Multi-Scale-Porosity TiO₂ scaffolds grown by innovative sputtering methods for high throughput hybrid photovoltaics.

ABSTRACT: We propose an up-scalable, reliable, contamination-free, rod-like TiO₂ material grown by a new method based on sputtering deposition concepts which offers a multi-scale porosity, namely: an intra-rods nano-porosity (1-5 nm) arising from the Thornton's conditions and an extra-rods meso-porosity (10-50 nm) originating from the spatial separation of the Titanium and Oxygen sources combined with a grazing Ti flux. The procedure is simple, since it does not require any template layer to trigger the nano-structuring, and versatile, since porosity and layer thickness can be easily tuned; it is empowered by the lack of contaminations/solvents and by the structural stability of the material (at least) up to 500 °C. Our material gains porosity, stability and infiltration capability superi

SUBMITTER: Sanzaro S 

PROVIDER: S-EPMC5175132 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature