Article Title

A mechanically tunable plasmonic structure composed of a monolayer array of metal-capped colloidal spheres on an elastomeric substrate

Authors

Xiaolong Zhu, 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
Lei Shi, 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
Xiaohan Liu, 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
Jian Zi, 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
Zhenlin Wang, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China

Keywords

Plasmonic structure, metal-capped colloidal spheres, elastomeric substrate, tunable surface plasmon resonance

Abstract

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.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-010-0048-y

Publisher

Tsinghua University Press

Recommended Citation

Xiaolong Zhu,Lei Shi,Xiaohan Liu,Jian Zi,Zhenlin Wang, A mechanically tunable plasmonic structure composed of a monolayer array of metal-capped colloidal spheres on an elastomeric substrate. NanoRes.2010, 3(11): 807–812