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

Open Access
Research Article

DOI: 10.1007/s12274-010-0048-y

Cite this article as:
Zhu, X., Shi, L., Liu, X. et al. Nano Res. (2010) 3: 807. 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.

Keywords

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

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.Department of Physics, Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and State Key Laboratory of Surface PhysicsFudan UniversityShanghaiChina
  2. 2.National Laboratory of Solid State MicrostructuresNanjing UniversityNanjingChina

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