Experimental and theoretical evidence for compression-induced diamondization of few-layer graphene is reported. Ab initio calculations predict that hydroxyl groups stabilize the sp3 hybridization of the two topmost carbon layers, creating a single layer of hydroxylated diamond, or diamondol, when graphene layers are compressed in the presence of water. Electric force microscopy measurements reveal a compression-induced charging inhibition of bilayer and multilayer graphene.
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Barboza et al. (2011) studied this question.
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