Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/37832
Title: Enhanced mechanical stability of gold nanotips through carbon nanocone encapsulation
Keywords: Gold nanotips
Carbon nanocones
Nanotecnologias de ouro
Nanocones de carbono
Issue Date: 2015
Publisher: Springer Nature
Citation: CANO-MARQUES, A. G. et al. Enhanced mechanical stability of gold nanotips through carbon nanocone encapsulation. Scientific Reports, [S. l.], v. 5, p. 1-5, 2015. DOI: https://doi.org/10.1038/srep10408.
Abstract: Gold is a noble metal that, in comparison with silver and copper, has the advantage of corrosion resistance. Despite its high conductivity, chemical stability and biocompatibility, gold exhibits high plasticity, which limits its applications in some nanodevices. Here, we report an experimental and theoretical study on how to attain enhanced mechanical stability of gold nanotips. The gold tips were fabricated by chemical etching and further encapsulated with carbon nanocones via nanomanipulation. Atomic force microscopy experiments were carried out to test their mechanical stability. Molecular dynamics simulations show that the encapsulated nanocone changes the strain release mechanisms at the nanoscale by blocking gold atomic sliding, redistributing the strain along the whole nanostructure. The carbon nanocones are conducting and can induce magnetism, thus opening new avenues on the exploitation of transport, mechanical and magnetic properties of gold covered by sp2 carbon at the nanoscale.
URI: http://repositorio.ufla.br/jspui/handle/1/37832
Appears in Collections:DFI - Artigos publicados em periódicos



This item is licensed under a Creative Commons License Creative Commons