MASTROPASQUA , Chiara

Graphene, a single layer of sp2-bonded carbon atoms in a hexagonal lattice, has fascinated scientists since pioneering works by Andre Geim and Walt de Heer's groups in 2004. Graphene's exceptional properties, including high electron mobility and optical transparency, make it promising for various applications in electronics and...

Propane/hydrogen CVD growth of graphene on SiC, studied since 2010 [1], consists simply to grow graphene from propane in a hydrogen/argon atmosphere. The presence of hydrogen in the gas phase promotes Si excess on the surface, hence making impossible graphene growth without propane flow [2]. This makes propane/hydrogen CVD very different from...

International audience

Propane/hydrogen CVD growth of graphene on SiC, studied since 2010,1 consists simply to grow graphene from propane in a hydrogen/argon atmosphere. The presence of hydrogen in the gas phase promotes Si excess on the surface, hence making impossible graphene growth without propane flow.2 This makes propane/hydrogen CVD very different from silicon...

Epitaxial growth of WTe2 offers significant advantages, including the production of high-qualityfilms, possible long range in-plane ordering and precise control over layer thicknesses. However,the mean island size of WTe2 grown by molecular beam epitaxy (MBE) in litterature is only a fewtens of nanometers, which is not suitable for an...