Evidence for a pressure-induced phase transition of few-layer graphene to 2D diamond

16 Oct 2019 Martins Luiz G. Pimenta Silva Diego L. Smith Jesse S. Lu Ang-Yu Su Cong Hempel Marek Occhialini Connor Ji Xiang Pablo Ricardo Alencar Rafael S. Souza Alan C. R. de Oliveira Alan B. Batista Ronaldo J. C. Palacios Tomás Matos Matheus J. S. Mazzoni Mário S. C. Comin Riccardo Kong Jing Cançado Luiz G.

We unveil the diamondization mechanism of few-layer graphene compressed in the presence of water, providing robust evidence for the pressure-induced formation of 2D diamond. High-pressure Raman spectroscopy provides evidence of a phase transition occurring in the range of 4-7 GPa for 5-layer graphene and graphite... (read more)

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  • MATERIALS SCIENCE