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Tunable Surface Plasmon Resonance and Strong SERS Performances of Au opening-nanoshell Ordered Arrays
Author: Guangqiang Liu, Yue Li, Guotao Duan, Jingjing Wang, Changhao, Liang, Weiping Cai
Periodical: ACS Appl. Mater. & Interfaces.
Page: 2012, 4,1-5
Full text link: http://pubs.acs.org/doi/full/10.1021/am201455x
Periodical: ACS Appl. Mater. & Interfaces.
Page: 2012, 4,1-5
Full text link: http://pubs.acs.org/doi/full/10.1021/am201455x
Au opening-nanoshell ordered arrays with tunable local surface plasmon resonance (SPR) property have been fabricated based on sputtering deposition onto monolayer colloidal crystal. The changes in local SPR peak for the arrays can be well tuned from visible to near-infrared region with decreasing of the spacing between two neighbor opening-nanoshells. It has been revealed that the changes of SPR peak originate from the electromagnetic coupling between two adjacent Au opening-nanoshells. This study is important to design and fabricate surface-enhanced Raman scattering substrates with high activity and practical application.
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