Exploració per autor "Kozyreff, Gregory"

Ara es mostren els items 1-4 de 4

    • Cavity-controlled radiative recombination of excitons in thin-film solar cells 

      Vuong, Luat T.; Kozyreff, Gregory; Betancur, Rafael; Martorell Pena, Jordi (2009-12-07)
      Article
      Accés obert
      We study the performance of photovoltaic devices when controlling the exciton radiative recombination time. We demonstrate that when high-quantum-yield fluorescent photovoltaic materials are placed within an optical cavity, ...

    • Ergodic Light Propagation in a Half-Cylinder Photonic Plate for Optimal Absorption in Perovskite Solar Cells 

      Martínez-Denegrí Sánchez, Guillermo; Colodrero Perez, Silvia; Liu, Quan; Toudert, Johann; Kozyreff, Gregory; Martorell Pena, Jordi (2019-05-17)
      Article
      Accés obert
      In an optical medium slab, a randomization of the interfaces will lead to an ergodic light propagation, implying a kind of light trapping that sets an upper limit for a broadband absorption enhancement factor. However, in ...

    • Intermittent chaos for ergodic light trapping in a photonic fiber plate 

      Mariano, Marina; Kozyreff, Gregory; Gerling Sarabia, Luis Guillermo; Romero Gómez, Pablo; Puigdollers i González, Joaquim; Bravo Abad, Jorge; Martorell, Jordi (2016-12-30)
      Article
      Accés obert
      Extracting the light trapped in a waveguide, or the opposite effect of trapping light in a thin region and guiding it perpendicular to its incident propagation direction, is essential for optimal energetic performance in ...

    • Light coupling into the Whispering Gallery Modes of a fiber array thin film solar cell for fixed partial Sun tracking 

      Mariano, Marina; Rodriguez, Francisco J.; Romero Gómez, Pablo; Kozyreff, Gregory; Martorell Pena, Jordi (MACMILLAN PUBLISHERS LIMITED, 2014-05-14)
      Article
      Accés obert
      We propose the use of whispering gallery mode coupling in a novel configuration based on implementing a thin film cell on the backside of an array of parallel fibers. We performed numerical calculations using the parameters ...