List of records in nano database
IDs:
409
Authors : |
Skákalová,V.;Kaiser,A.,B.;Osváth,Z.;Vértesy,G.;Bíró,L.,P.;Roth,S. |
Title : |
Ion irradiation effects on conduction
in single-wall carbon nanotube networks |
JournalName : |
Applied Physics A |
PubDateYear : |
2008 |
PubDateOther : |
|
Volume : |
90 |
Issue : |
|
StartPage : |
597 |
EndPage : |
602 |
Keywords : |
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Notes : |
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Abstract : |
We have measured how irradiation by Ar+ and N+ ions modifies electronic
conduction in single-wall carbon nanotube (SWNT) networks, finding dramatically
different effects for different thicknesses. For very thin transparent networks,
ion irradiation increases localization of charge carriers and reduces the variable-range
hopping conductivity, especially at low temperatures. However, for thick networks
(SWNT paper) showing metallic conductivity, we find a relatively sharp peak in conductivity
as a function of irradiation dose. Our investigation of this peak reveals the
important role of thermal annealing extending beyond the range of the irradiating ions,
and shows the dependence on the morphology of the samples. We propose a simple
model that accounts for the temperature-dependent conductivity. |
HTML_Local : |
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HTML_Remote : |
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Preprint_Local : |
http://www.nanotechnology.hu/reprint/ apa_90_597_Skakalova_CNT.pdf |
Preprint_Remote : |
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