Journal
ACS OMEGA
Volume 7, Issue 22, Pages 18834-18839Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.2c01776
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Two-dimensional materials, which combine the advantages of individual building blocks and synergistic properties, have attracted great interest as a new paradigm in materials science. In this study, silicon-germanium nanosheets were synthesized using sonication, and their dispersibility was evaluated by comparing the solubility parameters.
Two-dimensional (2D) materials combine the collective advantages of individual building blocks and synergistic properties and have spurred great interest as a new paradigm in materials science. Especially, exfoliation of 2D semiconductive materials into nanosheets is of significance for both fundamental and potential applications. In this report, silicon-germanium (Si-Ge) nanosheets were synthesized by sonication of porous Si-Ge powder. The raw material Si-Ge powder was obtained by leaching Li from Li13Si2Ge2 with ethanol; after that, it was crystallized by heat treatment at 500 degrees C. The thickness and the lateral size of the exfoliated Si-Ge nanosheets were about 3 nm and a few microns, respectively. The nanosheets were dispersed in 55 different organic solvents, and their Hansen solubility parameters were calculated and compared with those of the end member (Si and Ge) nanosheets and graphene.
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