Proceedings of MATSUS23 & Sustainable Technology Forum València (STECH23) (MATSUS23)
DOI: https://doi.org/10.29363/nanoge.matsus.2023.297
Publication date: 22nd December 2022
Much research has shown that crystal structure and dimensionality in materials play an important role in determining their functional properties besides material composition itself. From this aspect, attention to two-dimensional (2D) materials with different three-dimensional (3D) crystallography has been given. The initial boost in research of 2D materials is largely attributed to graphene, which shows interesting phenomena such as super-electrical conductivity and high flexibility with good strength that are absent in bulk graphite. After the discovery of graphene, relevant research on single layers of transition metal dichalcogenides (TMDCs) with lamellar structures similar to that of graphite generated a second wave of interest. Accordingly, many unusual physical, chemical, or electronic properties compared to their bulk counter-parts have been reported. On the other hand, whereas much research effort has been devoted to graphene and TMDC, to date, relatively little research has been conducted in the area of 2D oxide nanosheets because most oxides have 3D crystal structures (it is noted that graphene and TMDC are inherently 2D structures, which are strongly bonded in plane but weakly bonded out of plane with van der Waals force). However, oxides have advantages such as chemical stability and low cost compared to the above materials, and thus, if synthesized to 2D structures, they can be another potential group with valuable functionality. In this presentation, the synthesis of 2D materials based on oxides and, further, their usage for various applications such as energy, sensor, and display will be dealt with.
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