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The design and synthesis of novel two‐dimensional (2D) materials that possess robust structural stability and unusual physical properties may open up enormous opportunities for device and engineering applications. Herein, a 2D sumanene lattice that can be regarded as a derivative of the conventional Kagome lattice is proposed. The tight‐binding analysis demonstrates sumanene lattice contains two sets...
Edge Reconstruction
An unprecedented U‐edge reconstruction with the lowest energy is revealed to occur easily in the bilayer phosphorene. Such U‐edge reconstruction exhibits unexpectedly ultrafast electronic and thermal transport, nearly without edgeless scattering. More information can be found in article number 2105130 by Junfeng Gao, Gang Zhang, and co‐workers.
Edge termination plays a vital role in determining the properties of 2D materials. By performing compelling ab initio simulations, a lowest‐energy U‐edge [ZZ(U)] reconstruction is revealed in the bilayer phosphorene. Such reconstruction reduces 60% edge energy compared with the pristine one and occurs almost without an energy barrier, implying it should be the dominating edge in reality. The electronic...
Uncovering the thickness‐dependent electronic property and environmental stability for 2D materials are crucial issues for promoting their applications in high‐performance electronic and optoelectronic devices. Herein, the extrahigh air stability and giant tunable electronic bandgap of chemical vapor deposition (CVD)–derived few‐layer PdSe2 on Au foils, by using scanning tunneling microscope/spectroscopy...
In article number 2000754, Jijun Zhao, Yanfeng Zhang, and co‐workers achieve onsite characterizations of the atomic‐scale structure of few‐layer PdSe2 synthesized on Au foils, and establish a one‐to‐one correspondence between the electronic bandgap and thickness from bilayer to bulk by using scanning tunneling microscopy/spectroscopy. The robust air stability of PdSe2 is also demonstrated by the atom‐scale...
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