Toward epitaxially grown two-dimensional crystal hetero-structures: Single and double MoS2/graphene hetero-structures by chemical vapor depositions

MY Lin, CE Chang, CH Wang, CF Su, C Chen… - Applied Physics …, 2014 - pubs.aip.org
Uniform large-size MoS 2/graphene hetero-structures fabricated directly on sapphire
substrates are demonstrated with layer-number controllability by chemical vapor deposition
(CVD). The cross-sectional high-resolution transmission electron microscopy (HRTEM)
images provide the direct evidences of layer numbers of MoS 2/graphene hetero-structures.
Photo-excited electron induced Fermi level shift of the graphene channel are observed on
the single MoS 2/graphene hetero-structure transistors. Furthermore, double hetero …