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García Hernansanz, Rodrigo ; García Hemme, Eric ; Montero Álvarez, Daniel ; Prado Millán, Álvaro del ; Olea Ariza, Javier ; San Andres Serrano, Enrique ; Mártil de la Plaza, Ignacio ; González Díaz, Germán | Institute of Electrical and Electronics and Engineers (IEEE) | 2016We have deposited intrinsic amorphous silicon (a-Si:H) using the electron cyclotron resonance (ECR) chemical vapor deposition technique in order to analyze the a-Si:H/c-Si heterointerface and assess the possible application in heterojunction wit[...]texto impreso
Pérez, E. ; Dueñas, S. ; Castán, H. ; García, H. ; Bailón, L. ; Montero, Daniel ; García Hernansanz, Rodrigo ; García Hemme, Eric ; Olea Ariza, Javier ; González Díaz, Germán | American Institute of Physics | 2015-12-28The energy levels created in supersaturated n-type silicon substrates with titanium implantation in the attempt to create an intermediate band in their band-gap are studied in detail. Two titanium ion implantation doses (1013 cm-2 and 1014 cm-2)[...]texto impreso
Mártil de la Plaza, Ignacio ; García Hemme, Eric ; García Hernansanz, Rodrigo ; González Díaz, Germán ; Olea Ariza, Javier ; Prado Millán, Álvaro del | Hindawi Publishing Corporation | 2013In the framework of the third generation of photovoltaic devices, the intermediate band solar cell is one of the possible candidates to reach higher efficiencies with a lower processing cost. In this work, we introduce a novel processing method [...]texto impreso
Garcia, Hector ; Castán, Helena ; Dueñas, Salvador ; Bailón, Luis ; García Hernansanz, Rodrigo ; Olea Ariza, Javier ; Prado Millán, Álvaro del ; Mártil de la Plaza, Ignacio | Springer | 2016-07-16A complete electrical characterization of hydrogenated amorphous silicon layers (a-Si:H) deposited on crystalline silicon (c-Si) substrates by electron cyclotron resonance chemical vapor deposition (ECR-CVD) was carried out. These structures are[...]texto impreso
Mártil de la Plaza, Ignacio ; García Hemme, Eric ; García Hernansanz, Rodrigo ; González Díaz, Germán ; Olea Ariza, Javier ; Prado Millán, Álvaro del | IOP publishing ltd | 2013-04-03We investigated the electrical transport properties of ultraheavily Ti-implanted silicon layers subsequently pulsed laser melted (PLM). After PLM, the samples exhibit anomalous electrical behaviour in sheet resistance and Hall mobility measureme[...]texto impreso
Mártil de la Plaza, Ignacio ; García Hemme, Eric ; García Hernansanz, Rodrigo ; González Díaz, Germán ; Olea Ariza, Javier ; Prado Millán, Álvaro del | IEEE | 2013We have fabricated titanium and vanadium supersaturated silicon layers on top of a silicon substrate by means of ion implantation and pulsed laser melting processes. This procedure has proven to be suitable to fabricate an intermediate band (IB)[...]texto impreso
Mártil de la Plaza, Ignacio ; García Hemme, Eric ; García Hernansanz, Rodrigo ; González Díaz, Germán ; Olea Ariza, Javier ; Prado Millán, Álvaro del | Amer Inst Physics | 2013-07-15We have analyzed the spectral sub-bandgap photoresponse of silicon (Si) samples implanted with vanadium (V) at different doses and subsequently processed by pulsed-laser melting. Samples with V concentration clearly above the insulator-metal tra[...]texto impreso
Mártil de la Plaza, Ignacio ; García Hemme, Eric ; García Hernansanz, Rodrigo ; González Díaz, Germán ; Olea Ariza, Javier ; Prado Millán, Álvaro del | IEEE | 2013Hydrogenated amorphous silicon thin films were deposited using a high pressure sputtering (HPS) system. In this work, we have studied the composition and optical properties of the films (band-gap, absorption coefficient), and their dependence wi[...]texto impreso
García Hemme, Eric ; Montero Álvarez, Daniel ; García Hernansanz, Rodrigo ; Olea Ariza, Javier ; Mártil de la Plaza, Ignacio ; González Díaz, Germán | IOP publishing ltd | 2016-07-13We report the observation of the insulator-to-metal transition in crystalline silicon samples supersaturated with vanadium. Ion implantation followed by pulsed laser melting and rapid resolidification produce high quality single-crystalline sili[...]texto impreso
Mártil de la Plaza, Ignacio ; García Hemme, Eric ; García Hernansanz, Rodrigo ; González Díaz, Germán ; Olea Ariza, Javier ; Prado Millán, Álvaro del | American Institute of Physics | 2012Ti supersaturated Si layers with two different thicknesses have been obtained on the top of a Si substrate by means of ion implantation and pulsed laser melting processes. Time-of-flight Secondary Ion Mass spectrometry (ToF-SIMS) measurements sh[...]texto impreso
García Hernansanz, Rodrigo ; García Hemme, Eric ; Montero Álvarez, Daniel ; Olea Ariza, Javier ; San Andres Serrano, Enrique ; Prado Millán, Álvaro del ; Ferrer, F. J. ; Mártil de la Plaza, Ignacio ; González Díaz, Germán | IOP Publishing | 2016-03Amorphous silicon thin films were deposited using the high pressure sputtering (HPS) technique to study the influence of deposition parameters on film composition, presence of impurities, atomic bonding characteristics and optical properties. An[...]texto impreso
Mártil de la Plaza, Ignacio ; García Hemme, Eric ; García Hernansanz, Rodrigo ; González Díaz, Germán ; Olea Ariza, Javier ; Prado Millán, Álvaro del | Elsevier Science SA | 2012-08-31Si samples implanted with very high Ti doses and subjected to Pulsed-Laser Melting (PLM) have been electrically analyzed in the scope of a two-layer model previously reported based on the Intermediate Band (IB) theory. Conductivity and Hall effe[...]texto impreso
Esta tesis doctoral se enmarca dentro de la tecnología fotovoltaica basada en silicio. El silicio es un material semiconductor con unas propiedades y un desarrollo tecnológico tal que le han convertido en el material más importante de la industr[...]texto impreso
García Hernansanz, Rodrigo ; Cimas Cuevas, María Rosa ; Fernández Saez, Pablo Alfredo ; Diego Martínez, Raúl de ; García Hemme, Eric ; Lucía Mulas, María Luisa ; Pastor Pastor, David ; Sánchez Balmaseda, Margarita María | 2021-02-02Este proyecto plantea una mejora de la actividad docente en la asignatura de Fundamentos de Electricidad y Electrónica que se cursa simultáneamente en el primer curso de los grados en Ingeniería Informática, Ingeniería del Software e Ingeniería [...]texto impreso
García Hemme, Eric ; García Hernansanz, Rodrigo ; Olea Ariza, Javier ; Pastor Pastor, David ; Prado Millán, Álvaro del ; Mártil de la Plaza, Ignacio ; González Díaz, Germán | IOP publishing ltd | 2015-02-25This paper presents the results for the transverse conductance across a bilayer formed by supersaturating with diverse transition metals a thin layer of a silicon wafer. The layer is formed by ion implantation and annealed by pulsed laser meltin[...]
