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A simple way to synthesize large-scale Cu2O/Ag nanoflowers for ultrasensitive surface-enhanced Raman scattering detection

机译:一种简单的方法来合成大规模Cu2O / Ag纳米割草,用于超细化表面增强拉曼散射检测

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摘要

Here, we report a simple strategy to prepare highly sensitive surface-enhanced Raman spectroscopy (SERS) substrates based on Ag decorated Cu2O nanoparticles by combining two common techniques, viz, thermal oxidation growth of Cu2O 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 similar to 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.
机译:在这里,我们通过组合两种常见技术,Cu2O纳米颗粒和Ag纳米粒子膜的磁控溅射制造来制备基于Ag装饰Cu2O纳米颗粒的高敏感的Cu 2 O纳米颗粒的高敏感表面增强拉曼光谱(SERS)衬底的简单策略。 亚甲基蓝色用作SERS研究的拉曼分析物,并且在优化条件下制造的基材具有非常好的敏感性(分析增强因子类似于10(8)),稳定性和再现性。 用R-2值& 0.9获得浓度强度的线性依赖性。0.9。 这些优异的性质表明基材在检测生物和化学物质的检测方面具有很大的潜力。

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