▎ 摘　　要

Doping graphene quantum dots (GQDs) with other atoms can effectively improve the optical performance of GQDs. Because of the specificity of doping, doped GQDs can be used as fluorescence sensors. In this paper, we review doping strategies to improve the performance of GQDs. These strategies include: (1) nitrogen atom doping; (2) sulfur atom doping and co-doping; (3) and doping with other atoms. The characterization and optical properties of doped GQDs are discussed and compared. The mechanism of fluorescence sensing, detection ranges and detection limits are also summarized. Finally, the future development of doped GQDs is prospected. At present, single-atom Nitrogen-doped GQDs are the most common. This review aims to expand the scope, application, and color range of doped GQDs through advances in the use of other heteroatoms and polyatomic doping. In addition, further study is needed to realize the full potential for quantum yield improvement through doping GQDs. The relevant discussion here on strategies for doped GQDs will promote their development as highyield, sensitive, selective, and tunable fluorescence sensors.