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Silicon Nanowires Substrates Fabrication for Ultra-Sensitive Surface Enhanced Raman Spectroscopy Sensors

Gebavi, Hrvoje; Mikac, Lara; Marciuš, Marijan; Šikić, Mile; Mohaček Grošev, Vlasta; Janči, Tibor; Vidaček, Sanja; Hasanspahić, Emina; Omanović Miklićanin, Enisa; Ivanda, Mile (2017) Silicon Nanowires Substrates Fabrication for Ultra-Sensitive Surface Enhanced Raman Spectroscopy Sensors. Croatica Chemica Acta, 90 (2). pp. 256-262. ISSN 0011-1643

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Abstract

The silicon based substrates for surface enhanced Raman spectroscopy (SERS) have been synthesized and tested. The silver-assisted electroless wet chemical etching method has been utilized for silicon nanowires production which has been proved as the promising SERS substrate. The morphology of the silicon nanowires coated with silver nanoparticles has been examined by scanning electron microscopy. The SERS measurements tested on rhodamine 6G molecules indicated the optimal silicon nanowire substrate production obtained for 5 M hydrofluoric acid and 30 mM silver nitrate etching solution. The results show SERS detection limit of 10–8 M rhodamine in aqueous solution.

Item Type: Article
Uncontrolled Keywords: electroless chemical etching ; surface enhanced Raman spectroscopy ; silicon nanowires ; rhodamine
Subjects: NATURAL SCIENCES > Physics
NATURAL SCIENCES > Chemistry
Divisions: Division of Materials Chemistry
Division of Materials Physics
Projects:
Project titleProject leaderProject codeProject type
Hibriridne silicijske nanstrukture za senzorik-NANOSENSMile IvandaIP-2014-09-7046HRZZ
Depositing User: Mile Ivanda
Date Deposited: 03 Apr 2018 11:06
Last Modified: 03 Apr 2018 11:06
URI: http://fulir.irb.hr/id/eprint/4004
DOI: 10.5562/cca3127

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