Department of Applied Physics, Aalto University School of Science , P.O. Box 15100, 00076 Aalto, Finland.
ACS Nano. 2013 Dec 23;7(12):11121-8. doi: 10.1021/nn404840h. Epub 2013 Oct 25.
Using low-temperature scanning tunneling microscopy, we show that monolayer hexagonal boron nitride (h-BN) on Ir(111) acts as ultrathin insulating layer for organic molecules, while simultaneously templating their self-assembly. Tunneling spectroscopy experiments on cobalt phthalocyanine (CoPC) reveal narrow molecular resonances and indicate that the charge state of CoPC is periodically modulated by the h-BN moiré superstructure. Molecules in the second layer show site-selective adsorption behavior, allowing the synthesis of molecular dimers that are spatially ordered and inaccessible by usual chemical means.
使用低温扫描隧道显微镜，我们展示了 Ir(111) 上的单层六方氮化硼 (h-BN) 作为有机分子的超薄绝缘层，同时对其自组装进行模板化。在酞菁钴 (CoPC) 上进行的隧道光谱实验揭示了窄分子共振，并表明 CoPC 的电荷状态被 h-BN 摩尔超结构周期性调制。第二层中的分子表现出选择性吸附行为，允许合成空间有序且通常化学方法无法获得的分子二聚体。
