期刊
ACS NANO
卷 11, 期 5, 页码 4943-4949出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.7b01575
关键词
2D material; blue phosphorus; tellurium; STM; MBE
类别
资金
- Singapore MOE [MOE2015-T2-2-059 (R143-000-652-112)]
- National Key Basic Research Program of China [2015CB856505]
- National Natural Science Foundation of China [21573156]
Blue phosphorus, a newly proposed allotrope of phosphorus, represents a promising 2D material with predicted large tunable band gap and high charge-carrier mobility. Here, we report a simple method for the growth of quasi-free-standing single layer blue phosphorus on tellurium functionalized Au(111) by using black phosphorus as the precursor. In situ low-temperature scanning tunneling microscopy (LT-STM) measurements were used to monitor the growth of the single-layer blue phosphorus, which forms triangular structures arranged hexagonally on the tellurium layer. As revealed by in situ Xray photoelectron spectroscopy, LT-STM measurements, and density functional theory calculation, the blue phosphorus layer weakly interacts with the underlying tellurium layer.
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