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Fabrication of Ag/ZnO nanostructures for SERS applications

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dc.contributor.author Koleva M.E.
dc.contributor.author Nedyalkov N.N.
dc.contributor.author Nikov R.
dc.contributor.author Atanasova G.
dc.contributor.author Karashanova D.
dc.contributor.author Nuzhdin V.I.
dc.contributor.author Valeev V.F.
dc.contributor.author Rogov A.M.
dc.contributor.author Stepanov A.L.
dc.date.accessioned 2021-02-25T20:34:24Z
dc.date.available 2021-02-25T20:34:24Z
dc.date.issued 2020
dc.identifier.issn 0169-4332
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/161780
dc.description.abstract © 2019 Elsevier B.V. A novel and effective approach is suggested for fabrication of composite Ag/ZnO nanostructures for surface-enhanced Raman scattering (SERS) by combining laser and ion implantation techniques. The study explores the relation between the nanoscopic features of the prepared Ag/ZnO nanocomposites and their effectiveness as SERS active substrates. The ZnO thin films are grown by pulsed laser deposition (PLD). Ag+-ion implantation is used for surface synthesis of Ag nanoparticles (NPs) in the ZnO matrix. The implanted samples are annealed by a Nd:YAG laser at various parameters. The surface morphology, composition and optical properties of the nanocomposites are studied before and after the ion and laser modifications. The possibility to apply these structures to ammonium nitrate detection is investigated by identifying the most suitable conditions for laser annealing of the implanted Ag/ZnO structures in view of producing the strongest SERS signal. A comparative Raman study is performed at two laser excitation wavelengths. New results are obtained for different ammonium nitrate (AN) concentrations. The strongest Raman signal of ammonium nitrate is detected for the Ag/ZnO substrate annealed at 532 nm and characterized by a high surface roughness and a wide nanoparticles’ size distribution, where a low surface electron density of silver was obtained.
dc.relation.ispartofseries Applied Surface Science
dc.subject Ion implantation
dc.subject Laser annealing
dc.subject Nanocomposite
dc.subject Nanoparticles
dc.subject PLD
dc.subject SPR
dc.title Fabrication of Ag/ZnO nanostructures for SERS applications
dc.type Article
dc.relation.ispartofseries-volume 508
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS01694332-2020-508-SID85077379228

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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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