Suppressed Hysteretic Field Emission From Polymer Encapsulated Silver Nanowires

Cole, Matthew T.
Parmee, Richard J.
Hiralal, Pritesh
CEPEK, Cinzia
Robertson, Alexander W.
LI, Chi
DAI, Qing
Warner, Jamie H.
Milne, William I.
Ünalan, Hüsnü Emrah
Suppression of the hysteretic electron emission in one-dimensional nanomaterial-based electron sources remains a critical barrier preventing their wide scale adoption in various vacuum electronics applications. Here, we report on the suppressed hysteretic performance, and its photo-dependence from conformal poly-vinylpyrrolidone encapsulated percolative Ag nanowire-based electron sources.


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In this work, the effect of the strong field enhancement generated in the near field of metal nanoparticles and nanowires was investigated by taking advantage of the plasmon frequencies induced by Raman laser light stimulation of free conduction electrons of these metal nanostructures. Small number of molecules that are either bound to these nanostructures or located up to a few nanometers away from the nanostructures can be detected easily through strong electromagnetic field enhancement. The aim of this w...
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Stable, self-ballasting field emission from zinc oxide nanowires grown on an array of vertically aligned carbon nanofibers
Li, C.; Zhang, Y.; Mann, M.; Hiralal, P.; Ünalan, Hüsnü Emrah; Lei, W.; Wang, B. P.; Chu, D. P.; Pribat, D.; Amaratunga, G. A. J.; Milne, W. I. (AIP Publishing, 2010-04-05)
A structure composed of zinc oxide nanowires (ZNWs) grown hydrothermally on an array of vertically aligned carbon nanofibers (CNFs) was fabricated and its field emission properties determined and compared with bare CNF arrays. The combination produced a macroscopic turn-on field of 1.2 V/mu m which was found to be the lowest reported from ZNWs deposited on a two-dimensional substrate and much less than the equivalent CNFs array (5.2 V/mu m). Crucially, field emission was found to be much more stable at high...
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We directly compare relative carrier mobilities in semiconducting organic polymer films measured using noncontact optical pump terahertz (THz) probe spectroscopy to those reported in electrical device studies. Relative transient signal amplitude measurements of photoinjected carrier mobility as a function of poly-3-hexylthiophene (P3HT) molecular weight correlate directly with electrical device test values, indicating that the THz method shows promise as a rapid material screening approach. We also present ...
Citation Formats
M. T. Cole et al., “Suppressed Hysteretic Field Emission From Polymer Encapsulated Silver Nanowires,” IEEE TRANSACTIONS ON NANOTECHNOLOGY, pp. 11–15, 2017, Accessed: 00, 2020. [Online]. Available: