Browsing by Author "Pallares, J"

Now showing items 1-6 of 6

    • Analysis of conduction mechanisms in annealed n-Si1-xCx:H/p-crystalline Si heterojunction diodes for different doping concentrations 

      Marsal, L F; Pallares, J; Correig, X; Orpella García, Alberto; Bardés Llorensí, Daniel; Alcubilla González, Ramón (American Institute of Physics (AIP), 1999-01)
      Article
      Restricted access - publisher's policy
      We fabricated and characterized annealed n-type amorphous Si1-xCx on p-type crystalline silicon heterojunction diodes with three different base doping concentrations: NA~1016,¿1018, and 1020¿cm-3. The conduction mechanisms ...

    • Colloidal crystal wires 

      Tymczenko, M; Marsal, L E; Todorov Trifonov, Trifon; Rodriguez, Isabelle; Ramiro-Manzano, F; Pallares, J; Rodríguez Martínez, Ángel; Alcubilla González, Ramón; Meseguer, F (2008-06-18)
      Article
      Restricted access - publisher's policy
      Several configurations of colloidal wires are obtained by infiltration of charge-stabilized polystyrene spheres into cylindrical pores of a silicon membrane (see figure). As channel dimensions are comparable to those of ...

    • Distribution of recombination currents in the space charge of heterostructure bipolar devices 

      Pallares, J; Marsal, L F; Correig, X; Calderer Cardona, Josep; Alcubilla González, Ramón (1998-01)
      Article
      Open Access
      This paper addresses the problem of the space charge region Shockley-Read-Hall (SRH) recombination currents in heterojunctions with one noncrystalline side. A formulation which generalizes previous works is discussed. The ...

    • Macroporous silicon: a versatile material for 3D structure fabrication 

      Todorov Trifonov, Trifon; Rodríguez Martínez, Ángel; Marsal, L F; Pallares, J; Alcubilla González, Ramón (2008-02)
      Article
      Restricted access - publisher's policy
      This work focuses on the fabrication of three-dimensional (3D) microstructures by electrochemical etching of n-type silicon. We exploit the possibility of modulating the pore diameter along the growing direction to produce ...

    • Mid-IR characterization of photonic bands in 2D photonic crystals on silicon 

      Kral, Z; Ferré Burrull, José; Todorov Trifonov, Trifon; Marsal, Lf; Rodríguez Martínez, Ángel; Pallares, J; Alcubilla González, Ramón (2008-09-30)
      Article
      Restricted access - publisher's policy
      We report the characterization of two-dimensional silicon photonic crystals using angular-dependent reflectivity in the mid-IR. The photonic crystals are obtained by electrochemical etching of an ordered array of holes ...

    • 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
      Restricted access - publisher's policy
      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 ...