Formation of Peelable Rough Gold Patterns on an Ionic Liquid Template
Article first published online: 18 JAN 2011
Copyright © 2011 WILEY Periodicals, Inc.
Volume 7, Issue 4, pages 506–513, February 18, 2011
How to Cite
Ohzono, T., Monobe, H., Fukuda, N., Fujiwara, M. and Shimizu, Y. (2011), Formation of Peelable Rough Gold Patterns on an Ionic Liquid Template. Small, 7: 506–513. doi: 10.1002/smll.201002072
- Issue published online: 1 MAR 2011
- Article first published online: 18 JAN 2011
- Manuscript Received: 17 NOV 2010
- gold nanoribbons;
- liquid micropattern;
- vapor deposition;
- ionic liquids
The ability to control metal patterns at the micro- and nanoscales, along with the development of a simple fabrication method, is important to many applications in the fields of materials science, biological sensing, electronics, and photonics. Herein, a simple approach to fabricating gold micropatterns with controlled roughness is reported. In this approach, gold is evaporated onto a striped liquid micropattern formed on self-organized microwrinkles. Gold nanoribbons with higher roughness form on the liquid part of the substrate because the deposited gold atoms can diffuse, grow, and aggregate at the liquid–air interface, whereas flat gold films form on the solid part. The rough gold nanoribbons formed on the liquid can then be peeled off through contact with water. The extinction spectrum of the rough gold nanoribbons suggests characteristic surface-plasmon absorption. This shows the possibility of using rough gold nanoribbons with controlled shape in plasmonic technology.