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Fabrication of gold/polyvinyl-alcohol nano-composites by photoreduction and their optical characterization

Title
Fabrication of gold/polyvinyl-alcohol nano-composites by photoreduction and their optical characterization
Authors
Kang B.Wu J.W.
Ewha Authors
우정원강보영
SCOPUS Author ID
우정원scopus
Issue Date
2006
Journal Title
Journal of the Korean Physical Society
ISSN
0374-4884JCR Link
Citation
vol. 49, no. 3, pp. 955 - 958
Indexed
SCI; SCIE; SCOPUS; KCI WOS scopus
Abstract
The photoreduction process in a gold-polyvinyl alcohol film is studied. Upon irradiation with UV light, photoreduction takes place to reduce gold, resulting in a nano-composite film. As time elapses, gold nano-particles are formed inside the polymer matrix. The optical absorption spectra confirms the presence of a surface plasmon resonance, which is attributed to the gold nano-particles. The changes in the surface plasmon resonance peak are investigated as the preparation parameters, such as the irradiation time, the film thickness, and the molecular weight of polyvinyl alcohol polymer, are varied. Furthermore, energy dispersive spectroscopy was employed to quantitatively identify the amount of photoreduction in the gold-polyvinyl alcohol film.
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자연과학대학 > 물리학전공 > Journal papers
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