Enhanced Field‐Emission Behavior of Layered MoS2 Sheets. Issue 16 (21st February 2013)

• Record Type: Journal Article
• Authors: Kashid, Ranjit V.; Late, Dattatray J.; Chou, Stanley S.; Huang, Yi‐Kai; De, Mrinmoy; Joag, Dilip S.; More, Mahendra A.; Dravid, Vinayak P.
• Is Part Of: Small. Volume 9:Issue 16(2013:Aug.)
• Page Start: 2730
• Page End: 2734
• Publication Date: 2013-02-21
• Subjects: Nanotechnology -- Periodicals; Nanoparticles -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1002/smll.201300002
• Languages: English
• ISSNs: 1613-6810

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>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 <italic>μ</italic>A/cm² is found to be 3.5 V/<italic>μ</italic>m 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.</p> </abstract>