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Horizontal silicon nanowires for surface-enhanced Raman spectroscopy

Gebavi, Hrvoje; Ristić, Davor; Baran, Nikola; Mikac, Lara; Mohaček Grošev, Vlasta; Gotić, Marijan; Šikić, Mile; Ivanda, Mile (2018) Horizontal silicon nanowires for surface-enhanced Raman spectroscopy. 2018, 5 . ISSN 2053-1591

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The main purpose of this paper is to focus on details of the fabrication process of horizontally and vertically oriented silicon nanowires (SiNWs) substrates for the application of surface-enhanced Raman spectroscopy (SERS). The fabrication process is based on the vapor–liquid–solid method and electroless-assisted chemical etching, which, as the major benefit, resulting in the development of economical, easy-to-prepare SERS substrates. Furthermore, we examined the fabrication of Au coated Ag nanoparticles (NPs) on the SiNWs substrates in such a way as to diminish the influence of silver NPs corrosion, which, in turn, enhanced the SERS time stability, thus allowing for wider commercial applications. The substances on which high SERS sensitivity was proved are rhodamine (R6G) and 4-mercaptobenzoic acid (MBA), with the detection limits of 10−8Mand 10−6 M, respectively.

Item Type: Article
Uncontrolled Keywords: electroless chemical etching; surface-enhanced Raman spectroscopy; silicon nanowires; vapor–liquid–solid; silver nanoparticles corrosion
Subjects: NATURAL SCIENCES > Physics > Atomic and Molecular Physics
NATURAL SCIENCES > Chemistry > Physical Chemistry
Divisions: Division of Materials Chemistry
Division of Materials Physics
Project titleProject leaderProject codeProject type
Površinski pojačano Ramanovo raspršenje za razvoj biokemijskih senzoraHrvoje GebaviUNSPECIFIEDHAZU
Depositing User: Vlasta Mohaček Grošev
Date Deposited: 03 Aug 2021 12:20
DOI: 10.1088/2053-1591/aaa152

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