Pasar al contenido principal
dd
CIC nanoGUNE
  • en
  • es
  • eu

User account menu

  • Iniciar sesión

Main Menu ES

  • nanoGUNE
    • De un vistazo
    • Organización y Financiación
    • Personas
    • Únete
    • Vive
    • Sala de prensa
    • nanoPeople
  • Investigación
    • Investigación
    • Publicaciones
    • Proyectos
    • Servicios externos
  • Transferencia
    • Transferencia
    • Start-ups
    • Cartera PI
    • Industry collaborative research positions
    • Strategic lines
    • Servicios externos
    • Noticias
  • Formación
    • Master projects
    • Bachelor Final Projects
    • Prácticas de verano
    • Programa de doctorado
  • Sociedad

User menu

  • Iniciar sesión
  1. Inicio
  2. New tool for non-invasive quality control of graphene devices

New tool for non-invasive quality control of graphene devices

06/03/2016

Researchers from the Nanooptics group at CIC nanoGUNE in collaboration with colleagues at ICFO - The Institute of Photonic Sciences (Catalunya) developed a new non-invasive room-temperature technique for graphene device characterization. This work has been funded by the EC Graphene Flagship and was recently reported in Nature Communications.

 

Illustration of the near-field photocurrent technique

nanoGUNE researchers Pablo Alonso González and Ikerbasque Prof. Rainer Hillenbrand, together with ICFO researchers Achim Woessner, Mark B. Lundeberg, Gabriele Navickaite, Davide Janner, ICREA Prof. Valerio Pruneri and ICREA Prof. Frank Koppens (leader oft the international collaboration), developed a noninvasive technique for efficient characterization of the optoelectronic properties of graphene devices at the nanoscale.

Large-scale integration of electronic and optoelectronic graphene devices is becoming a reality. However, to achieve a high device performance, nanoscale and atomic scale imperfections such as grain boundaries, charge density inhomogeneties or additional doping near metal contacts need to be minimized or even eliminated.

The current techniques used for nanoscale graphene device characterization are a major challenge, as most of them are invasive, require specifically designed device structures, can only image small areas, or lack nanometer-scale resolution.

Now, the team of researchers developed infrared photocurrent nanoscopy. This technique combines scanning near-field infrared nanoscopy with electrical read-out, allowing infrared photocurrent mapping at length scales of tens of nanometres. It enables non-invasive and nanoscale probing of the electrical and optical properties of graphene devices at room temperature.

The new technique opens a path for easy, non-invasive and efficient optoelectronic characterization of graphene devices to be integrated in electronic and optoelectronic technologies.

  • whatsapp
  • facebook
  • twitter
  • linkedin
  • print

Noticias relacionadas

  • 06/05/2025

    NanoGUNE inicia la construcción de la Torre Cuántica -The Quantum Tower-

  • 01/04/2025

    Donostia, capital de la espintrónica y la orbitrónica

  • 14/02/2025

    Review Article Highlights 25 Years of Modern Near-field Optical Nanoimaging

  • 11/02/2025

    Scientists synthesize 2D polyaniline crystal with unique metallic out-of-plane conductivity

  • 07/02/2025

    Emakumeak Zientzian subraya el poder de cada pequeña acción hacia la igualdad

  • CIC nanoGUNE
  • Tolosa Hiribidea, 76
  • E-20018 Donostia / San Sebastian
  • +34 943 574 000 · nano@nanogune.eu
  • Facebook Twitter Youtube Linkedin Instagram Subscribe to our Newsletter

Menú pie principal

  • nanoGUNE
  • Investigación
  • Transferencia
  • Formación
  • Sociedad
  • nanoPeople

Menú pie servicios

  • Servicios externos
  • Publicaciones
  • Seminarios
  • Únete
  • Sala de prensa
  • Perfil del contratante
  • Corporate Compliance

Menú pie grupos

  • Nanomagnetismo
  • Nanoóptica
  • Autoensamblado
  • Nanobiosistemas
  • Nanodispositivos
  • Microscopía Electrónica

Menú pie grupos 2

  • Teoría
  • Nanomateriales
  • Microscopía de Detección Cuántica
  • Nanoingeniería
  • Hardware Cuántico

Funded by

  • EJ/GV
  • Diputación
  • FEDER
  • FEDER
  • Ministerio de Ciencia e Innovación

Member of

  • BRTA
  • SOMM

Distinctions

  • Distinción de Excelencia María de Maeztu 2022-2025
  • Excellence Research
  • UNE-166002

Menú legales

  • Accesibilidad
  • Aviso Legal
  • Política de privacidad
  • Política de cookies
  • Política de confidencialidad
by ACC