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We explore the defect formation on single‐layer graphene partially suspended over a microcavity upon etching by a focused electron beam in a reactive oxygen atmosphere. The formation of oxygenated defects in an area of several μm2 around the cut is studied by Raman spectroscopy. The narrow symmetric Raman D band has the same bandwidth as the G band line width of supported graphene. For suspended graphene,...
Defects have crucial effects on the electronic and optoelectronic properties of two‐dimensional materials. In this work, we measured the changes in the Raman spectra and electrical conductance of monolayer molybdenum disulfide (MoS2) with increasing defects via thermal annealing in a reducing atmosphere. Raman spectra of the basal plane MoS2 on SiO2 differed from those of the edge and revealed intricate...
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