van der Waals Epitaxy of MoS2 Layers Using Graphene As Growth Templates

• DOI: 10.1021/nl204562j
• Publication Date: 2012-05-29T15:26:41Z
• Authors: Yumeng Shi; Wu Zhou; Ang-Yu Lu; Wenjing Fang; Yi-Hsien Lee; Allen Long Hsu; Soo Min Kim; Ki Kang Kim; Hui Ying Yang; Lain-Jong Li; Juan-Carlos Idrobo; Jing Kong
• Keywords: Surface Modification

We present a method for synthesizing MoS2/Graphene hybrid heterostructures with growth template of graphene-covered Cu foil. Compared to other recent reports,(1, 2) much lower temperature 400 °C is required this procedure. The chemical vapor deposition MoS2 on the graphene surface gives rise single crystalline hexagonal flakes typical lateral size ranging from several hundred nanometers micrometers. precursor (ammonium thiomolybdate) together solvent was transported by carrier gas at room temperature, which then followed post annealing. At an elevated self-assembles form epitaxially via thermal decomposition. With higher amount delivered onto surface, continuous film can be obtained. This simple provides unique approach synthesis and functionalization graphene. synthesized two-dimensional hybrids possess great potential toward development new optical electronic devices as well wide variety newly synthesizable compounds catalysts.