Exploració per autor "Todorov Trifonov, Trifon"Més informacióMés informació

Ara es mostren els items 36-49 de 49

    • Polymer microfibers obtained using porous silicon templates 

      Marsal Garví, Lluís Francesc; Formentín, P.; Palacios, R.; Todorov Trifonov, Trifon; Ferré Burrull, José; Rodríguez Martínez, Ángel; Pallarès Marzal, Josep; Alcubilla González, Ramón (2008)
      Article
      Accés restringit per política de l'editorial
      The deposition of specific materials into ordered pores arranged in a regular lattice allows the fabrication of ordered fiber arrays. Porous silicon is an attractive candidate for use as a template because the porosity and ...

    • 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'editorial
      Microtubes 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 obert
      During 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 obert
      There 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 obert
      The 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 obert
      In 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'editorial
      Porous 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 obert
      The 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
      Accés obert

    • 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 obert
      Selective 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 obert
      Tailoring 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'editorial
      Macroporous 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 obert
      A 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'editorial
      Macroporous 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. ...