Electronic structure and carrier mobility in graphdiyne sheet and nanoribbons: Theoretical predictions

  • Long M
  • Tang L
  • Wang D
 et al. 
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Abstract

Using density functional theory coupled with Boltzmann transport equation with relaxation time approximation, we investigate the electronic structure and predict the charge mobility for a new carbon allotrope, the graphdiyne for both the sheet and nanoribbons. It is shown that the graphdiyne sheet is a semiconductor with a band gap of 0.46 eV. The calculated in-plane intrinsic electron mobility can reach the order of 10(5) cm(2)/(V s) at room temperature, while the hole mobility is about an order of magnitude lower.

Author-supplied keywords

  • electron beam induced deposition
  • gold nanocones
  • ion milling
  • nanostructures
  • near-field enhancement
  • near-field scanning optical microscopy
  • tip-enhanced Raman spectroscopy

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