A Mechanically Tunable Plasmonic Structure Composed of a Monolayer Array of Metal-Capped Colloidal Spheres on an Elastomeric Substrate  

作　　者：Xiaolong Zhu Lei Shi Xiaohan Liu Jian Zi Zhenlin Wang 

机构地区：[1]Department of Physics,Key Laboratory of Micro and Nano Photonic Structures(Ministry of Education),and State Key Laboratory of Surface Physics,Fudan University,Shanghai 200433,China [2]National Laboratory of Solid State Microstructures,Nanjing University,Nanjing 210093,China

出　　处：《Nano Research》2010年第11期807-812,共6页纳米研究（英文版）

基　　金：This work was supported by the National Program on Key Basic Research Project(973 Program)(Grant Nos.2007CB613200 and 2006CB921700);The research of J.Z.and X.H.L.is further supported by the National Natural Science Foundation of China(NSFC)and the Shanghai Science and Technology Commission.

摘　　要：A highly stretchable plasmonic structure composed of a monolayer array of metal-capped colloidal spheres on an elastomeric substrate has been fabricated using simple and inexpensive self-assembly and transfer-printing techniques.This composite structure supports coupled surface plasmons whose wavelengths are sensitive to the arrangement of the metal-capped colloidal spheres.Upon stretching,the lattice of metal-capped colloidal spheres will be deformed,leading to a large wavelength shift of surface plasmon resonances and simultaneously an obvious color change.This stretchable plasmonic structure offers a promising approach to tune surface plasmon resonances and might be exploited in realizing flexible plasmonic devices with tunability of mechanical strain.

关 键 词：Plasmonic structure metal-capped colloidal spheres elastomeric substrate tunable surface plasmon resonance 

分 类 号：TB3[一般工业技术—材料科学与工程]