具有强层间耦合的Cu3BHT-石墨烯范德华瓦异质结构
A Cu3BHT-Graphene van der Waals Heterostructure with Strong Interlayer Coupling
AI总结：
研究展示了Cu3BHT-石墨烯范德华异质结构中的强层间耦合，通过界面电荷转移实现，为高性能量子光电子学器件提供了新途径。
摘要：
二维范德华异质结结构（2D vdWhs）因其引人入胜的物理性质而备受关注，这些性质由构成单元的单分子层及其层间耦合决定。然而，典型的无机2D vdWhs属于弱耦合区域，限制了对于开发高性能量子光电子学至关重要的界面电荷流动。在此，我们展示了Cu3bht（bht =苯六硫醇）-石墨烯vdWhs中的强层间耦合，这是一种以显著层间电荷转移为特征的有机-无机双层结构。具有kagome晶格的单层cu3bht在水面上合成，然后与石墨烯耦合产生cm2尺度的2D vdWh。光谱和电学研究以及理论计算表明，接触时，从单层cu3bht到石墨烯的显著空穴转移。这是强层间耦合的特征指纹。本研究揭示了将高π共轭2D配位聚合物（2DCPs）整合到2D vdWhs中以探索有趣的物理现象的巨大潜力。
英文摘要：
Two dimensional van der Waals heterostructures (2D are of significant interest due to their intriguing physical properties that are critically defined by the constituent monolayers and their interlayer coupling . However, typical inorganic 2 D vdWhs fall into the weakly coupled region, limiting efficient interfacial charge flow crucial for developing high performance quantum opto electronics. Here, we demonstrate strong interlayer coupling in Cu3 BHT (BHT = benzenehexathiol) graphene vdWhs an organic inorganic bilayer characterized by prominent interlayer charge transfer Monolayer Cu3 BHT with a Kagome lattice is synthesized on the water surface and then coupled with graphene to produce a cm2 scale 2D vdWh. Spectroscopic and electrical studies, along with theoretical calculation s show significant hole transfer from monolayer Cu3 BHT to graphene upon contact , being characteristic fingerprints for strong interlayer coupling This study unveils the great potential of integrating highly pi-conjugated 2D coordination polymers (2DCPs) into 2D vdWhs to explor e intriguing physical phenomena.
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