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
Abstract
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 | ||||||||
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| 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 |
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| Divisions: | Division of Materials Chemistry Division of Materials Physics |
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| Depositing User: | Vlasta Mohaček Grošev | ||||||||
| Date Deposited: | 03 Aug 2021 12:20 | ||||||||
| URI: | http://fulir.irb.hr/id/eprint/6499 | ||||||||
| DOI: | 10.1088/2053-1591/aaa152 |
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