Quantum dots are quasi-zero-dimensional nanomaterials

whose dimensions are below 100 nanometers. The movement of internal electrons in all directions is limited

resulting a strong quantum confinement effect. In recent years

quantum dots with special photoelectric properties have been applied in optoelectronic devices such as light emitting fields and battery fields

and a series of research progress has been made. In this paper

we first summarize the electronic and optical properties of quantum dots

then introduce the research progress of quantum dots in the field of optoelectronic devices

including light-emitting devices

solar cells and field-effect transistors and summarizes the performance and problems of the latest quantum dot optoelectronic devices. Finally

we outlook the development of quantum dots in the future of photonics.