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- W2014977999 abstract "Abstract We report here the field emission studies of a layered WS 2 -RGO composite at the base pressure of ~1 × 10 −8 mbar. The turn on field required to draw a field emission current density of 1 μA/cm 2 is found to be 3.5, 2.3 and 2 V/μm for WS 2 , RGO and the WS 2 -RGO composite respectively. The enhanced field emission behavior observed for the WS 2 -RGO nanocomposite is attributed to a high field enhancement factor of 2978, which is associated with the surface protrusions of the single-to-few layer thick sheets of the nanocomposite. The highest current density of ~800 μA/cm 2 is drawn at an applied field of 4.1 V/μm from a few layers of the WS 2 -RGO nanocomposite. Furthermore, first-principles density functional calculations suggest that the enhanced field emission may also be due to an overalp of the electronic structures of WS 2 and RGO, where graphene-like states are dumped in the region of the WS 2 fundamental gap." @default.
- W2014977999 created "2016-06-24" @default.
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- W2014977999 date "2013-11-21" @default.
- W2014977999 modified "2023-10-16" @default.
- W2014977999 title "Superior Field Emission Properties of Layered WS2-RGO Nanocomposites" @default.
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- W2014977999 doi "https://doi.org/10.1038/srep03282" @default.
- W2014977999 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3836036" @default.
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