title: Patterning of polymer brushes made easy using titanium dioxide: direct and remote photocatalytic lithography.
abstract: Photocatalytic lithography is proved for the realization of micropatterned polymer brushes. Initiator-functionalized titanium dioxide or silicon surfaces are respectively exposed directly to near-UV light through a photomask (direct approach) or through a transparent photoactive TiO2 film (remote approach). Initiator patterns are then amplified as polymer brushes with SI-ATRP. Features down to 10 μm could be obtained using simple equipment. The process is intrinsically parallel, has high throughput and scalable to wafer size, making it powerful for microfabrication purposes.
authors.affiliation: Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale "Amedeo Avogadro", Viale T. Michel 11, 15100 Alessandria, Italy. guido.panzarasa@unipmn.it.
authors.forename: G
authors.initials: G
authors.lastname: Panzarasa
authors.forename: G
authors.initials: G
authors.lastname: Soliveri
authors.forename: K
authors.initials: K
authors.lastname: Sparnacci
authors.forename: S
authors.initials: S
authors.lastname: Ardizzone