Open Access
Research Article

Nano Research

, Volume 3, Issue 11, pp 807-812

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 PhysicsFudan University
  • Lei Shi
    • Department of Physics, Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and State Key Laboratory of Surface PhysicsFudan University
  • Xiaohan Liu
    • Department of Physics, Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and State Key Laboratory of Surface PhysicsFudan University
  • Jian Zi
    • Department of Physics, Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and State Key Laboratory of Surface PhysicsFudan University
  • Zhenlin Wang
    • National Laboratory of Solid State MicrostructuresNanjing University

DOI: 10.1007/s12274-010-0048-y

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.

https://static-content.springer.com/image/art%3A10.1007%2Fs12274-010-0048-y/MediaObjects/12274_2010_48_Fig1_HTML.jpg

Keywords

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

Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2010