Abstract
CuSe monolayer possesses intrinsically patterned triangular nanopores with uniform size and can serve as a template for selective adsorptions for molecules and nanoclusters. Here, we prepare the CuSe monolayer on Cu(111) substrate by molecular beam epitaxy method and characterize CuSe monolayer in detail by bond-resolved scanning tunneling microscopy and non-contact atomic force microscopy. The results further confirm the honeycomb feature and triangular nanopores existence of CuSe monolayer. In addition, scanning tunneling spectroscopy measurements reveal the semiconducting features of CuSe monolayer with a band gap of 2.40 eV. This work helps to understand the structure and electronic properties of those intrinsically patterned two-dimensional materials.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (Grant No. 61901200), the Strategic Priority Research Program of Chinese Academy of Sciences (XDB30010000), the Yunnan Province Science and Technology Plan Project (Grant No. 2019FD041), the Reserve Talents for Yunnan Young and Middle Aged Academic and Technical Leaders (2017HB010), the China Postdoctoral Science Foundation and the Yunnan Province Postdoctoral Science Foundation and the Analysis and Testing Fund of KUST (2019M20182230034).
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Wang, X., Ruan, Z., Du, R. et al. Structural characterizations and electronic properties of CuSe monolayer endowed with triangular nanopores. J Mater Sci 56, 10406–10413 (2021). https://doi.org/10.1007/s10853-021-05959-2
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DOI: https://doi.org/10.1007/s10853-021-05959-2