Combinatorial investigation of nanostructures formed in a titanium dioxide based nanocomposite film on top of fluor-doped tin oxide layers

摘要

Nanostructures formed in a titanium dioxide (TiO_2)- poly(styrene)-block-poly(ethyleneoxide) nanocomposite film on top of fluor-doped tin oxide (FTO) layers are investigated. The combinatorial approach is based on probing a wedge-shaped FTO-gradient with grazing incidence small angle X-ray scattering (GISAXS) in combination with a moderate micro-focus X-ray beam. The characteristic lateral length is given by adjacent nanowire-shaped TiO_2 regions. It decreases from 200 nm on the thick FTO layer to 90 nm on the bare glass surface.