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

2 Citations (Scopus)


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
Issue number3
Publication statusPublished - 9 Mar 2020


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

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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