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Band Gap Modulated by Electronic Superlattice in Blue Phosphorene

Journal Article


Abstract


  • Exploring stable two-dimensional materials

    with appropriate band gaps and high carrier mobility is

    highly desirable due to the potential applications in

    optoelectronic devices. Here, the electronic structures of

    phosphorene on a Au(111) substrate are investigated by

    scanning tunneling spectroscopy, angle-resolved photoemission

    spectroscopy (ARPES), and density functional

    theory (DFT) calculations. The substrate-induced phosphorene

    superstructure gives a superlattice potential,

    leading to a strong band folding effect of the sp band of

    Au(111) on the band structure. The band gap could be clearly identified in the ARPES results after examining the folded sp

    band. The value of the energy gap (∼1.1 eV) and the high charge carrier mobility comparable to that of black phosphorus,

    which is engineered by the tensile strain, are revealed by the combination of ARPES results and DFT calculations.

    Furthermore, the phosphorene layer on the Au(111) surface displays high surface inertness, leading to the absence of

    multilayer phosphorene. All these results suggest that the phosphorene on Au(111) could be a promising candidate, not

    only for fundamental research but also for nanoelectronic and optoelectronic applications

Authors


  •   Zhuang, Jincheng (external author)
  •   Liu, Chen (external author)
  •   Gao, Qian (external author)
  •   Liu, Yani (external author)
  •   Feng, Haifeng
  •   Xu, Xun
  •   Wang, Jiaou (external author)
  •   Zhao, Jijun (external author)
  •   Dou, Shi Xue
  •   Hu, Zhenpeng (external author)
  •   Du, Yi

Publication Date


  • 2018

Citation


  • Zhuang, J., Liu, C., Gao, Q., Liu, Y., Feng, H., Xu, X., Wang, J., Zhao, J., Dou, S. Xue., Hu, Z. & Du, Y. (2018). Band Gap Modulated by Electronic Superlattice in Blue Phosphorene. ACS Nano, 12 (5), 5059-5065.

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3143

Number Of Pages


  • 6

Start Page


  • 5059

End Page


  • 5065

Volume


  • 12

Issue


  • 5

Place Of Publication


  • United States

Abstract


  • Exploring stable two-dimensional materials

    with appropriate band gaps and high carrier mobility is

    highly desirable due to the potential applications in

    optoelectronic devices. Here, the electronic structures of

    phosphorene on a Au(111) substrate are investigated by

    scanning tunneling spectroscopy, angle-resolved photoemission

    spectroscopy (ARPES), and density functional

    theory (DFT) calculations. The substrate-induced phosphorene

    superstructure gives a superlattice potential,

    leading to a strong band folding effect of the sp band of

    Au(111) on the band structure. The band gap could be clearly identified in the ARPES results after examining the folded sp

    band. The value of the energy gap (∼1.1 eV) and the high charge carrier mobility comparable to that of black phosphorus,

    which is engineered by the tensile strain, are revealed by the combination of ARPES results and DFT calculations.

    Furthermore, the phosphorene layer on the Au(111) surface displays high surface inertness, leading to the absence of

    multilayer phosphorene. All these results suggest that the phosphorene on Au(111) could be a promising candidate, not

    only for fundamental research but also for nanoelectronic and optoelectronic applications

Authors


  •   Zhuang, Jincheng (external author)
  •   Liu, Chen (external author)
  •   Gao, Qian (external author)
  •   Liu, Yani (external author)
  •   Feng, Haifeng
  •   Xu, Xun
  •   Wang, Jiaou (external author)
  •   Zhao, Jijun (external author)
  •   Dou, Shi Xue
  •   Hu, Zhenpeng (external author)
  •   Du, Yi

Publication Date


  • 2018

Citation


  • Zhuang, J., Liu, C., Gao, Q., Liu, Y., Feng, H., Xu, X., Wang, J., Zhao, J., Dou, S. Xue., Hu, Z. & Du, Y. (2018). Band Gap Modulated by Electronic Superlattice in Blue Phosphorene. ACS Nano, 12 (5), 5059-5065.

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3143

Number Of Pages


  • 6

Start Page


  • 5059

End Page


  • 5065

Volume


  • 12

Issue


  • 5

Place Of Publication


  • United States