AI 中文总结
研究铅纳米颗粒在等离子体应用中的性能，通过扫描透射电子显微镜和电子能量损失谱评估其光学性质，发现其支持从近红外到深紫外的局域表面等离子体共振，具有作为多光谱等离子体平台的潜力。
AI 中文摘要
在其他非贵金属中，铅（Pb）是深紫外光谱区域等离子体应用中特别受关注的材料。然而，尚未对其等离子体性能进行实验研究。在这项工作中，展示了球形铅纳米颗粒光学性质对其直径的依赖性。通过扫描透射电子显微镜和电子能量损失谱相结合的方法，在单粒子水平上评估了化学合成铅纳米颗粒的等离子体性能。我们的研究结果表明，这些纳米颗粒在从近红外到深紫外光谱范围内均支持局域表面等离子体共振。该范围是所有等离子体元素金属中最广的，延伸至200纳米以下波长。因此，铅纳米颗粒在非常宽的波长范围内表现出稳定的等离子体性能，证实了其作为多光谱等离子体平台的潜力。
英文摘要
Among the other non-noble metals, lead (Pb) is a material of particular interest for plasmonic applications in the deep ultraviolet spectral region. However, experimental studies on its plasmonic performance have not yet been conducted. In this work, the dependence of the optical properties of spherical lead nanoparticles on their diameter is demonstrated. The plasmonic performance of chemically synthesized lead nanoparticles is evaluated at the single-particle level by means of a combination of scanning transmission electron microscopy and electron energy loss spectroscopy. Our findings demonstrate that these nanoparticles support localized surface plasmon resonances across the entire spectrum from near-infrared to deep-ultraviolet. This range was identified as the most extensive among all plasmonic elemental metals, extending to wavelengths below 200 nanometers. Consequently, lead nanoparticles exhibit stable plasmonic performance over a remarkably broad wavelength range, thereby substantiating their potential as a multispectral plasmonic platform.
