Dewetted gold nanoparticles on ZnO nanorods for three-dimensionally distributed plasmonic hot spots

Jinho Yoo, Jae Hyun Kim, Kyungjun Lee, Sangmin Lee, Sunghan Kim, Hyun Kyu Park, Sang Woo Kim, Jihyun Bae, Jong Jin Park, Dukhyun Choi

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

We report the importance of a three-dimensional plasmonic nanostructure for the increased spatial distribution of plasmonic hot spots, and its effective and high-throughput fabrication via a dewetting process. Gold is thermally vapor deposited on zinc oxide nanorods. Dewetted gold nanoparticles are self-assembled on the top and sides of the ZnO nanorods, thus creating three-dimensionally dispersed plasmonic probes. The size of the dewetted nanoparticles is tuned by varying the gold thickness. Localized surface plasmon resonance became red-shifted as the size of the gold nanoparticles increased.

Original languageEnglish
Pages (from-to)654-657
Number of pages4
JournalScripta Materialia
Volume69
Issue number9
DOIs
StatePublished - 2013 Nov 1

Keywords

  • Annealing
  • Nanostructure
  • Optical absorption
  • Plasmonics
  • Zinc oxide

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    Yoo, J., Kim, J. H., Lee, K., Lee, S., Kim, S., Park, H. K., Kim, S. W., Bae, J., Park, J. J., & Choi, D. (2013). Dewetted gold nanoparticles on ZnO nanorods for three-dimensionally distributed plasmonic hot spots. Scripta Materialia, 69(9), 654-657. https://doi.org/10.1016/j.scriptamat.2013.07.024