Fabrication of two-dimensional close-packed shell structure in ceramic thin films

Abstract

TiO 2 thin films with a periodical two-dimensional close-packed hemispherical structure were prepared on Si substrates using pulsed laser deposition and close-packed monolayer polystyrene colloidal crystals as a template. Compared with conventional methods, which use a top-down approach, this route supports low-cost production of a periodic structure. Additionally, it is applicable to various ceramics for use in applications related to photonic crystals, surface self-cleaning materials, data storage media, bioassays, and so on.

Durable visible light self-cleaning surfaces imparted by TiO2/SiO2/GO photocatalyst

“…For example, Barthlott and Neinhuis 1,2 discussed the surface self-cleaning functions of butterfly wings and lotus leaves. The functions have been quickly imitated in inorganic and organic films, 3–7 glass surfaces, 8–10 concrete and marbles. 11,12 There are many other applications as summarized by several review articles.…”