Centre d’Élaboration de Matériaux et d’Etudes Structurales

Accueil > Recherche > M3 : Matériaux Multi-échelles Multifonctionnels > Carbones nanostructurés > First-time synthesis of a new family of 2D carbon materials : diamane, diamanoids, and diamanoid/graphene hybrids


Diamanoïds are nanosized sp3 carbon films whose possible occurrence was predicted in 2009 as the result from the hydrogenation of graphene (sp2 carbon) films. They exhibit a tailorable gap in function of the number of layers, which may allow ruling out the intrinsic issue related to graphene, which is a zero-gap material and thereby is useless as such for electronic applications. The combined efforts of the Laboratorio Nanociencias from the PUCMM (Dominican Republic), CEMES and LPCNO (Toulouse), and the University of Manitoba (Canada) have resulted in the successful synthesis of diamanoïds. We have used electron microscopy and Raman spectrometry in our laboratory. We are interested to go further in the study of graphene bi and tri-layers.

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(a) et (b) : Modèle (marron = C ; rosé = H) d’une portion d’un film hybride diamanoïde/graphène à 6 couches (deux couches L2 puis L1 sont à rajouter sous L4). (c) La structure de L1 + L2 est ici celle du diamant vue selon [111]. L3 et L4 sont graphéniques, mais L2 présente des liaisons pz pendantes (en jaune dans (b)) qui interagissent fortement avec L3.

Collaboration with F. Piazza, PUCMM