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Work Function Measurement for Ag-TCNQ (TCNQ = Tetracyanoquinodimethane) Nanowires

Ye, Chunnuan; Zheng, Kaibo LU and Chen, Guorong (2012) In Journal of Nanoscience and Nanotechnology 12(8). p.6576-6578
Abstract
The Ag-TCNQ (TCNQ = tetracyanoquinodimethane) nanowires synthesized by a vapor transport reaction exhibit promising field emission properties. Their effective work function at high applied electric field was estimated to be about 1.70 eV according to the Fowler-Nordheim (F-N) theory. In this work, we directly measured the intrinsic work function of Ag-TCNQ nanowires via the ultraviolet photoemission spectroscopy (UPS). According to the threshold binding energy, the work function is obtained to be 5.45 eV, which shows a large discrepancy with the preivous estimation based on F-N theory. The reductive effecitive work function during the field emission is mainly attributed to the morphology-induced enhancement of the nanowire array.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Work Function, Ultraviolet Photoemission Spectroscopy, Ag-TCNQ Nanowires
in
Journal of Nanoscience and Nanotechnology
volume
12
issue
8
pages
6576 - 6578
publisher
American Scientific Publishers
external identifiers
  • wos:000308379900070
  • scopus:84865109712
ISSN
1533-4880
DOI
10.1166/jnn.2012.5417
language
English
LU publication?
yes
id
b136d13c-aff0-4e21-be8e-3f74b9bf89ba (old id 3147245)
date added to LUP
2012-11-21 15:54:31
date last changed
2017-01-01 03:07:47
@article{b136d13c-aff0-4e21-be8e-3f74b9bf89ba,
  abstract     = {The Ag-TCNQ (TCNQ = tetracyanoquinodimethane) nanowires synthesized by a vapor transport reaction exhibit promising field emission properties. Their effective work function at high applied electric field was estimated to be about 1.70 eV according to the Fowler-Nordheim (F-N) theory. In this work, we directly measured the intrinsic work function of Ag-TCNQ nanowires via the ultraviolet photoemission spectroscopy (UPS). According to the threshold binding energy, the work function is obtained to be 5.45 eV, which shows a large discrepancy with the preivous estimation based on F-N theory. The reductive effecitive work function during the field emission is mainly attributed to the morphology-induced enhancement of the nanowire array.},
  author       = {Ye, Chunnuan and Zheng, Kaibo and Chen, Guorong},
  issn         = {1533-4880},
  keyword      = {Work Function,Ultraviolet Photoemission Spectroscopy,Ag-TCNQ Nanowires},
  language     = {eng},
  number       = {8},
  pages        = {6576--6578},
  publisher    = {American Scientific Publishers},
  series       = {Journal of Nanoscience and Nanotechnology},
  title        = {Work Function Measurement for Ag-TCNQ (TCNQ = Tetracyanoquinodimethane) Nanowires},
  url          = {http://dx.doi.org/10.1166/jnn.2012.5417},
  volume       = {12},
  year         = {2012},
}