title: Tunable surface plasmon resonance and strong SERS performances of Au opening-nanoshell ordered arrays.
abstract: 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.
authors.affiliation: Key Lab of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, PR China. liugq@issp.ac.cn
authors.forename: Guangqiang
authors.initials: G
authors.lastname: Liu
authors.forename: Yue
authors.initials: Y
authors.lastname: Li
authors.forename: Guotao
authors.initials: G
authors.lastname: Duan
authors.forename: Jingjing
authors.initials: J
authors.lastname: Wang
authors.lastname: Changhao
authors.lastname: Liang
authors.forename: Weiping
authors.initials: W
authors.lastname: Cai