Observation of individual molecules trapped on a nanostructured insulator
Observation of individual molecules trapped on a nanostructured insulator
复制标题
DOI：
10.1021/nl048693v
复制
发表时间：
2004-11-01
期刊：
影响因子：
10.8
通讯作者：
Gerber, C
中科院分区：
文献类型：
--
作者：
Nony, L;Gnecco, E;Gerber, C
首次通过非接触原子力显微镜在室温下解析了通过电子辐照在碱卤化物表面产生的单层深矩形凹坑中限制的有序极性分子。分子在宽度小于 15 nm 的凹坑内以特定方式自组装。相比之下，在平坦的平台上没有观察到有序的分子聚集体。得出了关于成核和有序机制的结论。捕获小至 2 nm 的凹坑开辟了一条寻址单分子的途径。
For the first time, ordered polar molecules confined in monolayer-deep rectangular pits produced on an alkali halide surface by electron irradiation have been resolved at room temperature by noncontact atomic force microscopy. Molecules self-assemble in a specific fashion inside pits of width smaller than 15 nm. By contrast no ordered aggregates of molecules are observed on flat terraces. Conclusions regarding nucleation and ordering mechanisms are drawn. Trapping in pits as small as 2 nm opens a route to address single molecules.