Gold Nanoparticulate Thin Films Fabricated by the Electrostatic Self—Assembly Process |
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作者单位: | Wuhan University of Technology |
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摘 要: |
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关 键 词: | 金胶体 金纳米薄膜 制备 静电自组装 |
收稿时间: | 16 February 2001 |
Gold nanoparticulate thin films fabricated by the electrostatic self-assembly process |
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Authors: | Yu Hai-hu Jiang De-sheng |
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Affiliation: | (1) Fiber Optic Sensing Technology Center, Wuhan University of Technology, 430070 Wuhan, China |
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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.
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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Keywords: | gold colloid nanoparticle electrostatic self-assembly thin film |
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