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Issue 42, 2012

A plasmonic nano-antenna with controllable resonance frequency: Cu1.94S–ZnS dimeric nanoheterostructure synthesized in solution

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Abstract

This work presents a strategy for fine control of the localized surface plasmonic resonance (LSPR) frequency of nano-antennas by constructing dimeric nanoheterostructures, in which the first phase serves as a plasmonic resonance source, while the second one as a tunable component for the fine-control of the LSPR frequency. Following this strategy, Cu1.94S–ZnS dimeric nanoheterostructures are synthesized in solution, with Cu1.94S being the plasmonic resonance source while ZnS the tunable dielectric component. An ideal equivalent electric circuit model is established to simulate the optical response of the nano-antennas. By managing the growth of the ZnS nanocrystals, the LSPR peak is proved designable and controllable in the range of 1390 nm–1680 nm, which renders the material potentially applicable in telecommunication. The reported results may provide new strategies for designing and fabricating various technologically important nano-devices.

Graphical abstract: A plasmonic nano-antenna with controllable resonance frequency: Cu1.94S–ZnS dimeric nanoheterostructure synthesized in solution

Supplementary files

Article information


Submitted
30 Jun 2012
Accepted
10 Sep 2012
First published
11 Sep 2012

J. Mater. Chem., 2012,22, 22614-22618
Article type
Paper

A plasmonic nano-antenna with controllable resonance frequency: Cu1.94S–ZnS dimeric nanoheterostructure synthesized in solution

F. Huang, X. Wang, J. Xu, D. Chen and Y. Wang, J. Mater. Chem., 2012, 22, 22614 DOI: 10.1039/C2JM34239A

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