Fast growth of nanoparticles in a hollow cathode plasma through orbit motion limited ion collection
2013 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 103, no 19, 193108- p.Article in journal (Refereed) Published
Plasma-based nanoparticle synthesis techniques are attractive in many respects but suffer from a major drawback-low productivity. We demonstrate a technique by which the growth rate of copper nanoparticles has been substantially increased by collection of copper ions. A growth rate as high as 470 nm/s was obtained as compared to a growth rate of less than 3 nm/s in the case of growth by neutrals. The increased trapping of copper is explained as orbital motion limited (OML) collection of ions. Experimentally obtained nanoparticle growth rates are in good agreement with theoretical estimates of the OML ion collection rates.
Place, publisher, year, edition, pages
2013. Vol. 103, no 19, 193108- p.
Copper ions, Copper nanoparticles, Fast growths, Hollow cathodes, Ion collection, Nanoparticle growths, Nanoparticle synthesis, Orbital motion limiteds
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-137308DOI: 10.1063/1.4828883ISI: 000327817000067ScopusID: 2-s2.0-84889838266OAI: oai:DiVA.org:kth-137308DiVA: diva2:678685
FunderKnut and Alice Wallenberg Foundation, 2012.0083Swedish Research Council, 2008-6572Strategic Initiative - Materials Science, 2009 00971
QC 201401132013-12-122013-12-122014-01-13Bibliographically approved