Deflected Capillary Force Lithography

Yangjun Cai

doi:10.1021/nn2045278

2012-01-06

PRE

DOI：10.1021/nn2045278

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摘要

En 中文

Herein we introduce a novel strategy based on capillary force lithography (CFL) to fabricate asymmetric polymeric ring structures by applying both shear and nomal forces to a poly(dimethylsiloxane) stamp. The mechanism for the formation of asymmetric rings is caused by the deflection of cylindrical PDMS pillars due to the shear load, which is therefore termed deflected (FL (dCFL). The asymmetric polymeric rings could be readily transferred to an underlying gold layer to generate split ring structures with tunable opening angles. Asymmetric structures based upon trlgular and square-shaped pillars were also fabricated. These elements were formed into periodic arrays over surface areas as large as 1 cm(2) and may have optical and electromagnetic applications.

Keyword:

capillary force lithography

capillary rise

split ring

asymmetric nanostructure

soft lithography

PDMS

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期刊

ACS Nano

IF:

论文数:

2.7W

被引数:

25.6W

机构

Texas A&M University System

学者数:

4.4W

论文数: 4.0W

被引数: 4.0K

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