A1 Journal article (refereed)
Conduction properties of semiconductive multiwalled carbon nanotubes (2022)
Ahlskog, M., Herranen, O., Leppäniemi, J., & Mtsuko, D. (2022). Conduction properties of semiconductive multiwalled carbon nanotubes. European Physical Journal B - Condensed Matter and Complex Systems, 95(8), Article 130. https://doi.org/10.1140/epjb/s10051-022-00392-z
JYU authors or editors
Publication details
All authors or editors: Ahlskog, M.; Herranen, O.; Leppäniemi, J.; Mtsuko, D.
Journal or series: European Physical Journal B - Condensed Matter and Complex Systems
ISSN: 1434-6028
eISSN: 1434-6036
Publication year: 2022
Publication date: 13/08/2022
Volume: 95
Issue number: 8
Article number: 130
Publisher: Springer Science and Business Media LLC
Publication country: France
Publication language: English
DOI: https://doi.org/10.1140/epjb/s10051-022-00392-z
Publication open access: Openly available
Publication channel open access: Partially open access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/84135
Abstract
We have undertaken low-temperature conduction measurements on arc-discharge synthesized, semiconducting multiwalled carbon nanotubes (MWNT). The diameters of these are in the range 2.5–10 nm, corresponding to the sizes just above single-walled carbon nanotubes (SWNT), up to middle-sized MWNTs. The energy gap, inversely related to the diameter, varies strongly in this range, and consequently there is a strong dependence of the transport on tube diameter. Certain transport characteristics are much alike those found in SWNTs, such as the ON-state resistance and Coulomb blockade. However, the transport gap has a more complex behavior than the corresponding one in semiconducting SWNTs, and a number of features, such as negative differential resistance are commonly observed. Different models for the small bias transport behavior are briefly discussed, and we consider especially the possibility of conduction via the second layer.
Keywords: nanostructures; nanotubes; semiconductors; electric conductivity
Contributing organizations
Ministry reporting: Yes
Reporting Year: 2022
JUFO rating: 1
