University of Michigan, Ann Arbor, MI, USA.
Nat Mater. 2021 Jul;20(7):916-924. doi: 10.1038/s41563-020-00858-4. Epub 2021 Jan 4.
Strong interactions of electromagnetic fields with plasmonic nanomaterials have been exploited in various applications. These applications have centred on plasmon-enhanced scattering rates in nearby molecules or plasmon-induced heating. A question that has emerged recently is whether it is possible to use plasmonic nanostructures in a range of hot electron (hole) applications, including photocatalysis, photovoltaics and photodetection. These applications require coupling of a plasmonic component, which amplifies the interaction of light with the material, to an attached non-plasmonic component that extracts this energy in the form of electronic excitations to perform a function. In this Perspective, we discuss recent work in the emerging field of hybrid plasmonics. We focus on fundamental questions related to the nanoscopic flow of energy and excited charge carriers in these multicomponent materials. We also address critical misconceptions, challenges and opportunities that require more attention.
电磁场与等离子体纳米材料的强烈相互作用已经在各种应用中得到了利用。这些应用集中在附近分子中的等离子体增强散射率或等离子体诱导加热上。最近出现的一个问题是，是否可以在一系列热电子（空穴）应用中使用等离子体纳米结构，包括光催化、光伏和光电检测。这些应用需要将一个等离子体组件（放大光与材料的相互作用）与一个附加的非等离子体组件耦合，该组件以电子激发的形式提取这种能量来执行功能。在本观点中，我们讨论了新兴的混合等离子体领域的最新工作。我们专注于与这些多组分材料中纳米尺度能量和激发电荷载流子的流动相关的基本问题。我们还解决了需要更多关注的关键误解、挑战和机遇。
