Any recommendation for analyzing graphene solution?
I want to compare graphene solution before my exfoliation process and after the process.
it is my pretest. Thus I just want to check if it was exfoliated or reduced about size.
AFM, TEM, Raman is excellent tool to analyze.
However, I think it usually use supernatant after centrifugation. Therefore, it has some limitations for whole solution.
Is there anyone who know other methods to analyze or technique to analyze whole sample with AFM,TEM,Raman?
Thanks for reading and replying in advance.
DLS can be useful to probe in situ the mean lateral size of the suspended flakes. However, to univocally attest the degree of exfoliation of the material, the techniques you have mentioned (TEM, AFM and above all Raman spectroscopy) remain the most suitable.
(Maybe this paper could help: doi:10.1088/0957-4484/24/26/265703)
You may also use SEM. By SEM you can look through larger area than with AFM or TEM that will give you more data about size of your graphene.
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