Energy Material Advances / 2021 / Article / Fig 3

Research Article

Graphene Quantum Dots Open Up New Prospects for Interfacial Modifying in Graphene/Silicon Schottky Barrier Solar Cell

Figure 3

(a) Energy band diagrams of graphene-silicon Schottky heterojunction with GOQD interfacial barrier (left and middle chart) and the characteristics measured by experiment (right chart) for each case both under illuminated and in the dark conditions. (b) TEM image of GOQDs with a mean size of 4.15 nm with an insert of the size distribution of GOQDs (left chart), PL and UV-Vis spectrum (middle chart), and characteristic curve measured (right chart). (c) TEM image of GOQDs with a mean size of 6.38 nm with the insert of the size distribution of GOQDs (left chart), PL and UV-Vis spectrum (middle chart), and characteristic curve (right chart).