Plasmon-Driven Chemical Reaction and Characterization

等离激元驱动的化学反应和表征

• 批准号: 2481339
• 金额: --
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2481339
• 关键词: Plasmon; Driven; Chemical; Reaction; Characterization

In metallic nanoparticles, localized surface plasmon polaritons are excited under illumination, with the effect of concentrating the incident electromagnetic field at the nanoparticle surface, effectively corresponding to a confinement of light well beyond the classic diffraction limit. The aims of this project are to exploit plasmon-driven effects in order to: i) locally promote chemical reactions, enhancing reaction rates and product selectivity at the micro/nanoscale; ii) to locally enhance the electric field by enabling to achieve high sensitivity and resolution in particular in Raman spectroscopy. This second methodology will be applied for the characterization of novel 2-dimensional (2D) materials, which have complementary properties to those of graphene.The student will produce substrates with metallic nanostructures in several ways and will conduct crystallization experiments as well as Raman measurements on different systems, from organic molecules to polymers and 2D materials.The final goal is to use plasmonic-driven effects to realize structures with controlled order or properties at the nanoscale and to characterize new 2D materials with nanoscale resolution.

在金属纳米颗粒中，局部表面等离子体激元在照明下被激发，具有将入射电磁场集中在纳米颗粒表面的效果，有效地对应于远超过经典衍射极限的光的限制。该项目的目的是利用等离子体激元驱动效应，以便：i）局部促进化学反应，提高反应速率和微米/纳米级的产品选择性; ii）通过实现高灵敏度和分辨率，特别是在拉曼光谱中，局部增强电场。这第二种方法将被应用于新型二维（2D）材料的表征，这些材料具有与石墨烯互补的特性。学生将以多种方式生产具有金属纳米结构的基底，并将在不同的系统上进行结晶实验以及拉曼测量，从有机分子到聚合物和2D材料。最终目标是使用等离子体-驱动效应，以实现在纳米级上具有受控顺序或属性的结构，并以纳米级分辨率表征新的2D材料。