Chemical sensing with plasmonic nanoparticle assemblies and buried waveguides

使用等离激元纳米粒子组件和掩埋波导的化学传感

• 批准号: 506519-2017
• 负责人: Ritcey, Anna
• 金额: $ 9.42万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=642052
• 关键词: Chemical; sensing; plasmonic; nanoparticle; assemblies

This objective of the proposed research is the development of a new generation of chemical sensors based on the unique optical properties of metal nanoparticles. Metal nanoparticles interact very strongly with light and the signature of this interaction is dependent on structural parameters, such as particle size and the details of particle arrangement within assemblies. Importantly, the optical properties of nanoparticle assemblies also depend on their local environment, opening the door to exciting new possibilities for sensing applications.We propose to deposit nanoparticle ring assemblies on the surface of an optical waveguide designed to optimize interaction between the guided light and the nanostructures. In this way, light transmitted within the guide can serve to monitor changes in local environment through changes in the optical signature of the nanoparticle assemblies. The specific proposed platform is highly original, both in the design of the optical component and the self-assembly method employed for nanostructure fabrication. In collaboration with an industrial partner, prototype sensors will be developed for the detection of ions in waste water and hydrogen sulfide in gas and oil.

该研究的目的是基于金属纳米颗粒独特的光学特性开发新一代化学传感器。金属纳米颗粒与光的相互作用非常强烈，这种相互作用的特征取决于结构参数，例如颗粒尺寸和组装件内颗粒排列的细节。重要的是，纳米粒子组件的光学特性也取决于他们的本地环境，打开了大门，令人兴奋的新的可能性传感applications.We建议存款纳米粒子环组件的光波导的表面上设计，以优化之间的相互作用的引导光和纳米结构。以这种方式，在光导内传输的光可以用于通过纳米颗粒组装体的光学特征的变化来监测局部环境的变化。具体提出的平台是高度原创的，无论是在光学元件的设计和自组装方法用于纳米结构制造。将与一个工业伙伴合作开发原型传感器，用于检测废水中的离子以及天然气和石油中的硫化氢。