Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China.
College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, 518060, China.
Small. 2023 Jun;19(24):e2300413. doi: 10.1002/smll.202300413. Epub 2023 Mar 15.
Exploring supramolecular architectures at surfaces plays an increasingly important role in contemporary science, especially for molecular electronics. A paradigm of research interest in this context is shifting from 2D to 3D that is expanding from monolayer, bilayers, to multilayers. Taking advantage of its high-resolution insight into monolayers and a few layers, scanning tunneling microscopy/spectroscopy (STM/STS) turns out a powerful tool for analyzing such thin films on a solid surface. This review summarizes the representative efforts of STM/STS studies of layered supramolecular assemblies and their unique electronic properties, especially at the liquid-solid interface. The superiority of the 3D molecular networks at surfaces is elucidated and an outlook on the challenges that still lie ahead is provided. This review not only highlights the profound progress in 3D supramolecular assemblies but also provides researchers with unusual concepts to design surface supramolecular structures with increasing complexity and desired functionality.
探索表面的超分子结构在当代科学中扮演着越来越重要的角色，特别是在分子电子学领域。在这方面，研究的一个范例是从二维到三维的转变，从单层、双层扩展到多层。扫描隧道显微镜/光谱学 (STM/STS) 利用其对单层和少数层的高分辨率洞察力，成为分析固体表面上此类薄膜的有力工具。本综述总结了 STM/STS 研究层状超分子组装及其独特电子性质的代表性工作，特别是在液-固界面。阐述了表面 3D 分子网络的优越性，并对未来仍面临的挑战进行了展望。本综述不仅突出了 3D 超分子组装的深刻进展，还为研究人员提供了不寻常的概念，以设计具有越来越复杂和所需功能的表面超分子结构。
