Now showing items 1-5 of 5

    • A two dimensional KTiOPO4 photonic crystal grown using a macroporous silicon template 

      Peña Revellez, Alexandra; Finizio, Sergio Di; Todorov Trifonov, Trifon; Carvajal, Joan Josep; Aguiló Díaz, Magdalena; Pallarès Marzal, Josep; Rodríguez Martínez, Ángel; Alcubilla González, Ramón; Marsal Garví, Lluís Francesc; Diaz, Francesc; Martorell Pena, Jordi (2006-09)
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      2D KTiOPO4 photonic crystals are fabricated using a silicon membrane of air holes as a template. Columns of KTiOPO4 are grown by liquid-phase epitaxy from a substrate into such air holes. The crystallographic orientation ...
    • Optical properties of 3D macroporous silicon structures 

      Garin Escriva, Moises; Todorov Trifonov, Trifon; Rodríguez Martínez, Ángel; Marsal Garví, Lluís Francesc; Alcubilla González, Ramón (2008-04-15)
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      We study the optical properties of three-dimensional (3D) microstructures fabricated by electrochemical etching of macroporous silicon with modulated pore diameter. Optical measurements along the pore axis reveal photonic ...
    • 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)
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      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 ...
    • Space charge recombination in p-n junctions with a discrete and continous trap distribution 

      Pallarès Marzal, Josep; Marsal Garví, Lluís Francesc; Correig, Xavier; Calderer Cardona, Josep; Alcubilla González, Ramón (1997-01)
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      Space charge Shockley-Read-Hall recombination currents in the presence of discrete or continuous distributions of recombination centres are analysed. For a single level trap, depending on its position inside the forbidden ...
    • 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)
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      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. ...