Exploració per autor "Todorov Trifonov, Trifon"
Ara es mostren els items 38-50 de 50
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Semiconducting P3HT microstructures: fibres and tubes obtained from macroporous silicon template
Palacios, R; Formentin, P; Todorov Trifonov, Trifon; Estrada del Cueto, Magali; Alcubilla González, Ramón; Pallares, J; Marsal, L F (2008-10)
Article
Accés restringit per política de l'editorialMicrotubes and microfibres composed of poly(3-hexylthiophene) (P3HT) were fabricated by melt-assisted templates using ordered macroporous silicon. We have studied the influence of the pore depth and the template type on ... -
“Silicon millefeuille” : From a silicon wafer to multiple thin crystalline films in a single step
Hernández García, David; Todorov Trifonov, Trifon; Garin Escriva, Moises; Alcubilla González, Ramón (2013-04-29)
Article
Accés obertDuring the last years, many techniques have been developed to obtain thin crystalline films from commercial silicon ingots. Large market applications are foreseen in the photovoltaic field, where important cost reductions ... -
Single-Step multiple-layers wafer slicing from macroporous silicon
Garin Escriva, Moises; Hernández García, David; Todorov Trifonov, Trifon; Cardador Maza, David; Alcubilla González, Ramón (2013)
Text en actes de congrés
Accés obertThere is a rising interest, from both photovoltaics and microelectronics industry, in wafer thickness reduction. During the last decade, it has been steadily reduced from 350 µm to 180 µm, but benefits are foreseen for ... -
Synthesis of ordered polymer micro and nanostructures via porous templates
Palacios, R.; Formentín, P.; Santos, A.; Todorov Trifonov, Trifon; Pallarés, J.; Alcubilla González, Ramón; Marsal, L. F. (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
Text en actes de congrés
Accés obertThe deposition of specific materials into ordered pores arranged in a regular lattice allows the fabrication of ordered fiber arrays. Polymer micro- and nanofibers using macroporous silicon and nanoporous alumina templates ... -
Template fabrication of 3D metallic microstructures by electrochemical etching and electroplanting
Hernández Díaz, David; Lange, Diego; Todorov Trifonov, Trifon; Garin Escriva, Moises; García Molina, Francisco Miguel; Rodríguez Martínez, Ángel; Alcubilla González, Ramón (2010)
Text en actes de congrés
Accés obertIn this work, we show that macroporous silicon consisting of periodic arrays of etched pores is a feasible alternative for synthesis of 2D and 3d metallic microstructures due to its flexibility in the definition of complex ... -
Templated growth of tungsten oxide micro/nanostructures using aerosol assisted chemical vapour deposition
Blackman, Cs; Correig, X; Katko, V; Mozalev, A; Parkin, I P; Alcubilla González, Ramón; Todorov Trifonov, Trifon (2008-12)
Article
Accés restringit per política de l'editorialPorous anodized alumina (PAA) and macroporous silicon (MS) substrates have been used to template the growth of tungsten oxide via aerosol assisted chemical vapour deposition from the precursor tungsten hexaphenoxide. The ... -
The effect of absorption losses on the optical behaviour of macroporous silicon photonic crystal selective filters
Vega Bru, Didac; Cardador Maza, David; Todorov Trifonov, Trifon; Garin Escriva, Moises; Rodríguez Martínez, Ángel (2016-02-15)
Article
Accés obertThe effect of losses in photonic crystal structures on transmittance and reflectance has been studied by numerical techniques, and compared to fabricated macroporous silicon samples. Material absorption and tolerances of ... -
Thermal emission of macroporous silicon chirped photonic crystals
Garin Escriva, Moises; Todorov Trifonov, Trifon; Hernández García, David; Rodríguez Martínez, Ángel; Alcubilla González, Ramón (2010-09-15)
Article
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Three-dimensional metallo-dielectric selective thermal emitters with high-temperature stability for thermophotovoltaic applications
Garin Escriva, Moises; Hernández García, David; Todorov Trifonov, Trifon; Alcubilla González, Ramón (2015-03-01)
Article
Accés obertSelective thermal emitters concentrate most of their spontaneous emission in a spectral band much narrower than a blackbody. When used in a thermophovoltaic energy conversion system, they become key elements defining both ... -
Tuning the emissivity of 3D macroporous silicon in the mid-infrared
Hernández Díaz, David; Vega Bru, Didac; Garin Escriva, Moises; Todorov Trifonov, Trifon; Rodríguez Martínez, Ángel; Alcubilla González, Ramón (2010)
Text en actes de congrés
Accés obertTailoring the thermal emission of a particular material by using periodic micro-structures has attracted great interest for its potential applications in heating and lighting systems or thermophotovoltaics. […] Metallic ... -
Tuning the shape of macroporous silicon
Todorov Trifonov, Trifon; Garin Escriva, Moises; Rodríguez Martínez, Ángel; Marsal, L F; Alcubilla González, Ramón (2007-10)
Article
Accés restringit per política de l'editorialMacroporous silicon membranes, prepared by photo-electrochemical etching, were subjected to pore widening performed by multiple oxidation/oxide-stripping cycles. We study the dependence of pore cross section and diameter ... -
Vertical hybrid microcavity based on a polymer layer sandwiched between porous silicon photonic crystals
Sychev, F. Yu; Razdolski, E.; Murzina, T. V.; Aktsipetrov, O.A.; Todorov Trifonov, Trifon; Cheylan, S. (2009)
Article
Accés obertA vertical hybrid microcavity is fabricated by sandwiching a polymer layer between distributed Bragg reflectors (DBRs) composed of porous silicon photonic crystals. The DBRs are made by electrochemical etching of Si and ... -
Visible light emission from macroporous Si
Cheylan, Stephanie; Todorov Trifonov, Trifon; Rodríguez Martínez, Ángel; Marsal Garví, Lluís Francesc; Pallarès Marzal, Josep; Alcubilla González, Ramón; Badenes, Gonçal (2006-10)
Article
Accés restringit per política de l'editorialMacroporous silicon structures have been fabricated by electrochemical etching. Such fabrication process is known to result in the presence of a thin microporous Si layer at the walls of the macropores and at the surface. ...