Zhi-hao Yuan et al 2008 Nanotechnology 19 075608 doi:10.1088/0957-4484/19/7/075608
Zhi-hao Yuan1,2,3, Wei Zhou1,2, Yue-qin Duan1,2 and Li-jian Bie1
Show affiliationsA simple and low-cost method based on a two-step heat treatment of AgNO3/SiO2 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 109 cm−2 on the surface of the SiO2 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.
Issue 7 (20 February 2008)
Received 10 September 2007, in final form 27 November 2007
Published 31 January 2008
Zhi-hao Yuan et al 2008 Nanotechnology 19 075608
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