论文标题
单个分子的等离子驱动运动
Plasmon-driven motion of an individual molecule
论文作者
论文摘要
我们证明，纳米腔等离子体从分子远离分子的几个纳米可以诱导分子运动。为此，我们通过将扫描隧道显微镜（STM）和STM诱导的光发射结合使用扫描隧道显微镜（STM）和光谱型显微镜（STM）和光谱式显微镜（STM）和光谱型光发射，研究了在超薄NaCl膜上吸附在超薄NaCl膜上的众所周知的快速穿梭运动。比较了从锚定在阶梯边缘的分子的空间分辨的单分子发光光谱，并在自由表面吸附了分离的分子，我们发现，在后者的情况下，羔羊移位的方位角调制会减少。这是证据表明，快速的穿梭运动是由等离子体 - 表面耦合远程诱导的。等离子诱导的分子运动可能会通过将分子机与纳米粒子结合起来，以控制单分子的定向运动，而无需局部探针，可以打开一个有趣的操场来弥合纳米镜和介观世界。
We demonstrate that nanocavity plasmons generated a few nanometers away from a molecule can induce molecular motion. For this, we study the well-known rapid shuttling motion of zinc phthalocyanine molecules adsorbed on ultrathin NaCl films by combining scanning tunneling microscopy (STM) and spectroscopy (STS) with STM-induced light emission. Comparing spatially resolved single-molecule luminescence spectra from molecules anchored to a step edge with isolated molecules adsorbed on the free surface, we found that the azimuthal modulation of the Lamb shift is diminished in case of the latter. This is evidence that the rapid shuttling motion is remotely induced by plasmon-exciton coupling. Plasmon-induced molecular motion may open an interesting playground to bridge the nanoscopic and mesoscopic worlds by combining molecular machines with nanoplasmonics to control directed motion of single molecules without the need for local probes.
