A Facile Microwave-Assisted Hydrothermal Synthesis of Graphene Quantum Dots for Organic Solar Cell Efficiency Improvement

Figure 8

- characteristics of organic solar cells at different graphene quantum dot doping amounts (a) and energy band diagram of graphene quantum dot-doped organic solar cells (b). The highest occupied molecular orbital and lowest unoccupied molecular orbital values of the P3HT, PCBM, and GQDs from the literature [6].

(a)

(b)