Well-aligned zinc sulfide nanobelt arrays: Excellent field emitters

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Large-scale, well-aligned and oriented wurtzite ZnS nanobelt arrays are fabricated by a simple solvothermal reaction and subsequent heat treatment. The nanobelts grow along the [0001] direction perpendicularly on a zinc substrate, which are about 30 nm in thickness, several hundreds of nanometers in width, and up to 4 mu m in length. Importantly, such nanostructured arrays show a good field emission property with low turn-on field (3.8 V mu m(-1)) and high field enhancement factor (similar to 1800), which is ascribed to the top edges and corners of the freestanding and well aligned nanobelts, and good electric contact with the conducting substrate where they grow. (c) 2006 American Institute of Physics.
Publisher
AMER INST PHYSICS
Issue Date
2006-12
Language
English
Article Type
Article
Keywords

WURTZITE-TYPE ZNS; CARBON NANOTUBE FILMS; EMISSION PROPERTIES; SOLVOTHERMAL ROUTE; ELECTRON-EMISSION; LOW-TEMPERATURE; NANOWIRES

Citation

APPLIED PHYSICS LETTERS, v.89, no.23

ISSN
0003-6951
DOI
10.1063/1.2403913
URI
http://hdl.handle.net/10203/3244
Appears in Collection
NE-Journal Papers(저널논문)
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