DataVXChemistry of MaterialsPaper
journal article·2022-12-13

Evolution of Low-Dimensional Phosphorus Allotropes on Ag(111)

Yihe Wang, Chenqiang Hua, Shuo Sun, Jian Gou, Sisheng Duan, Andrew T. S. Wee, Miao Zhou, Yu Li Huang, Wei Chen

Chemistry of Materials· Volume 34· Issue 23
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Source abstract

Abstract

Elemental two-dimensional (2D) materials exhibiting intriguing properties have great potential applications in next-generation electronics. However, controlling single-phase synthesis might be challenging due to the existence of various allotropes with comparable stability. Here, low-dimensional phosphorus (P) is used as a prototype for the understanding of the competition among a series of 0D–2D allotropes upon adsorption. With a combination of theoretical calculations and scanning tunneling microscopy, we find that the formation of P allotropes significantly depends on the bond angle, coordination number, and atomic density. As a result, P atoms tend to form black phosphorene (BP)-like chains and pentamer molecules at low atomic density and 2D buckling blue phosphorene at high density. In particular, a trigonal nanoribbon-like phase is observed with the confinement of the BP-like chains. The comprehensive understanding of the evolution of the elemental allotropes in low dimension could provide fundamental guidance for the construction of polymorphic quantum materials with novel functionalities.
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Research context

Nanomaterials

OpenAlex topics: 2D Materials and Applications · Graphene research and applications · Copper-based nanomaterials and applications

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

Affiliations

Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou350207, P. R. China

Department of Chemistry, National University of Singapore, 117543, Singapore

Beihang Hangzhou Innovation Institute Yuhang, Hangzhou310023, P. R. China

School of Physics, Beihang University, Beijing100191, P. R. China

Department of Physics, National University of Singapore, 117542, Singapore

National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou215123, P. R. China

Funding

Agency for Science, Technology and Research · Ministry of Education - Singapore · Natural Science Foundation of Fujian Province · Ministry of Industry and Information Technology of the People's Republic of China · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province

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