nn0c00822_si_001.pdf (1.98 MB)
Synthesis of Monolayer Blue Phosphorus Enabled by Silicon Intercalation
journal contribution
posted on 2020-03-06, 19:07 authored by Jia Lin Zhang, Songtao Zhao, Shuo Sun, Honghe Ding, Jun Hu, Yuliang Li, Qian Xu, Xiaojiang Yu, Mykola Telychko, Jie Su, Chengding Gu, Yue Zheng, Xu Lian, Zhirui Ma, Rui Guo, Jiong Lu, Zhe Sun, Junfa Zhu, Zhenyu Li, Wei ChenThe
growth of entirely synthetic two-dimensional (2D) materials
could further expand the library of naturally occurring layered solids
and provide opportunities to design materials with finely tunable
properties. Among them, the synthesis of elemental 2D materials is
of particular interest as they represent the chemically simplest case
and serve as a model system for exploring the on-surface synthesis
mechanism. Here, a pure atomically thin blue phosphorus (BlueP) monolayer
is synthesized via silicon intercalation of the BlueP–Au
alloy on Au(111). The intercalation process is characterized at the
atomic scale by low-temperature scanning probe microscopy and further
corroborated by synchrotron radiation-based X-ray photoelectron spectroscopy
measurements. The evolution of the band structures from the BlueP–Au
alloy into Si-intercalated BlueP are clearly revealed by angle-resolved
photoemission spectroscopy and further verified by density functional
theory calculations.
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band structureson-surface synthesis mechanismtunable properties2 D materialsMonolayer Blue Phosphorus Enabledscanning probe microscopyintercalation processSi-intercalated BluePSilicon Intercalationsynchrotron radiation-based X-ray photoelectron spectroscopy measurementsangle-resolved photoemission spectroscopymodel systemtheory calculationssilicon intercalationdesign materials
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