Abstract
Optical spectroscopy and atomic force microscopy are used to study the formation of silver shells on gold nanoparticles in their highly ordered two-dimensional ensembles produced by the method of block copolymer micellar lithography. The shells are synthesized using formaldehyde or hydroquinone as a reducing agent. The spectral characteristics of the nanoparticle ensemble are shown to be essentially sensitive to the silver shell thickness. As a result, working units of solid-state optical sensors for detecting trace amounts of metal ions and different reductants may be created based on highly ordered 2D ensembles of gold nanoparticles.
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Original Russian Text © V.V. Terekhin, O.V. Dement’eva, A.V. Zaitseva, V.M. Rudoy, 2013, published in Kolloidnyi Zhurnal, 2013, Vol. 75, No. 3, pp. 385–390.
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Terekhin, V.V., Dement’eva, O.V., Zaitseva, A.V. et al. Ordered two-dimensional ensembles of nanoparticles with Au-core/Ag-shell structure. Optical and sensor properties. Colloid J 75, 351–355 (2013). https://doi.org/10.1134/S1061933X13030174
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DOI: https://doi.org/10.1134/S1061933X13030174