low-temperature scanning tunneling microscope/ atomic force microscope

低温扫描隧道显微镜/原子力显微镜

• 批准号: 449452449
• 金额: --
• 依托单位: Technische Universität Dresden
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/449452449?language=en
• 关键词: low; temperature; scanning; tunneling; microscope

The on-surface synthesis is a novel research area, which synergizes chemistry, physic and material science. In particular, the on-surface synthesis has been developing as a promising bottom-up synthesis for the fabrication of well-defined and atomically precise nanostructures. In contrast to the classical organic solution syntheses, the on-surface synthesis allows the investigation and characterization of novel nanostructures via low-temperature scanning tunneling– and atomic force microscopy. This proposed low-temperature scanning tunneling– and atomic force microscope will push the on-surface synthesis and characterization of unprecedented nanostructures. Although both proposers have excellent experiences in on-surface synthesis, the scientific fields of both working groups are complementary. Due to a strong and already established cooperation, both groups cover the whole spectrum of the on-surface synthesis, including organic synthesis of the precursor molecules. Besides the two main proposers, four other research groups are already interested in using this instrument and strongly support this proposal. All six research groups are strongly connected and have collaborations due to the proposed Collaborative Research Centre "Chemistry of Synthetic Two-Dimensional Materials". However, other interested research groups are highly welcome to use the instrument. The research focus of the proposed instrument is the on-surface synthesis of novel two-dimensional polymers (including two-dimensional organic covalent polymers and metal-organic polymers), graphene nanoribbons, polycyclic aromatic hydrocarbons as well as molecular switches, machines and logic gates for electronics. Besides the synthesis and corresponding visualization via low-temperature scanning tunneling – and atomic force microscope, the investigations of the electronic properties, such as band gap or energy levels of the orbital frontiers, will be investigated by scanning tunnel spectroscopy. A further focus of the proposed device will be the development of novel reaction methodologies to form long graphene nanoribbons and highly crystalline two-dimensional polymers on the surface.

表面合成是一个新兴的研究领域，它融合了化学、物理和材料科学。特别是，表面合成已经发展成为一种有前景的自下而上合成方法，用于制造明确且原子精确的纳米结构。与经典的有机溶液合成相比，表面合成允许通过低温扫描隧道和原子力显微镜来研究和表征新型纳米结构。这种提出的低温扫描隧道和原子力显微镜将推动前所未有的纳米结构的表面合成和表征。尽管两位提议者在表面合成方面都有丰富的经验，但两个工作组的科学领域是互补的。由于已经建立的强有力的合作，两个小组涵盖了表面合成的整个范围，包括前体分子的有机合成。除了两个主要提议者之外，其他四个研究小组已经对使用该工具感兴趣并强烈支持该提议。由于拟议的合作研究中心“合成二维材料化学”，所有六个研究小组都紧密联系并进行合作。然而，我们非常欢迎其他感兴趣的研究小组使用该仪器。该仪器的研究重点是新型二维聚合物（包括二维有机共价聚合物和金属有机聚合物）、石墨烯纳米带、多环芳烃以及分子开关、机器和电子逻辑门的表面合成。除了通过低温扫描隧道和原子力显微镜进行合成和相应的可视化之外，还将通过扫描隧道光谱来研究电子特性（例如带隙或轨道前沿的能级）。该装置的另一个重点是开发新的反应方法，以在表面形成长石墨烯纳米带和高度结晶的二维聚合物。