Floating AC-DEP (dielectrophoretic) manipulations of fluorescent nanoparticle at metal nanostructure for plasmonic applications

J. Kim, H. J. Shin, K. S. Hwang, Jung ho Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We propose the fluorescent nanoparticle manipulations at nano-metal structures with floating AC-DEP force for plasmonic applications. The electrode gap was optimized to induce enough DEP force around the nano-structure for manipulation of the nanoparticles. 10um wide gap of electrode was acquired to apply the floating AC-DEP force at various designed metal nano-structure such as nanowire, y-branch and vortex. The all shape of nano-metal structures are formed at the gap of microelectrode and not connected with microelectrode. The gold nano-structures in the gap of microelectrode were fabricated with e-beam lithography and lift-off process. Before the formation of metal nanostructure, micro electrodes for applying the electric field around the metal nano-structures were fabricated with photolithography and lift-off process. Cadmium selenide (CdSe/ZnS) QDs (0.8 nM, emission wavelength of 605 nm) with a 25 nm zinc sulfide capping layer and 100nm polystyrene nano bead (1 nM, emission wavelength of 610nm) were used as fluorescent nanoparticles. We applied the 8 V<inf>pp</inf>, 3 MHz sine wave for the positive DEP force, and it resulted in 10<sup>8</sup> V/m electric field and 10<sup>11</sup> V/m electric field gradient around gold nanowire with floating AC. The fluorescent nanoparticle's attachment at the nanowire is confirmed by the fluorescent optical analysis. The fluorescent nanoparticles are located successfully at designed metal nano-structures for plasmonic applications.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Volume9277
ISBN (Print)9781628413502
DOIs
Publication statusPublished - 2014
EventNanophotonics and Micro/Nano Optics II - Beijing, China
Duration: 2014 Oct 92014 Oct 11

Other

OtherNanophotonics and Micro/Nano Optics II
CountryChina
CityBeijing
Period14/10/914/10/11

Fingerprint

Plasmonics
Nanostructures
floating
Nanoparticles
Manipulation
manipulators
alternating current
Metals
nanoparticles
Microelectrodes
Nanowires
metals
Electrode
Electric Field
nanowires
Electric fields
Gold
Electrodes
electrodes
electric fields

Keywords

  • Floating DEP (Dielectrophoretic) force
  • Nano metal structures
  • Nanoparticle manipulations
  • Plasmonics
  • Quantum Dots

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Kim, J., Shin, H. J., Hwang, K. S., & Park, J. H. (2014). Floating AC-DEP (dielectrophoretic) manipulations of fluorescent nanoparticle at metal nanostructure for plasmonic applications. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 9277). [92770V] SPIE. https://doi.org/10.1117/12.2071015

Floating AC-DEP (dielectrophoretic) manipulations of fluorescent nanoparticle at metal nanostructure for plasmonic applications. / Kim, J.; Shin, H. J.; Hwang, K. S.; Park, Jung ho.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9277 SPIE, 2014. 92770V.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kim, J, Shin, HJ, Hwang, KS & Park, JH 2014, Floating AC-DEP (dielectrophoretic) manipulations of fluorescent nanoparticle at metal nanostructure for plasmonic applications. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 9277, 92770V, SPIE, Nanophotonics and Micro/Nano Optics II, Beijing, China, 14/10/9. https://doi.org/10.1117/12.2071015
Kim J, Shin HJ, Hwang KS, Park JH. Floating AC-DEP (dielectrophoretic) manipulations of fluorescent nanoparticle at metal nanostructure for plasmonic applications. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9277. SPIE. 2014. 92770V https://doi.org/10.1117/12.2071015
Kim, J. ; Shin, H. J. ; Hwang, K. S. ; Park, Jung ho. / Floating AC-DEP (dielectrophoretic) manipulations of fluorescent nanoparticle at metal nanostructure for plasmonic applications. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9277 SPIE, 2014.
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