Effect of compression on the electronic, optical and transport properties of MoS2/graphene-based junctions

Mahdi Ghorbani-Asl, Paul D. Bristowe, K. Koziol, Thomas Heine, Agnieszka Kuc

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Electronic, optical and transport properties of the MoS2/graphene heterostructure have been investigated as function of applied uniaxial compression normal to the interface plane using first principles calculations and a non-equilibrium Green's function approach. The results show that a small compressive load (∼1 GPa) can open up the band gap (∼12 meV), reduce the optical absorption coefficient (∼7%), redshift the absorption spectrum, and create non-Ohmic I-V characteristics that depend on the magnitude of applied bias. This suggests that graphene/MoS2 heterostructure can be suitable for electromechanical and photomechanical devices where the electronic, optical and transport properties can be tuned by an appropriate application of bias and mechanical deformations.

Original languageEnglish
Article number025018
Journal2D Materials
Volume3
Issue number2
DOIs
Publication statusPublished - 2016 Apr 29

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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