Nano Archive

Template-assisted formation of gradient concentric gold rings

Hong, Suck Won and Xu, Jun and Lin, Zhiqun (2006) Template-assisted formation of gradient concentric gold rings. NANO LETTERS, 6 (12). pp. 2949-2954. ISSN Print Edition ISSN: 1530-6984; Web Edition ISSN: 1530-6992

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Gradient concentric rings of polymers, including (poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and poly(methyl methacrylate) (PMMA), with unprecedented regularity were formed by repeated ``stick-slip'' motion of the contact line in a sphere-on-flat geometry. Subsequently, polymer rings served as templates to direct the formation of concentric Au rings. Three methods were described. The first two methods made use of either UV (i.e., on MEH-PPV) or thermal treatment (i.e., on PMMA) on Au-sputtered polymer rings, followed by ultrasonication. The last method, however, was much more simple and robust, involving selective removal of Au and polymer (i.e., PMMA) consecutively.

Item Type:Article
Subjects:Material Science > Nanofabrication processes and tools
ID Code:2201
Deposited By:M T V
Deposited On:17 Dec 2008 15:07
Last Modified:17 Dec 2008 15:07

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