摘要
本工作提出了一种插层剂辅助的等离子体液相技术用于高 效地剥离高质量少层二维材料. 采用氯化锂为插层剂可快速剥离 石墨纸, 形成具有小D峰/G峰比(0.02)以及大碳氧比(31.5)的石墨烯 产物. 并且, 这种方法可以拓展至高质量少层2H相二硫化钼的制 备. 和传统的插层剂辅助电化学方法相比, 等离子体诱导产生的大 量活性粒子以及快速的电子转移, 使得插层剂辅助的等离子体液 相技术剥离的产物缺陷少且不会引入额外的基团. 这种可控的快 速剥离方法在制备其他各种类型的高质量二维材料方面都具有巨 大潜力.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (21975280), Shenzhen Science and Technology Research Funding (JCYJ20180507182530279), the Frontier Science Key Programs of Chinese Academy of Sciences (QYZDB-SSW-SLH034), Guangdong Special Support Program (2017TX04C096), the Leading Talents of Guangdong Province Program (00201520), and the City University of Hong Kong Strategic Research Grants (SRG, 7005105 and 7005264).
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Huang H and Gao M conducted the experiments and measurements; Wang J, Chu PK, Huang Y discussed the data and provided suggestions; Yu XF supervised and directed the project; All authors participated the general discussion.
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The authors declare no conflict of interest.
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Experimental details and supporting data are available in the online version of the paper.
Hao Huang received his BSc degree from the University of Electronic Science and Technology of China (2012) and MSc degree from Wuhan University (2015). Now, he is a PhD candidate at Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, China. His interests focus on the synthesis and applications of nanomaterials and 2D materials.
Ming Gao received his MSc degree from Donghua University (2012), and now he is a PhD candidate at Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, China. His interests focus on the preparation and surface modification of materials with low-temperature plasma technology.
Yifan Huang received his BSc and PhD degrees from Zhejiang University, China in 2005 and 2010 respectively. Then, he joined Zhejiang University as an assistant professor, and now he is a full professor at Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences. His research interest includes non-thermal plasma generation and application.
Xue-Feng Yu received his PhD degree in optics from Wuhan University (2008). He has been a senior research associate in the Department of Physics and Materials of City University of Hongkong. He is currently a professor at Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, China. His interests focus on the applied materials and interfaces including the synthesis of functional materials, materials interfaces, biochips.
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Huang, H., Gao, M., Wang, J. et al. Intercalator-assisted plasma-liquid technology: an efficient exfoliation method for few-layer two-dimensional materials. Sci. China Mater. 63, 2079–2085 (2020). https://doi.org/10.1007/s40843-020-1416-0
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DOI: https://doi.org/10.1007/s40843-020-1416-0