Please use this identifier to cite or link to this item:
https://doi.org/10.1063/1.1991978
DC Field | Value | |
---|---|---|
dc.title | Efficient field emission from α- Fe2 O3 nanoflakes on an atomic force microscope tip | |
dc.contributor.author | Zhu, Y.W. | |
dc.contributor.author | Yu, T. | |
dc.contributor.author | Sow, C.H. | |
dc.contributor.author | Liu, Y.J. | |
dc.contributor.author | Wee, A.T.S. | |
dc.contributor.author | Xu, X.J. | |
dc.contributor.author | Lim, C.T. | |
dc.contributor.author | Thong, J.T.L. | |
dc.date.accessioned | 2014-04-24T07:20:56Z | |
dc.date.available | 2014-04-24T07:20:56Z | |
dc.date.issued | 2005-07-11 | |
dc.identifier.citation | Zhu, Y.W., Yu, T., Sow, C.H., Liu, Y.J., Wee, A.T.S., Xu, X.J., Lim, C.T., Thong, J.T.L. (2005-07-11). Efficient field emission from α- Fe2 O3 nanoflakes on an atomic force microscope tip. Applied Physics Letters 87 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.1991978 | |
dc.identifier.issn | 00036951 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/50910 | |
dc.description.abstract | Aligned arrays of flake-shaped hematite (α- Fe2 O3) nanostructure have been fabricated on an atomic force microscope (AFM) tip. They are created by simply heating an iron-coated AFM tip in ambience on a hot plate. These nanoflakes are characterized as α- Fe2 O3 single crystalline structures with tip radii as small as several nanometers and are highly effective as electron field emitters. With a vacuum gap of about 150 μm, field emission measurements of α- Fe2 O3 nanoflakes on AFM tips show a low turn-on voltage of about 400-600 V and a high current density of 1.6 A cm-2 under 900 V. Such high emission current density is attributed to the nanoscale sharp tips of the as-grown nanoflakes. Based on the Fowler-Nordheim theory, it is demonstrated the enhancement factor of α- Fe2 O3 nanoflakes on AFM tips is comparable to that of carbon nanotubes. Our findings suggest that α- Fe2 O3 nanoflakes are potentially useful as candidates for future electron field emission devices. © 2005 American Institute of Physics. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.1991978 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | PHYSICS | |
dc.contributor.department | ELECTRICAL & COMPUTER ENGINEERING | |
dc.contributor.department | NUS NANOSCIENCE & NANOTECH INITIATIVE | |
dc.contributor.department | MECHANICAL ENGINEERING | |
dc.description.doi | 10.1063/1.1991978 | |
dc.description.sourcetitle | Applied Physics Letters | |
dc.description.volume | 87 | |
dc.description.issue | 2 | |
dc.description.page | - | |
dc.description.coden | APPLA | |
dc.identifier.isiut | 000230435800042 | |
Appears in Collections: | Staff Publications |
Show simple item record
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.