(Wiley, 2023-02-10)
Article
Accés obertDevelopment of carrier selective contacts for crystalline silicon solar cells has been recently of great interest toward the further expansion of silicon photovoltaics. The use of new electron and hole selective layers has ... -
Deposition and characterisation of sputtered molybdenum oxide thin films with hydrogen atmosphere
(2021-10)
Article
Accés obertSputtered films of reduced molybdenum oxide (MoOx) with a molybdenum trioxide target in different pressures and atmospheres were deposited in varying temperatures. Compositional, optic, and electric characteristics of the ... -
DISPOSITIUS I TECNOLOGIES (Examen 1r quadrimestre)
(Universitat Politècnica de Catalunya, 2001-01-12)
Examen
Accés restringit a la comunitat UPC -
DISPOSITIUS I TEGNOLOGIES (Examen 1r quadrimestre)
(Universitat Politècnica de Catalunya, 2004-01-31)
Examen
Accés restringit a la comunitat UPC -
DISPOSITIUS I TEGNOLOGIES (Examen 1r quadrimestre)
(Universitat Politècnica de Catalunya, 2004-01-31)
Examen
Accés restringit a la comunitat UPC -
DopLa solar cells with texturized front surface
(Elsevier, 2016)
Text en actes de congrés
Accés obertIn this work, we report on improving efficiency of DopLa cells fabricated on p-type substrates. This type of solar cells has all the highly-doped regions based on laser doping from dielectric films resulting in a very ... -
Effect of permanent dipole layers in the electrical characteristics of electronic devices and solar cells
(2019)
Comunicació de congrés
Accés obert -
Effect of the thickness of amorphous silicon carbide interlayer on the passivation of c-Ge surface by aluminium oxide films
(Elsevier, 2022-07)
Article
Accés restringit per política de l'editorialSurface passivation is of paramount importance in photovoltaic devices based on high-quality crystalline absorbers such as crystalline germanium (c-Ge). In this work, we report on the surface passivation of p-type c-Ge by ... -
Electron selective contacts based on Al2O3/TiO2/ZnO stacks for crystalline silicon solar cells
(2018)
Comunicació de congrés
Accés restringit per política de l'editorialIn 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 ... -
Emitter formation using laser doping technique on n- and p-type c-Si substrates
(2015-05-01)
Article
Accés obertIn this work laser doping technique is used to create highly-doped regions defined in a point-like structure to form n+/p and p+/n junctions applying a pulsed Nd-YAG 1064 nm laser in the n ... -
Enabling silicon-on-silicon photonics with pedestalled Mie resonators
(2018-07-19)
Article
Accés obertHigh-refractive-index Mie resonators are regarded as promising building blocks for low-loss all-dielectric nanophotonic applications. To avoid the otherwise excessive damping and loss of symmetry such devices typically ... -
Examen Final
(Universitat Politècnica de Catalunya, 2021-01-05)
Examen
Accés restringit a la comunitat UPC -
Examen Final
(Universitat Politècnica de Catalunya, 2022-01-07)
Examen
Accés restringit a la comunitat UPC
