The preparation process of monolayered masks consisted of PS nanospheres: application of PS nanospheres onto a water surface (a), consolidation of PS nanospheres (b), and lift off ordered monolayer (c).
The diagram of the evaporation and sputtering system.
Schematic representation of the experimental procedures for fabricating various ordered Ag nanostructures arrays using three fabrication processes (processes I–III): (I) honeycomb arrays of nanodots (A1–A2), A1: perpendicular evaporation on the PS sphere template, A2: removing PS template; (II) nanobowl arrays are obtained after the polymer cores were dissolved in CHCl3 (A1–A3). (III) nanoring arrays (B1-B2), B1: sputtering is carried out with a certain angle and the PS template is rotating at a certain rate, B2: removing PS template.
SEM image of a self-assembled monolayer of PS nanospheres with a diameter of 460 nm. Inset is the corresponding high magnification SEM image.
SEM images of Ag thin layers over PS nanospheres prepared by evaporation (a) and sputtering (b) methods. Inset is the corresponding high magnification plane view respectively.
SEM image of hexagonal patterned Ag nanodot arrays prepared by evaporation method. Inset is the corresponding high magnification SEM image.
SEM image of Ag nanoring arrays produced by sputtering Ag with tilted incidence angle. Inset is the corresponding high magnification SEM plane view image of the Ag nanoring array.
(a) SEM image of an ordered Ag nanobowl arrays; (b) SEM image of profile view image of the Ag nanobowl arrays; (c) TEM image of Ag nanobowl arrays, the inset is the corresponding SAED patterns.
(a) The simulated absorption spectra of Ag nanodot arrays on quartz substrates with various sizes; (b) UV–vis spectra of the samples.
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