Sers-active and recyclable Nb2O5/Au platforms

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-03-01 DOI:10.1016/j.matlet.2025.138308

Max Pavlović , Natalia Khomiakova , Eva Kočišová , Marek Procházka , Ondřej Kylián

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引用次数: 0

Abstract

Due to their unique physicochemical properties, metal/metal oxide nanomaterials are gaining increasing attention in the scientific community. One possible and promising application of such materials is their use as recyclable platforms for surface-enhanced Raman scattering (SERS) spectroscopy. Here we explore the possible use of Nb₂O₅/Au coatings fabricated by magnetron sputtering combined with thermal treatment as SERS-active platforms recyclable by UV-light irradiation. It is shown that the SERS activity of Nb₂O₅/Au coatings is solely related to the plasmonic character of Au nanostructures that, under optimized conditions allows for the SERS detection of methylene blue down to the concentration of 2 × 10^-7 M with a relative standard deviation 15 % in the acquired SERS spectra. Furthermore, it is demonstrated that the Nb₂O₅/Au coatings may be recycled by UV light. The cleaning efficiency provided by Nb₂O₅ is exponentially dependent on the UV irradiation time with a characteristic time equal to 1.75 h.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive