Uniform surface growth of copper oxide nanowires in radiofrequency plasma discharge and limiting factors
Filipic, Gregor, Baranov, Oleg, Mozetic, Miran, Ostrikov, Ken, & Cvelbar, Uros (2014) Uniform surface growth of copper oxide nanowires in radiofrequency plasma discharge and limiting factors. Physics of Plasmas, 21(11), pp. 1-7.
The uniform growth of copper oxide nanowires on the top of copper plate has been investigated during the exposure to radiofrequency plasma discharge in respect to plasma properties and its localization. The copper samples of 10 mm radius and 1 mm in thickness were exposed to argon-oxygen plasma created at discharge power of 150 W. After 10 min, almost uniform growth of nanowires was achieved over large surface. There were significant distortions in nanowire length and shape near the edges. Based on the experimental results, we developed a theoretical model, which took into account a balance in heat released at the flow of the current to the nanowire and rejected from the nanowire. This model established a dependence of the maximal length of the nanowire at dependence on the plasma parameters, where the limiting factor for nanowire growth and distortions in distribution are ballistic effects of ions and their local fluxes. In contrast, the plasma heating by potential interactions of species has very little influence on the length and smaller deviations in flux are allowed for uniformity of growth
Impact and interest:
Citation counts are sourced monthly from and citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
|Item Type:||Journal Article|
|Keywords:||Nanowires, Plasma materials processing, Plasma materials processing, Copper, Surface oxidation|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2014 AIP Publishing LLC|
|Deposited On:||03 Nov 2015 03:51|
|Last Modified:||08 Nov 2016 04:10|
Repository Staff Only: item control page