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Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Chemijos inžinerija / Chemical engineering (T005)
Author(s): Ramanauskaitė, Lina;Xu, Huizhong;Griškonis, Egidijus;Batiuškaitė, Danutė;Snitka, Valentinas
Title: Comparison and evaluation of silver probe preparation techniques for tip-enhanced Raman spectroscopy
Is part of: Plasmonics. New York : Springer Science, 2018, Vol. 13, iss. 6
Extent: p. 1907-1919
Date: 2018
Note: Funded: Government of Lithuania through an European Space Agency under the PECS (Plan for European Cooperating States). Nr. 4000115694/15/NL/Nde
Keywords: Tip-enhanced Raman spectroscopy;Plasmonic silver nanostructures;Galvanic displacement;Electroless deposition;Electrochemical etching;Full metal tip
Abstract: In this work, the different procedures for the fabrication of Ag probes for tip-enhanced Raman spectroscopy (TERS) in a top illumination/detection setup are proposed and tested. We focus on technologically simple methods allowing Si tips coated with plasmonic silver nanostructures and bulk metal Ag tips with good shape reproducibility to be produced for atomic force microscopy (AFM) feedback setup. The preparation of Ag TERS probes was based on chemical deposition and vacuum sputtering of Ag on the tips of commercially available Si cantilevers. A straightforward technique for the fabrication of bulk metal Ag probes by the electrochemical etching of Ag microwires was also proposed. Chemically coated, sputtered, and electrochemically etched TERS tips were characterized by scanning electron microscopy (SEM). The produced tips were tested for TERS measurements using graphene oxide (GO) as the target analyte in a top illumination setup. A comparative analysis of enhancement factors (EF) for the different types of tips (probes) is presented in this work
Affiliation(s): Biologijos katedra
Kauno technologijos universitetas
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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