Field-emission properties of molybdenum disulfide nanotubes

Abstract

The field-emission (FE) properties of molybdenum disulfide nanotubes (NTs) are reported for the single-tip geometry. Reproducibly stable FE currents in excess of 10 μA were measured from single NT tips in vacuum of 10−7 mbar. Valuable characteristics of the nanotube material are ease of processing and reproducibility of the FE properties.

Inorganic Nanotubes

“…[91] The MoS 2±x I y sub-nanometer diameter nanotubes can be used as a storage material for reversible lithium batteries [92] or as electron field emitters. [93] The catalytic activity of WS 2 for the hydrodesulfurization of thiophene has been enhanced by formation of unique shapes of the panicles, such as tubes and/or fibers. [94] Quantum effects have been demonstrated as, for example, a blue-shift of 100 nm in the CdSe nanotubes relative to the bulk polycrystalline material.…”

Synthesis and characterization of hollow MoS2 microspheres grown from MoO3 precursors

“…Transition metal sulfide molybdenum disulfide (MoS 2 ), for its unique layered structures consisting of covalently bound S-Mo-S trilayers, continues to attract the most interest for its important applications in solid lubricants [15], potential hydrogen storage [16], solid-state secondary lithium battery cathodes [17], and field emission tips [18]. To date, various methods were put forward to prepare MoS 2 including thermal decomposition [19], hydrothermal or solvothermal synthesis [20,21], electronbeam irradiation activation [22], sonochemical process [23], and template synthesis [24] with different molybdenum sources such as: Na 2 MoO 4 , (NH 4 ) 6 [25,26,27,28].…”

Insights into the capping and structure of MoS2 nanotubes as revealed by aberration-corrected STEM

“…However these currents have been measured in the case of open ended nanotubes and have not yet been reported in the case of the closed nanotubes as those obtained in the present study. 32 Another possibility is to use them as catalysts since these properties have not been investigated for capped nanotubes as those obtained in the present study. We are currently carrying out investigations on the catalytic properties of such capped nanotubes.…”