Field emission from MoO3 nanobelts
- 23 December 2002
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 81 (26), 5048-5050
- https://doi.org/10.1063/1.1532104
Abstract
Single-crystalline nanobelts having an orthorhombic structure were prepared on a Si wafer via heating a Mo foil in air. The nanobelts were 50–300 nm wide and tens of nanometers thick. The nanobelt lengths lie in the [001] direction. Field-emission measurements showed that the threshold field decreased with the anode–sample separation increasing. Typically, a threshold field of 12.9 V/μm was determined at a spacing of 80 μm. The nanobelts exhibited a sharp increase in emission current density near the threshold field and, thus, reached a high current density at a relatively low field. Emission from both sharp corners and edges of the nanobelts is assumed to contribute to the high emission current. The high-current emission paired with high stability indicates that the prepared nanobelt films are excellent field emitters.
Keywords
This publication has 18 references indexed in Scilit:
- Tungsten nanowires and their field electron emission propertiesApplied Physics Letters, 2002
- Needle-shaped silicon carbide nanowires: Synthesis and field electron emission propertiesApplied Physics Letters, 2002
- Field emission from crystalline copper sulphide nanowire arraysApplied Physics Letters, 2002
- Field emission from nonaligned carbon nanotubes embedded in a polystyrene matrixApplied Physics Letters, 2002
- High-current field emission from a vertically aligned carbon nanotube field emitter arrayApplied Physics Letters, 2001
- Flat panel display prototype using gated carbon nanotube field emittersApplied Physics Letters, 2001
- Oriented Silicon Carbide Nanowires: Synthesis and Field Emission PropertiesAdvanced Materials, 2000
- Field emission from quasi-aligned SiCN nanorodsApplied Physics Letters, 2000
- Field-emission characteristics of SiC nanowires prepared by chemical-vapor depositionApplied Physics Letters, 1999
- Field emission from single-wall carbon nanotube filmsApplied Physics Letters, 1998