A simple way to synthesize large-scale Cu2O/Ag nanoflowers for ultrasensitive surface-enhanced Raman scattering detection. (6th February 2018)

• Record Type: Journal Article
• Authors: Zou, Junyan; Song, Weijia; Xie, Weiguang; Huang, Bo; Yang, Huidong; Luo, Zhi
• Is Part Of: Nanotechnology. Volume 29:Number 11(2018)
• Publication Date: 2018-02-06
• Subjects: semiconductor oxide/metal substrates -- nanoflower -- surface-enhanced Raman scattering -- methylene blue; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/1361-6528/aaa72b
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: Here, we report a simple strategy to prepare highly sensitive surface-enhanced Raman spectroscopy (SERS) substrates based on Ag decorated Cu2 O nanoparticles by combining two common techniques, viz, thermal oxidation growth of Cu2 O nanoparticles and magnetron sputtering fabrication of a Ag nanoparticle film. Methylene blue is used as the Raman analyte for the SERS study, and the substrates fabricated under optimized conditions have very good sensitivity (analytical enhancement factor ∼10 8 ), stability, and reproducibility. A linear dependence of the SERS intensities with the concentration was obtained with an R 2 value >0.9. These excellent properties indicate that the substrate has great potential in the detection of biological and chemical substances.