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Growth of Quasi-Free-Standing Single-Layer Blue Phosphorus on Tellurium Monolayer Functionalized Au(111)

TitleGrowth of Quasi-Free-Standing Single-Layer Blue Phosphorus on Tellurium Monolayer Functionalized Au(111)
Publication TypeJournal Article
Year of Publication2017
AuthorsGu, Chengding, Zhao Songtao, Zhang Jia Lin, Sun Shuo, Yuan Kaidi, Hu Zehua, Han Cheng, Ma Zhirui, Wang Li, Huo Fengwei, Huang Wei, Li Zhenyu, and Chen Wei
JournalACS Nano
Volume11
Pagination4943–4949
Date Published05/2017
ISSN1936-0851
Keywords2D material, ag(111), augmented-wave method, black phosphorus, blue phosphorus, electronic-structure, graphene, mbe, phase, silicene, stability, stm, tellurium
Abstract

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.

DOI10.1021/acsnano.7b01575

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