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

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