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A Facile Way to Fabricate High-Performance Solution-Processed n-MoS/p-MoS Bilayer Photodetectors

Nanoscale Research Letters, ISSN: 1556-276X, Vol: 10, Issue: 1, Page: 1-7
2015
  • 24
    Citations
  • 0
    Usage
  • 31
    Captures
  • 0
    Mentions
  • 9
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    24
  • Captures
    31
  • Social Media
    9
    • Shares, Likes & Comments
      9
      • Facebook
        9

Article Description

Two-dimensional (2D) material has many advantages including high carrier mobilities and conductivity, high optical transparency, excellent mechanical flexibility, and chemical stability, which made 2D material an ideal material for various optoelectronic devices. Here, we developed a facile method of preparing MoS nanosheets followed by a facile liquid exfoliation method via ethyl cellulose-assisted doping and utilizing a plasma-induced p-doping approach to generate t effectively the partially oxided MoS (p-MoS) nanosheets from the pristine n-type nanosheets. Moreover, an n-p junction type MoS photodetector device with the built-in potentials to separate the photogenerated charges is able to significantly improved visible light response. We have fabricated photodetector devices consisting of a vertically stacked indium tin oxide (ITO)/pristine n-type MoS nanosheets/p-MoS/Ag structure, which exhibit reasonably good performance illumination, as well as high current values in the range of visible wavelength from 350 to 600 nm. We believe that this work provides important scientific insights for photoelectric response properties of emerging atomically layered 2D materials for photovoltaic and other optoelectronic applications.

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