Two-dimensional antimonene single crystals grown by van der Waals epitaxy
By Jianping Ji, Xiufeng Song, Jizi Liu, Zhong Yan, Chengxue Huo, S. Zhang, Meng Su, L. Liao, Wenhui Wang, Zhenhua Ni and 2 more. Nature Communications, 2016
868 citations recorded by the source corpus.
Unlike the unstable black phosphorous, another two-dimensional group-VA material, antimonene, was recently predicted to exhibit good stability and remarkable physical properties. However, the synthesis of high-quality monolayer or few-layer antimonenes, sparsely reported, has greatly hindered the development of this new field. Here, we report the van der Waals epitaxy growth of few-layer antimonene monocrystalline polygons, their atomical microstructure and stability in ambient condition. The high-quality, few-layer antimonene monocrystalline polygons can be synthesized on various substrates, including flexible ones, via van der Waals epitaxy growth. Raman spectroscopy and transmission electron microscopy reveal that the obtained antimonene polygons have buckled rhombohedral atomic structure, consistent with the theoretically predicted most stable β-phase allotrope. The very high stability of antimonenes was observed after aging in air for 30 days. First-principle and molecular dynamics simulation results confirmed that compared with phosphorene, antimonene is less likely to be oxidized and possesses higher thermodynamic stability in oxygen atmosphere at room temperature. Moreover, antimonene polygons show high electrical conductivity up to 104 S m−1 and good optical transparency in the visible light range, promising in transparent conductive electrode applications. Several two-dimensional materials have been synthesized to date, yet elemental materials, consisting of individual atomic species, are still scarce. Here, the authors synthesize few-layer, monocrystalline polygons of antimonene via van der Waals epitaxy growth.
Subfields: Materials Chemistry, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/30343504a98072a13c3fc2fd35c0cde13ae00a18
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Citations in the corpus
- Vertical heterostructures based on SnSe2/MoS2 for high performance photodetectors (2017, background): “Similar with mica, monolayer-MoS2 has atomically clean surface without any dangling bonds at the ultra-smooth surface, so the migration energy barrier of SnSe2 on MoS2 is much lower than those with dangling bonds at the surface such as SiO2/ Si or Al2O3 [42].”
- Few-layer antimonene decorated microfiber: ultra-short pulse generation and all-optical thresholding with enhanced long term stability (2017, background): “Epitaxial growth is another attractive approach in fabricating antimonene [39].”