Patterning of polymer brushes made easy using titanium dioxide: direct and remote photocatalytic lithographyElectronic supplementary information (ESI) available. See DOI: 10.1039/c5cc00255a

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 TiO 2 film (remote a...

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Bibliographic Details
Main Authors: Panzarasa, G, Soliveri, G, Sparnacci, K, Ardizzone, S
Format: Article
Language:English
Online Access:Get full text
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Summary: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 TiO 2 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. Titanium dioxide photocatalytic lithography of initiator functionalized surfaces is proved for the realization of micropatterned polymer brushes.
ISSN:1359-7345
1364-548X
DOI:10.1039/c5cc00255a