Research Progress of Quantum Dot Intermediate Band Solar Cell

The quantum dot intermediate band solar cell is a theoretical concept with the potential for exceeding the conversion efficiency of conventional single-gap solar cells. This paper focuses on summarizing the present status of quantum dot intermediate band solar cell. From the introduction of the concept, it hasnt been realized. Some theoretical proposals and suitable material systems have been investigated to improve the actual conversion efficiency. It seems that there is still a long but bright way to go in this field.