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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 10
BKCSDE 34(10)
October 20, 2013 

Green Synthesis of Ag Thin Films on Glass Substrates and Their Application in Surface-Enhanced Raman Scattering
Young Kwan Cho, In Hyun Kim, Kuan Soo Shin*
Ag thin film, Ag2O powder, Ethanol, Surface-enhanced Raman scattering
Nanostructured Ag thin films could be facilely prepared by soaking glass substrates in ethanolic solutions containing Ag2O powders at an elevated temperature. The formation of zero-valent Ag was corroborated using X-ray diffraction and X-ray photoelectron spectroscopy. The deposition of Ag onto a glass substrate was readily controlled simply by changing the reaction time. Due to the aggregated structures of Ag, the surfaceenhanced Raman scattering spectra of benzenethiol could be clearly identified using the Ag-coated glass. The enhancement factor at 514.5 nm excitation estimated using benzenethiol reached 1.0 × 105 while the detection limit of rhodamine 6G was found to be as low as 1.0 × 10−13 M. Since this one-pot fabrication method is ecofriendly and is suitable for the mass production of diverse Ag films, it is expected to play a significant role in the development of surface plasmon-based analytical devices.
2942 - 2946
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