He Yang, Kröger Jörg, Wang Yongfeng
Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing, 100871, P.R. China.
Institut für Physik, Technische Universität Ilmenau, 98693, Ilmenau, Germany.
Chemphyschem. 2017 Mar 3;18(5):429-450. doi: 10.1002/cphc.201600979. Epub 2017 Jan 18.
This Minireview focuses exclusively on work with scanning tunneling microscopy to study the self-assembled multilayer films (SAMTs) of organic molecules. The π-conjugated organic molecules form different structures within different monolayers on various substrates. The interplay between molecule-substrate and intermolecular interactions plays a key role in determining the stacking mode of organic multilayer films. Different substrates strongly influence the organic-film growth and electronic properties of the organic molecules. Geometric and electronic structures of SAMTs are important factors that may determine device performance. In addition to the inorganic interface, this Minireview addresses the organic-organic interface. Homo- and hetero-SAMTs of organic molecules are also considered. The subtle interplay between structural and electronic characteristics, on one hand, and functionality and reactivity, on the other hand, are highlighted.
本综述仅聚焦于利用扫描隧道显微镜研究有机分子自组装多层膜(SAMTs)的工作。π共轭有机分子在各种衬底上的不同单分子层内形成不同结构。分子-衬底相互作用和分子间相互作用之间的相互影响在决定有机多层膜的堆积模式中起着关键作用。不同的衬底对有机膜的生长和有机分子的电子性质有强烈影响。SAMTs的几何结构和电子结构是可能决定器件性能的重要因素。除了无机界面,本综述还探讨了有机-有机界面。同时也考虑了有机分子的同型和异型SAMTs。一方面强调了结构和电子特性之间,另一方面强调了功能和反应性之间的微妙相互影响。