title: Nano-petri-dish array assisted glancing angle sputtering for Ag-NP assembled bi-nanoring arrays as effective SERS substrates.
abstract: Nano-petri-dish array assisted glancing angle Ag-sputtering was reported to synthesize Ag-nanoparticle (Ag-NP) assembled bi-nanoring arrays as surface-enhanced Raman scattering (SERS) substrates. By manipulating the sputtering-Ag duration, the gaps between the Ag-NPs in the bi-nanorings are tunable to acquire optimal electromagnetic field enhancement, and the ordered bi-nanoring arrays ensure excellent reproducibility for Raman measurement. Such as-fabricated Ag-NPs assembled nanoring arrays exhibit excellent SERS performance, not only 1 × 10(-12) M rhodamine 6G has been identified, but also polychlorinated biphenyls with a low concentration down to 1 × 10(-9) M has been recognized, showing great potential in the detection of trace organic pollutants in the environment.
authors.affiliation: Key Laboratory of Materials Physics, and Anhui Key Laboratory of Nanomaterials and Nanostructures, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei, Anhui 230031, People's Republic of China.
authors.forename: Xiaoye
authors.initials: X
authors.lastname: Hu
authors.forename: Guowen
authors.initials: G
authors.lastname: Meng
authors.forename: Qing
authors.initials: Q
authors.lastname: Huang
authors.forename: Chuhong
authors.initials: C
authors.lastname: Zhu
authors.forename: Bensong
authors.initials: B
authors.lastname: Chen
authors.forename: Zhulin
authors.initials: Z
authors.lastname: Huang
authors.forename: Fadi
authors.initials: F
authors.lastname: Li
authors.forename: Zhaoming
authors.initials: Z
authors.lastname: Wang