title: Enhanced field-emission behavior of layered MoS₂ sheets.
abstract: Field emission studies are reported for the first time on layered MoS₂ sheets at the base pressure of ∼1 × 10⁻⁸ mbar. The turn-on field required to draw a field emission current density of 10 μA/cm² is found to be 3.5 V/μm for MoS₂ sheets. The turn-on values are found to be significantly lower than the reported MoS₂ nanoflowers, graphene, and carbon nanotube-based field emitters due to the high field enhancement factor (∼1138) associated with nanometric sharp edges of MoS₂ sheet emitter surface. The emission current-time plots show good stability over a period of 3 h. Owing to the low turn-on field and planar (sheetlike) structure, the MoS₂ could be utilized for future vacuum microelectronics/nanoelectronic and flat panel display applications.
authors: Center for Advanced Studies in Material Science and Condensed Matter Physics, Department of Physics, University of Pune, Pune 411007, India.
authors: Ranjit V
authors: RV
authors: Kashid
authors: Dattatray J
authors: DJ
authors: Late
authors: Stanley S
authors: SS
authors: Chou
authors: Yi-Kai
authors: YK
authors: Huang
authors: Mrinmoy
authors: M
authors: De
authors: Dilip S
authors: DS
authors: Joag
authors: Mahendra A
authors: MA
authors: More
authors: Vinayak P
authors: VP
authors: Dravid
keywords: MoS2; field emission; field enhancement factors; layered materials