Low-temperature growth of large-scale, single-crystalline graphene on Ir(111) |
Single-crystalline graphene transferred onto a SiO2 substrate. (a) An optical image of the transferred graphene, showing the continuous graphene film with a few contaminations. (b) Raman spectrum of the transferred graphene on SiO2. The full width at half maximum is smaller than 30 cm−1. (c) Raman mapping ( |
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