不久前发现的金属掺杂多环芳烃类有机超导体以其简单的分子结构和可能的高转变温度获得了广泛的关注和研究。然而至今为止对这类超导体的许多基本性质的认识尚不清楚。之前的一些实验研究因样品制备或研究手段等的限制，使得超导相的结构，精确的掺杂量，金属和有机分子之间的相互作用细节与电荷转移量等基本问题都没有得到统一的认识，甚至在有机分子掺杂后是否会得到金属态都有相反的结果出现。..因扫描隧道显微术（STM）在此类研究中的独特优势，申请人计划结合相应实验和理论计算来系统研究这类材料。样品将在真空腔内原位制备。结合STM的实空间成像，扫描隧道谱（STS）和垂直原子搬运技术可以直接确定超导相及其结构和性质并确定精确的掺杂量。第一性原理计算的加入可以进一步确定掺杂细节包括电荷转移等问题。..在这些研究的基础上我们将延伸探讨此类超导体的超导机制，为推动这类超导体的应用和探索更高转变温度的此类有机超导体提供依据。

Metal doped polycyclic aromatic hydrocarbons are a newly discovered class of superconductors, which attracts broad interests because of their simple structures and possible high superconducting transition temperature (Tc). However, the basic properties of this class of superconductors are still unknown. Due to the limitations of the sample preparation and studying methods in the previous experimental studies, the superconducting phase, accurate doping concentration, and interaction details between metal atoms and hydrocarbon molecules are still not clear. Whether a metallic state will appear during doping is still in debate...Scanning tunneling microscopy (STM) experiments are quite suitable for solving these questions. As the sample can be carefully prepared in vacuum, single crystalline domains can be found on surfaces with single or multiple layers. A crystalline sample can help to settle the mentioned debates. High resolution STM images can be used to help identifying the structures of the domains in real space while a scanning tunneling spectroscopy (STS) measurement can provide the information of the transport properties as well as the superconductivity. With the vertical atomic manipulation technique we can even demonstrate the doping process. Through combining the first principles calculations, we can further identify the interaction properties between metal atoms and the hydrocarbon molecules, including the details of charge transfer...Through our studies, we will bring new understandings to the superconducting mechanism of this newly found hydrocarbon superconductors and provide background knowledge for their applications and the exploration of higher Tc hydrocarbon superconductors.