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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >One-step fabrication of Cu nanoparticles on silicate glass substrates for surface plasmonic sensors
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One-step fabrication of Cu nanoparticles on silicate glass substrates for surface plasmonic sensors

机译：用于表面等离子体传感器硅酸盐玻璃基板上Cu纳米粒子的一步制造

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摘要

Cu nanopartides (NPs) have attracted considerable attention as a substitute for noble metals, such as Au and Pt, due to their unique surface plasmon resonance (SPR) properties, natural abundance, and low fabrication cost. We succeeded in one-step preparation of Cu NPs with a uniform size on glass surface by heating Cu2+ ions containing Na2O-Al2O3-SiO2 glass in hydrogen atmosphere. The formation of Cu NPs was confirmed using scanning and transmission electron microscopies, small-angle X-ray scattering, and visible and infrared absorption spectroscopies. Heat treatment in a hydrogen environment facilitated the diffusion of hydrogen molecules into the glass to form Cu atoms and Al OH bonds. The Cu atoms migrated through gaps formed by Al OH toward the surface, where they combined to form Cu NPs. The optical spectra of showed sharp and intense SPR bands at a peak wavelength of 580 nm, indicating the homogeneous distribution of uniformly sized Cu NPs on the glass surface without aggregation. The obtained samples exhibited good sensing performance due to the strong SPR properties. Further advantage of our method was that Cu nanoparticles can be repeatedly formed by heating under H-2 gas after removing the previously formed particles.
机译：Cu纳米喹啉（NPS）由于其独特的表面等离子体共振（SPR）性质，天然丰度和低制造成本，因此吸引了贵金属（如Au和Pt）的替代品。我们通过加热的Cu2 +含有的Na 2 O-Al2O3-SiO2系玻璃在氢气氛中的离子成功地铜NP的一步制备在玻璃表面上的均匀尺寸。使用扫描和透射电子显微镜，小角度X射线散射和可见和红外吸收光谱来确认Cu NP的形成。氢环境中的热处理促进了氢分子扩散到玻璃中以形成Cu原子和Al OH键。 Cu原子通过通过Al OH形成的间隙迁移到表面，其中它们组合形成Cu NPS。光谱显示在580nm的峰值波长的峰值波长的尖锐且强的SPR条带，表示均匀尺寸的Cu NP在玻璃表面上的均匀分布而不会聚集。所获得的样品由于强的SPR性能而表现出良好的感测性能。我们的方法的进一步优点是Cu纳米颗粒可以通过在除去预先形成的颗粒之后通过在H-2气下加热而重复形成。

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