Lateral two-dimensional (2D) heterostructures have great potential for device engineering at the atomistic scale. Their production is hindered by difficulties in obtaining atomically sharp interface free from intermixture. Here we report the continuous construction of a lateral heterostructure using blue phosphorene and tetrafluoro-tetracyanoquinodimethane (F 4 TCNQ) as the building blocks. The lateral heterostructure is achieved by linking the semiconducting F 4 TCNQ-Au metal organic framework and the metallic blue phosphorene-Au network via Au adatoms. The structural and electronic properties of the heterostructure have been investigated by means of scanning tunneling microscopy and spectroscopy (STM/S), complemented by density functional theory (DFT) calculations, demonstrating a structurally and electrically abrupt interface. Our approach offers the possibility of high flexibility and control that can be extended to other metal-organic species and 2D materials, establishing a foundation for the development of atomically thin in-plane superlattice and devices.

中文翻译：

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金吸附原子连接的二维异质结构横向外延生长

横向二维（2D）异质结构在原子尺度上具有巨大的器件工程潜力。它们的生产受到难以获得没有混合的原子尖锐界面的阻碍。在这里，我们报告了使用蓝色磷烯和四氟四氰基醌二甲烷 (F 4 TCNQ) 作为构建单元的横向异质结构的连续构建。横向异质结构是通过将半导体 F 4 TCNQ-Au 金属有机框架和金属蓝色磷烯-Au 网络通过 Au 吸附原子连接来实现的。通过扫描隧道显微镜和光谱学 (STM/S) 研究了异质结构的结构和电子特性，并辅以密度泛函理论 (DFT) 计算，证明了结构和电突变界面。