Now showing items 1-4 of 4

    • Advanced graphene-based transparent conductive electrodes for photovoltaic applications 

      Fernández, Susana; Boscá, Alberto; Pedrós, Jorge; Inés Ortigosa, Andrea; Fernández Vallejo, Montserrat Upna; Arnedo Gil, Israel Upna; González, José Pablo (MDPI, 2019)   Artículo / Artikulua  OpenAccess
      New architectures of transparent conductive electrodes (TCEs) incorporating graphene monolayers in different configurations have been explored with the aim to improve the performance of silicon-heterojunction (SHJ) cell ...
    • Mapping the conductivity of graphene with electrical resistance tomography 

      Cultrera, Alessandro; Serazio, Danilo; Zurutuza, Amaia; Centeno, Alba; Txoperena, Ohiana; Etayo Salinas, David Upna; Cordón, Álvaro; Redo Sánchez, Albert; Arnedo Gil, Israel Upna; Ortolano, Massimo; Callegaro, Luca (Nature Research, 2019)   Artículo / Artikulua  OpenAccess
      Electronic applications of large-area graphene films require rapid and accurate methods to map their electrical properties. Here we present the first electrical resistance tomography (ERT) measurements on large-area graphene ...
    • Optical fibre sensors using graphene-based materials: a review 

      Hernáez Sáenz de Zaitigui, Miguel Upna; Ruiz Zamarreño, Carlos Upna; Melendi Espina, Sonia; Bird, Liam; Mayes, Andrew; Arregui San Martín, Francisco Javier Upna (MDPI, 2017)   Artículo / Artikulua  OpenAccess
      Graphene and its derivatives have become the most explored materials since Novoselov and Geim (Nobel Prize winners for Physics in 2010) achieved its isolation in 2004. The exceptional properties of graphene have attracted ...
    • Tunable beam steering enabled by graphene metamaterials 

      Orazbayev, Bakhtiyar Upna; Beruete Díaz, Miguel Upna; Khromova, Irina Upna (Optical Society of America, 2016)   Artículo / Artikulua  OpenAccess
      We demonstrate tunable mid-infrared (MIR) beam steering devices based on multilayer graphene-dielectric metamaterials. The effective refractive index of such metamaterials can be manipulated by changing the chemical potential ...