Negative differential resistance effect of blue phosphorene-graphene heterostructure device

Si Cong Zhu, Tie Yi Hu, Kai Ming Wu, Chi Hang Lam, Kai Lun Yao, Hua Rui Sun, Cho Tung Yip

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

We report on the electrical transport properties of new graphene/blue phosphorene heterostructure devices by density functional theory (DFT) within the non-equilibrium Green’s function (NEGF) approach. From the results, it is found that the devices with different length of contacts layers show semiconducting nature. The integrated contacted length of graphene/blue phosphorene two-layer device shows the best conductivity under a bias voltage. The negative differential resistance effect (NDR) is also found in the current-voltage curve of all the graphene/blue phosphorene devices. Transport characteristics can be explained by the eigenvalues of self-consistent Hamiltonian (MPSH). The results show that the device is fabricated from graphene/blue phosphorous and has good electrical conductivity. These interesting features will be useful for future electronic products.

Original languageEnglish
Article number035005
JournalJournal of Physics Communications
Volume4
Issue number3
DOIs
Publication statusPublished - 9 Mar 2020

Keywords

  • Blue phosphorene
  • First principles
  • Graphene
  • Heterostructure
  • Negative differential resistance

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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