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Nanostructured Silver Substrates With Stable and Universal SERS Properties: Application to Organic Molecules and Semiconductor Nanoparticles

Chursanova, M. V. and Dzhagan, V. M. and Yukhymchuk, V. O. and Lytvyn, O. S. and Valakh, M. Ya. and Khodasevich, I. A. and Lehmann, D. and Zahn, D. R. T. and Waurisch, C. and Hickey, S. G. (2009) Nanostructured Silver Substrates With Stable and Universal SERS Properties: Application to Organic Molecules and Semiconductor Nanoparticles. Nanoscale Research Letters, 5 (2). pp. 403-409.

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Abstract

Nanostructured silver films have been prepared by thermal deposition on silicon, and their properties as SERS substrates investigated. The optimal conditions of the post-growth annealing of the substrates were established. Atomic force microscopy study revealed that the silver films with relatively dense and homogeneous arrays of 60–80-nm high pyramidal nanoislands are the most efficient for SERS of both organic dye and inorganic nanoparticles analytes. The noticeable enhancement of the Raman signal from colloidal nanoparticles with the help of silver island films is reported for the first time.

Item Type:Article
Uncontrolled Keywords:SERS - Ag/Si nanoisland films - Post-growth annealing - Rhodamine 6G - CdSe - Nanoparticles
Subjects:Physical Science > Nanophysics
Physical Science > Nanoelectronics
Physical Science > Nanomagnetics
Analytical Science > Beam methods
ID Code:8148
Deposited By:Lesley Tobin
Deposited On:22 Mar 2010 14:57
Last Modified:22 Mar 2010 14:57

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