BioChip Journal

, Volume 10, Issue 4, pp 297–309

Engineering hot spots on plasmonic nanopillar arrays for SERS: A review

  • Young-Jae Oh
  • Minhee Kang
  • Moonseong Park
  • Ki-Hun Jeong
Review Article

DOI: 10.1007/s13206-016-0406-2

Cite this article as:
Oh, YJ., Kang, M., Park, M. et al. BioChip J (2016) 10: 297. doi:10.1007/s13206-016-0406-2
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Abstract

Nanopillar arrays have provided unique optical properties due to their multi-dimensional architectures with large surface area. Recently, surface enhanced Raman spectroscopy (SERS) has taken full benefits of nanopillar arrays for highly sensitive chemical and biosensing. This article gives an overview of hot spot engineering on nanopillar arrays for SERS. Nanopillar arrays are very beneficial for providing high density plasmonic nanostructures, which induce the oscillation of free electrons to create highly localized electric fields, i.e., electromagnetic hot spots, for highly intense SERS detection. The diverse methods have successfully demonstrated the nanofabrication of hotspot-rich nanopillar arrays on silicon or glass substrates. Tailoring hot spots enables ultrasensitive detection of biomolecules at low concentrations and even allows single-molecule level detections. This review overviews the nanofabrication methods for nanopillar array construction, the design strategies for electromagnetic hot spot generation on nanopillar arrays, and their SERS applications.

Keywords

Nanopillar arrays Surface enhanced Raman scattering Hot spots Plasmonics Nanofabrication 

Copyright information

© The Korean BioChip Society and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Young-Jae Oh
    • 1
  • Minhee Kang
    • 2
  • Moonseong Park
    • 3
  • Ki-Hun Jeong
    • 3
  1. 1.DMC R&D CenterSamsung Electronics Co., Ltd.SeoulRepublic of Korea
  2. 2.Medical Device Research CenterSamsung Medical CenterSeoulRepublic of Korea
  3. 3.Department of Bio and Brain Engineering and KAIST Institute for Optical Science and TechnologyKorea Advanced Institute of Science and Technology (KAIST)DaejeonRepublic of Korea

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