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Size control of Au nanoparticles by pH and effect of surface enhanced raman spectroscopy (SERS)

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2019, 29(6), pp.379~382
  • DOI : 10.6111/JKCGCT.2019.29.6.379
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : November 12, 2019
  • Accepted : December 12, 2019
  • Published : December 31, 2019

Young Wook Lee 1,  Tae Ho Shin 1

1한국세라믹기술원

Accredited

ABSTRACT

Synthesis of gold nanoparticles (NPs) made an aqueous environment via the reduction of HAuCl4 by ascorbicacid (AC) with the surfactant of polyvinylpyrrolidone (PVP). Highly monodisperse gold particles with size ranges from 4to 20 nm were prepared in high-yield by pH control. The synthesized gold nanoparticles were analyzed for structural andoptical properties using transmission electron microscopy (TEM) and UV-vis spectroscopy. In this study, we could revealthat the prepared nanoparticles exhibited efficient surface-enhanced Raman scattering (SERS) properties, and their SERSactivities depends on size.

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