Heat-Induced Fragmentation and Adhesive Behaviour of Gold Nanowires for Surface-Enhanced Raman Scattering Substrates
Autor: | Annamarija Trausa, Ciro Federiko Tipaldi, Liga Ignatane, Boris Polyakov, Sven Oras, Edgars Butanovs, Edgars Vanags, Krisjanis Smits |
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Jazyk: | angličtina |
Rok vydání: | 2024 |
Předmět: | |
Zdroj: | ChemEngineering, Vol 8, Iss 1, p 15 (2024) |
Druh dokumentu: | article |
ISSN: | 2305-7084 |
DOI: | 10.3390/chemengineering8010015 |
Popis: | This study explores a novel approach to surface-enhanced Raman scattering (SERS) substrate fabrication through the heat-induced fragmentation of gold nanowires (Au NWs) and its impact on gold nanoparticle adhesion/static friction using atomic force microscopy manipulations. Controlled heating experiments and scanning electron microscopy measurements reveal significant structural transformations, with NWs transitioning into nanospheres or nanorods in a patterned fashion at elevated temperatures. These morphological changes lead to enhanced Raman signals, particularly demonstrated in the case of Rhodamine B molecules. The results underscore the critical role of NW shape modifications in augmenting the SERS effect, shedding light on a cost-effective and reliable method for producing SERS substrates. |
Databáze: | Directory of Open Access Journals |
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