Local electronic structure of single molecules and molecular nanostructures coupled to monolayers of transition metal dichalcogenides (A14*)

单分子的局部电子结构和与单层过渡金属二硫属化物 (A14*) 耦合的分子纳米结构

• 批准号: 427244821
• 金额: --
• 依托单位: Institut für Experimentalphysik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/427244821?language=en
• 关键词: Local; electronic; structure; single; molecules

This project aims at resolving fundamental processes of energy level alignment, charge transfer and screening at the interface of an organic overlayer in contact to a monolayer of a transition metal dichalcogenide (TMDC). Employing scanning tunneling microscopy (STM), atomic force microscopy (AFM) and their related spectroscopies we resolve these properties with atomic-scale resolution. Thus, we will be able to precisely identify screening lengths, which are significantly larger in two-dimensional materials than in the traditional three-dimensional counterparts. Furthermore, we will probe and create individual defects and investigate how they locally modify the energy level alignment of attached molecules.

该项目旨在解决有机覆盖层与过渡金属二硫化物（TMDC）单层接触界面上的能级排列、电荷转移和筛选的基本过程。利用扫描隧道显微镜（STM）、原子力显微镜（AFM）及其相关的光谱学，我们在原子尺度上解析了这些性质。因此，我们将能够精确地确定筛选长度，在二维材料中，筛选长度明显大于传统的三维材料。此外，我们将探测和创建单个缺陷，并研究它们如何局部改变附着分子的能级排列。