期刊
NANO LETTERS
卷 23, 期 17, 页码 8378-8384出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.3c02778
关键词
2D material; germanium oxide; aromaticity; optoelectronic device; first-principle calculation
The discovery of graphene and its excellent properties has led to the search for more 2D materials. Understanding the structures and properties of the smallest repeating units is crucial for the design of 2D materials. This study reports the potential of a Ge3O3 cluster to construct a germanium oxide 2D nanostructure.
The discovery of graphene and its excellent properties inspired the search for more two-dimensional (2D) materials. Understanding the structures and properties of the smallest repeating units as well as crystal 2D materials is helpful for designing 2D materials. As germanium tends to form three-dimensional structures, the preparation of germanium-based 2D nanomaterials is still a challenge. Herein, we report a Ge3O3 cluster with the potential to construct a germanium oxide 2D nanostructure. We conduct a combined anion photoelectron spectroscopy and theoretical study onGe(3)O(3) -/0. The structure of Ge3O3 - is a Cs symmetric nonplanar six-membered ring, while that of Ge3O3 is a D3h symmetric planar six-membered ring. Chemical bonding analyses reveal that Ge3O3 exhibits p aromaticity. First-principle results suggest that a buckled honeycomb 2D nanostructure with a wide band gap of 3.14 eV may be produced based on Ge3O3 , which is promising in optoelectronic applications especially in blue, violet, and ultraviolet regions.
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