Abstract
In this paper, surface-enhanced Raman scattering (SERS) substrates with high detection sensitivity were prepared by thermal oxidation, and magnetron sputtering and the SERS properties of these substrates were studied using methylene blue as probe molecule. The result showed that the SERS substrate has good enhancement effect (analytical enhancement factor ~ 107), stability, and reproducibility. The minimum detection limit for methylene blue can reach 10–9 M. The SERS intensity and the concentration has a linear dependence (R2 > 0.9). This suggests that the substrate has great potential in the detection of biological and chemical substances.
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This work was supported by the Natural Science Foundation of Guangdong Province, China (Grant numbers 2018A030313018) and the Fundamental Research Funds for the Central Universities (Grant numbers 21619416).
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Junqi Yang, Bingliang Chen, and Zhi Luo. The first draft of the manuscript was written by Bingliang Chen, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Yang, J., Chen, B., Peng, J. et al. Preparation of CuO Nanowires/Ag Composite Substrate and Study on SERS Activity. Plasmonics 16, 1059–1070 (2021). https://doi.org/10.1007/s11468-020-01358-6
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DOI: https://doi.org/10.1007/s11468-020-01358-6