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http://dx.doi.org/10.6111/JKCGCT.2019.29.6.379

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

Lee, Young Wook (Energy & Environment Division, Korea Institute of Ceramic Engineering & Technology (KICET))
Shin, Tae Ho (Energy & Environment Division, Korea Institute of Ceramic Engineering & Technology (KICET))
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.29, no.6, 2019 , pp. 379-382 More about this Journal
Abstract
Synthesis of gold nanoparticles (NPs) made an aqueous environment via the reduction of HAuCl4 by ascorbic acid (AC) with the surfactant of polyvinylpyrrolidone (PVP). Highly monodisperse gold particles with size ranges from 4 to 20 nm were prepared in high-yield by pH control. The synthesized gold nanoparticles were analyzed for structural and optical properties using transmission electron microscopy (TEM) and UV-vis spectroscopy. In this study, we could reveal that the prepared nanoparticles exhibited efficient surface-enhanced Raman scattering (SERS) properties, and their SERS activities depends on size.
Keywords
Size control; Au nanoparticles; Surface enhanced raman spectroscopy (SERS);
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