Graphene and carbon nanotubes

Characterization of D graphene or other 2D molecules with one or few atom layers. Basically, it’s sp2 hybridized carbon atoms. Carbon nanotubes are hollow structures with the walls formed by one-atom-thick sheets of graphene.

Graphene is the first two-dimensional (2D) atomic crystal available to us. A large number of its material parameters—such as mechanical stiffness, strength and elasticity, very high electrical and thermal conductivity, and many others – are supreme.


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Techniques used with the SuperK to characterize graphene

  • Fluorescence quenching microscopy
  • Scanning probe microscopy (SNOM/NSOM/STM/AFM)
  • Absorption spectroscopy/microscopy
  • Raman spectroscopy
  • Photoluminescence (PL) & photoluminescence excitation (PLE)
  • Surface plasmon resonance (SPR) adsorption spectroscopy
  • Rayleigh imaging and spectroscopy


The work listed below all use the SuperK supercontinuum laser from NKT Photonics to characterize graphene or carbon nanotubes.