Atmospheric-pressure glow plasma synthesis of plasmonic and photoluminescent zinc oxide nanocrystals

N. Bilik, B. L. Greenberg, J. Yang, Eray Aydil, U. R. Kortshagen

Research output: Contribution to journalArticle

Abstract

In this paper, we present a large-volume (non-micro) atmospheric pressure glow plasma capable of rapid, large-scale zinc oxide nanocrystal synthesis and deposition (up to 400 μg/min), whereas in the majority of the literature, nanoparticles are synthesized using micro-scale or filamentary plasmas. The reactor is an RF dielectric barrier discharge with a non-uniform gap spacing. This design encourages pre-ionization during the plasma breakdown, making the discharge uniform over a large volume. The produced zinc oxide nanocrystals typically have diameters ranging from 4 to 15 nm and exhibit photoluminescence at ≈550 nm and localized surface plasmon resonance at ≈1900 cm-1 due to oxygen vacancies. The particle size can be tuned to a degree by varying the gas temperature and the precursor mixing ratio.

Original languageEnglish (US)
Article number243302
JournalJournal of Applied Physics
Volume119
Issue number24
DOIs
StatePublished - Jun 28 2016

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zinc oxides
atmospheric pressure
nanocrystals
luminescence
synthesis
mixing ratios
gas temperature
surface plasmon resonance
breakdown
reactors
spacing
photoluminescence
ionization
nanoparticles
oxygen

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Atmospheric-pressure glow plasma synthesis of plasmonic and photoluminescent zinc oxide nanocrystals. / Bilik, N.; Greenberg, B. L.; Yang, J.; Aydil, Eray; Kortshagen, U. R.

In: Journal of Applied Physics, Vol. 119, No. 24, 243302, 28.06.2016.

Research output: Contribution to journalArticle

Bilik, N. ; Greenberg, B. L. ; Yang, J. ; Aydil, Eray ; Kortshagen, U. R. / Atmospheric-pressure glow plasma synthesis of plasmonic and photoluminescent zinc oxide nanocrystals. In: Journal of Applied Physics. 2016 ; Vol. 119, No. 24.
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