Figure 2: Raman spectra and electrical measurements.
From: Hot carrier multiplication on graphene/TiO2 Schottky nanodiodes
(a) Change in Raman spectra of the graphene (Inset: atomic stick–slip image of SLG, 2 × 2 nm.), (b) I–V curves, (c) photocurrent density measured on the graphene/TiO2 diodes as a function of the number of graphene layers (SLG: single–layer graphene, DLG: double–layer graphene, TLG: triple–layer graphene).
