Two-Dimensional Metal-Phosphorus Network

Two-dimensional (2D) non-covalent and covalent networks are interesting because their tailorable architectures offer fresh applications in sensing, catalysis, gas storage, and topological structures. So far, rational design of these networks has been explored exclusively involving organic molecules based on the concept of modular assembly. Here, we demonstrate that, by using molecular-beam epitaxy, we can isolate inorganic blocks to form a 2D porous gold-phosphorus network (AuPhoN), wherein blue phosphorene (blueP) subunits are linked by gold atoms on an Au surface. We provide evidence that such metal-phosphorus networks are tunable in their chemical functionalities and electronic properties by simply altering the linkers and subunits. Our work provides insights to tailor low-dimension architectures of inorganic networks that maintain good long-range order and are stable over a wide temperature range.