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期刊名称: Nanotechnology
Volume:24    Issue:26    
ISSN:0957-4484

Measuring the lateral size of liquid-exfoliated nanosheets with dynamic light scattering期刊论文

作者: Lotya Mustafa Rakovich Aliaksandra Donegan John F Coleman Jonathan N
DOI:10.1088/0957-4484/24/26/265703

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被引频次: 97
出版者: IOP PUBLISHING LTD
期刊名称: Nanotechnology
ISSN: 0957-4484
卷期: Volume:24    Issue:26
语言: English
摘要: We have developed an in situ method to estimate the lateral size of exfoliated nanosheets dispersed in a liquid. Using standard liquid exfoliation and size-selection techniques, we prepared a range of dispersions of graphene, MoS2 and WS2 nanosheets with different mean lateral sizes. The mean nanosheet length was measured using transmission electron microscopy (TEM) to vary from similar to 40 nm to similar to 1 mu m. These dispersions were characterized using a standard dynamic light scattering (DLS) instrument. We found a well-defined correlation between the peak of the particle size distribution as outputted by the DLS instrument and the nanosheet length as measured by TEM. This correlation is consistent with the DLS instrument outputting the radius of a sphere with volume equal to the mean nanosheet volume. This correlation allows the mean nanosheet length to be extracted from DLS data.
相关主题: PHYSICS, APPLIED, FRACTIONATION, MOS2, MATERIALS SCIENCE, MULTIDISCIPLINARY, NANOSCIENCE & NANOTECHNOLOGY, GRAPHITE, PHASE EXFOLIATION, BORON-NITRIDE NANOSHEETS, SOLUBILITY PARAMETERS, TRANSITION-METAL DICHALCOGENIDES, SOLVENT EXFOLIATION, 2-DIMENSIONAL NANOSHEETS, GRAPHENE SOLUTIONS,

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