| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Regular Arrangement of Two-Dimensional Clusters of Blue Phosphorene on Ag(111) |
| Shuo Yang1,2†, Zhenpeng Hu3†, Weihai Wang1, Peng Cheng1,2*, Lan Chen1,2*, and Kehui Wu1,2 |
1Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
2School of Physics, University of Chinese Academy of Sciences, Beijing 100049, China
3School of Physics, Nankai University, Tianjin 300071, China
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| Cite this article: |
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Shuo Yang, Zhenpeng Hu, Weihai Wang et al 2020 Chin. Phys. Lett. 37 096803 |
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Abstract Two-dimensional (2D) blue phosphorene with a honeycomb structure is the phosphorus analog of graphene, and is regarded as a promising 2D material with a large tunable band gap and high charge-carrier mobility. Here, using the molecular beam epitaxy method, we synthesize monolayer blue phosphorene on the Ag(111) surface. Combined with first-principles calculations, scanning tunneling microscopy measurements reveal that the blue phosphorene on the Ag(111) surface consists of 2D clusters with a buckling $1\times 1$ lattice, arranged regularly on the Ag(111). The formation of these phosphorus clusters stems from the strain modulation induced by the lattice mismatch between blue phosphorene and the Ag(111) substrate. Moreover, x-ray photoelectron spectroscopy measurements are performed to study the instability of the blue phosphorene clusters in air. The realization of regular nanoclusters of blue phosphorene with unique sizes and morphology provides an ideal platform for the exploration of the quantum physical properties and applications of blue phosphorene.
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Received: 03 June 2020
Published: 01 September 2020
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| PACS: |
68.37.-d
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(Microscopy of surfaces, interfaces, and thin films)
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68.37.Ef
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(Scanning tunneling microscopy (including chemistry induced with STM))
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81.05.-t
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(Specific materials: fabrication, treatment, testing, and analysis)
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81.07.-b
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(Nanoscale materials and structures: fabrication and characterization)
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| Fund: Supported by the National Key Research and Development Program of China (Grant Nos. 2018YFE0202700, 2016YFA0300904 and 2016YFA0202301), the National Natural Science Foundation of China (Grant Nos. 11674366, 11761141013, 11674368 and 21773124), the Beijing Natural Science Foundation (Grant No. Z180007), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB30000000). |
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