A simple approach for large-area fabrication of Ag nanorings.
Nanotechnology
; 19(7): 075608, 2008 Feb 20.
Article
en En
| MEDLINE
| ID: mdl-21817645
ABSTRACT
A simple and low-cost method based on a two-step heat treatment of AgNO(3)/SiO(2) film has been developed for fabricating metal Ag nanoring arrays. The as-prepared nanorings have an inner diameter of 70-250 nm and an average wall thickness (namely wire diameter) of approximately 30 nm with a number density of approximately 10(9) cm(-2) on the surface of the SiO(2) matrix. X-ray diffraction (XRD) results reveal that these nanorings exhibit a face-centered cubic crystal structure. Furthermore, a new growth mechanism, namely a molten metal bubble as a self-template, is tentatively proposed for Ag nanorings.
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01-internacional
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MEDLINE
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En
Revista:
Nanotechnology
Año:
2008
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Article