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Gold nanoparticulate thin films fabricated by the electrostatic self-assembly process

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Abstract

Gold colloids were prepared by citrate-induced reduction of hydrogen tetrachlorourate, and gold nanoparticles were electrostatically self-assembled with poly (diallyldimethylammonium chloride) into multilayer thin films on silicon and quartz substrates. The particulate thin films were characterized by UV-vis spectroscopy, surface enhanced Raman scattering, atomic force microscopy and resistivity measurements. Due to the interparticle coupling between individual gold particles, an obvious collective particle plasmon resonance was observed on UV-vis spectra, and the particulate thin films exhibited a strong SERS effect. For multilayer thin films with a high particle coverage on substrates, resistivity of the order of 10−4Ω·cm was yielded.

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Authors and Affiliations

  1. Fiber Optic Sensing Technology Center, Wuhan University of Technology, 430070, Wuhan, China

    Yu Hai-hu (Assoc. Prof.) & Jiang De-sheng

Authors
  1. Yu Hai-hu
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  2. Jiang De-sheng
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Yu Hai-hu

This research was financially supported by China Scholarship Council and the Natural Science Foundation of Hubei Province (Project 2000J002)

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Hai-hu, Y., De-sheng, J. Gold nanoparticulate thin films fabricated by the electrostatic self-assembly process. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 17, 38–41 (2002). https://doi.org/10.1007/BF02852632

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  • DOI: https://doi.org/10.1007/BF02852632

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