0000000000469536
AUTHOR
F. Cacialli
Fabrication and Characterisation of Titania Photonic Nanostructures
In this work, we report about the preparation and morphological characterization of photonic nanopatterned titania films (~ 200 nm).
Polystyrene nanoparticle-templated hollow titania nanosphere monolayers as ordered scaffolds
We report a novel multi-step method for the preparation of ordered mesoporous titania scaffolds and show an illustrative example of their application to solar cells. The method is based on (monolayer) colloidal nanosphere lithography that makes use of polystyrene nanoparticles organised at a water–air interface and subsequently transferred onto a solid substrate. A titania precursor solution (titanium(IV) isopropoxide in ethanol) is then drop-cast onto the monolayer and left to “incubate” overnight. Surprisingly, instead of the expected inverse monolayer-structure, a subsequent calcination step of the precursor yields an ordered monolayer of hollow titania nanospheres with a wall thickness …