Highly efficient silver particle layers on glass substrate synthesized by the sonochemical method for surface enhanced Raman spectroscopy purposes

Petr Suchomel, Robert Prucek, Klára Černá, Ariana Fargašová, Aleš Panáček, Aharon Gedanken, Radek Zbořil, Libor Kvítek

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

A fast method for preparing of silver particle layers on glass substrates with high application potential for using in surface enhanced Raman spectroscopy (SERS) is introduced. Silver particle layers deposited on glass cover slips were generated in one-step process by reduction of silver nitrate using several reducing agents (ethylene glycol, glycerol, maltose, lactose and glucose) under ultrasonic irradiation. This technique allows the formation of homogeneous layers of silver particles with sizes from 80 nm up to several hundred nanometers depending on the nature of the used reducing agent. Additionally, the presented method is not susceptible to impurities on the substrate surface and it does not need any additives to capture or stabilize the silver particles on the glass surface. The characteristics of prepared silver layers on glass substrate by the above mentioned sonochemical approach was compared with chemically prepared ones. The prepared layers were tested as substrates for SERS using adenine as a model analyte. The factor of Raman signal enhancement reached up to 5·105. On the contrary, the chemically prepared silver layers does not exhibit almost any pronounced Raman signal enhancement. Presented sonochemical approach for preparation of silver particle layers is fast, simple, robust, and is better suited for reproducible fabrication functional SERS substrates than chemical one.

Original languageEnglish
Pages (from-to)165-172
Number of pages8
JournalUltrasonics Sonochemistry
Volume32
DOIs
StatePublished - 1 Sep 2016

Bibliographical note

Publisher Copyright:
© 2016 Published by Elsevier B.V.

Funding

The authors gratefully acknowledge the financial support by the National Programme for Sustainability I (2013-2020), project LO1305 of the Ministry of Education , Youth and Sports of the Czech Republic, Operational Program Education for Competitiveness – European Social Fund (CZ.1.07/2.3.00/20.0056) and Internal Grants of Palacký University in Olomouc (PrF_2015_022). The authors thank Petra Bazgerová for SEM measurements and Jiří Tuček for language corrections (both from the Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacký University, Czech Republic).

FundersFunder number
Ministerstvo Školství, Mládeže a Tělovýchovy
European Social FundCZ.1.07/2.3.00/20.0056
Univerzita Palackého v OlomouciPrF_2015_022

    Keywords

    • Glass substrate
    • Silver particles layer
    • Sonochemical
    • Surface enhanced Raman spectroscopy

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