Fabrication techniques for graphene: mechanical cleavage, CVD, GO, CNT and bottom-up methods.
The best for what? If you mean best in terms of easiness to prepare with the highest quality, then mechanical exfoliation is your best friend.
If you want large-area fabrication with more technology potential regarding applications and scalability, then you would like to give CVD a shot.
Yap, you also could try for chemical methods for the functionalization of graphene.
As Mr. Raul said, it depends on your research goal because various methods has various advantages and/or disadvantages.
Thanks.
Hello Hamdi, may be this review will be useful for you
https://www.researchgate.net/publication/283716032_REVIEW_ON_PREPARATION_METHODS_OF_GRAPHENE_WITH_EXCELLENT_QUALITY_AND_LESS_DEFECTS
Research REVIEW ON PREPARATION METHODS OF GRAPHENE WITH EXCELLENT QUA...
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