Synthesis and Optical Characterization of Building-Block Plasmonic Gold Nanostructures

Oanh Thi Tu Nguyen, Chi Ha Le, Long Duy Pham, Hieu Sy Nguyen, Chung Vu Hoang
Author affiliations

Authors

  • Oanh Thi Tu Nguyen Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet street, Cau Giay district, Hanoi, Vietnam
  • Chi Ha Le Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet street, Cau Giay district, Hanoi, Vietnam
  • Long Duy Pham Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet street, Cau Giay district, Hanoi, Vietnam
  • Hieu Sy Nguyen Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet street, Cau Giay district, Hanoi, Vietnam
  • Chung Vu Hoang Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet street, Cau Giay district, Hanoi, Vietnam

DOI:

https://doi.org/10.15625/0868-3166/27/2/9552

Keywords:

plasmonics, chemical synthesis, optical property, nanoparticles, nanorods, random nano-islands

Abstract

Plasmonics, the field involves manipulating light at the nanoscale, has been being an emergent research field worldwide. Synthesizing the plasmonic gold nanostructures with controlled morphology and desired optical properties is of special importance towards specific applications in the field. Here, we report the chemical synthesis and the optical properties of various plasmonic Au nanostructures, namely Au nanoparticles (AuNPs), Au nanorods (AuNRs) and random Au nano-islands (AuNI) that are the building blocks for plasmonic research. The results show that the AuNPs exhibited a single plasmonic resonance, the AuNRs displayed two identical and separated modes of the resonance, and the random Au nano-islands presented a very broad resonance. Specifically, tailoring the anisotropy of the Au nanorods enabled extending their resonant frequencies from the visible to the near infrared ones, which is in accordance with the finite different time domain simulations.

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Published

24-08-2017

How to Cite

[1]
O. T. T. Nguyen, C. H. Le, L. D. Pham, H. S. Nguyen, and C. V. Hoang, “Synthesis and Optical Characterization of Building-Block Plasmonic Gold Nanostructures”, Comm. Phys., vol. 27, no. 2, p. 131, Aug. 2017.

Issue

Vol. 27 No. 2 (2017)

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Papers

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Received 07-04-2017
Accepted 16-06-2017
Published 24-08-2017