title: A simple approach for large-area fabrication of Ag nanorings.
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.
authors.affiliation: Nanomaterials and Nanotechnology Research Center, Tianjin University of Technology, Tianjin 300191, People's Republic of China. Tianjin Key Lab for Photoelectric Materials and Devices, Tianjin 300191, People's Republic of China.
authors.forename: Zhi-Hao
authors.initials: ZH
authors.lastname: Yuan
authors.forename: Wei
authors.initials: W
authors.lastname: Zhou
authors.forename: Yue-Qin
authors.initials: YQ
authors.lastname: Duan
authors.forename: Li-Jian
authors.initials: LJ
authors.lastname: Bie