基于金属纳米孔上MoS2薄片的受控整合的混合等离子体纳米结构
Hybrid plasmonic nanostructures based on controlled integration of MoS2 flakes on metallic nanoholes
摘要：
在这里，我们提出了一种简单而强大的策略，用于通过直接在金属孔顶部控制沉积二硫化钼的单片来制备混合等离子体纳米孔。该装置在氮化硅商业膜上实现，并且可以通过TEM或FIB研磨进一步细化，以实现分子或纳米颗粒通过孔。重要的是，我们表明，由纳米孔提供的等离子体增强在2D纳米孔中强烈累积，从而代表了用于流通配置中的单分子传感和测序的理想系统。在这里，我们还证明了所制备的2D材料可以用金属纳米颗粒装饰，这些金属纳米颗粒可以将其共振与纳米孔共振耦合，以进一步增强纳米级水平的电磁场限制。这种方法可以应用于任何具有高水平再现性和并行化的金纳米孔;因此，它可以为下一代具有等离子体功能的固态纳米孔铺平道路。此外，2D材料在等离子体纳米结构上的受控/有序集成为以下方面的新研究开辟了道路：增强的光发射;来自等离子体混合结构的强耦合;热电子产生;以及通常基于2D材料的传感器。纳米孔
英文摘要：
Here, we propose an easy and robust strategy for the versatile preparation of hybrid plasmonic nanopores by means of controlled deposition of single flakes of MoS2 directly on top of metallic holes. The device is realized on silicon nitride commercial membranes and can be further refined by TEM or FIB milling to achieve the passing of molecules or nanometric particles through a pore. Importantly, we show that the plasmonic enhancement provided by the nanohole is strongly accumulated in the 2D nanopore, thus representing an ideal system for single-molecule sensing and sequencing in a flow-through configuration. Here, we also demonstrate that the prepared 2D material can be decorated with metallic nanoparticles that can couple their resonance with the nanopore resonance to further enhance the electromagnetic field confinement at the nanoscale level. This method can be applied to any gold nanopore with a high level of reproducibility and parallelization; hence, it can pave the way to the next generation of solid-state nanopores with plasmonic functionalities. Moreover, the controlled/ordered integration of 2D materials on plasmonic nanostructures opens a pathway towards new investigation of the following: enhanced light emission; strong coupling from plasmonic hybrid structures; hot electron generation; and sensors in general based on 2D materials. Nanopore
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
