Reversible Hydrogenation of Deuterium-Intercalated Quasi-Free-Standing Graphene on SiC(0001)

François C. Bocquet (1) , Régis Bisson (2) , Jean-Marc Themlin (1) , J.-M. Layet (2) , Thierry Angot (2)

1 IM2NP - Institut des Matériaux, de Microélectronique et des Nanosciences de Provence
2 PIIM - Physique des interactions ioniques et moléculaires

Hydrogenation of deuterium-intercalated quasi-free-standing monolayer graphene on SiC(0001) is obtained and studied with low-energy electron diffraction and high-resolution electron energy loss spectroscopy. While the carbon honeycomb structure remains intact, it is shown that a significant band gap opens in the hydrogenated material. Vibrational spectroscopy evidences for hydrogen chemisorption on the quasi-free-standing graphene is provided and its thermal stability is studied.

Domaines: Chimie-Physique [physics.chem-ph]; Matériaux; Chimie théorique et/ou physique; Science des matériaux [cond-mat.mtrl-sci]

François C. Bocquet, Régis Bisson, Jean-Marc Themlin, J.-M. Layet, Thierry Angot. Reversible Hydrogenation of Deuterium-Intercalated Quasi-Free-Standing Graphene on SiC(0001). Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2012, 85, pp.201401(R). ⟨10.1103/PhysRevB.85.201401⟩. ⟨hal-00834745⟩