Graphene quantum dots (GQDs) prepared through photo-Fenton reaction of graphene oxide are separated via gel column chromatography. The as-separated GQDs were selectively introduced into the active layer of organic solar cells and achieved an enhancement of power conversion efficiency (PCE).
Bibliographical noteFunding Information:
We thank the National Science Foundation of China (No. 21376148), for nancial support of this work. The authors also wish to express their appreciation to the Instrumental Analysis Center of SJTU.
© 2019 The Royal Society of Chemistry.