Electron or energy transfer process is critical to understand the interaction between graphene and metal nanostructures. Combining atomic force microscope nanomanipulation with single‐particle spectroscopy enables in situ investigation of the interaction between single gold nanorod and monolayer graphene. This paper reveals that scattering and photoluminescence intensity of the nanorod decreased after coupling with monolayer graphene. The coupling strength is distance dependent and different for diverse nanoparticles, resulting in intensity quenching ratio varying from 20% to 60%, and broadening of resonance linewidth varying from 18 to 38 meV. These results clarify previous controversy between ensemble studies and single‐particle measurements, and that contributes to the deeper understanding of plasmonic graphene hybrids.

中文翻译：

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金纳米棒与石墨烯偶联的原位光学研究

电子或能量转移过程对于理解石墨烯与金属纳米结构之间的相互作用至关重要。将原子力显微镜纳米操作与单粒子光谱学结合起来，可以对单个金纳米棒和单层石墨烯之间的相互作用进行原位研究。本文揭示了纳米棒与单层石墨烯偶联后的散射和光致发光强度降低。耦合强度取决于距离并且对于不同的纳米粒子而言是不同的，从而导致强度猝灭率从20％到60％不等，并且谐振线宽的范围从18 meV变到38 meV。这些结果澄清了之前的集成研究与单颗粒测量之间的争议，这有助于对等离激元石墨烯杂化物的更深入了解。