journal article·2020-12-22Open access

Kinetics-Limited Two-Step Growth of van der Waals Puckered Honeycomb Sb Monolayer

Zhi-Qiang Shi, Huiping Li, Qian-Qian Yuan, Cheng-Long Xue, Yong-Jie Xu, Yang-Yang Lv, Zhen-Yu Jia, Yanbin Chen, Wenguang Zhu, Shao-Chun Li

ACS Nano· Volume 14· Issue 12

Abstract

Puckered honeycomb Sb monolayer, the structural analog of black phosphorene, has been recently successfully grown by means of molecular beam epitaxy. However, little is known to date about the growth mechanism for such a puckered honeycomb monolayer. In this study, by using scanning tunneling microscopy in combination with first-principles density functional theory calculations, we unveil that the puckered honeycomb Sb monolayer takes a kinetics-limited two-step growth mode. As the coverage of Sb increases, the Sb atoms first form the distorted hexagonal lattice as the half layer, and then the distorted hexagonal half-layer transforms into the puckered honeycomb lattice as the full layer. These results provide the atomic-scale insight in understanding the growth mechanism of puckered honeycomb monolayer and can be instructive to the direct growth of other monolayers with the same structure.
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Research context

OpenAlex topics: 2D Materials and Applications · Graphene research and applications · Advanced Thermoelectric Materials and Devices

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China

International Center for Quantum Design of Functional Materials (ICQD), Hefei National Laboratory for Physical Sciences at the Microscale, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China

Key Laboratory of Strongly-Coupled Quantum Matter Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China

National Laboratory of Solid State Microstructures, Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, China

Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China

Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University, Nanjing 210093, China

Funding

Ministry of Education of the People's Republic of China · Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Chinese Academy of Sciences · Anhui Initiative in Quantum Information Technologies

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