Areviewon the research and the industrialization of silicon-based HIT solar cells with intrinsic thin layer is presented. The key technologies about improving the conversion eficiencies of siticon-based HIT solar cell are in-troduced , such as the texturization of silicon wafer surface, the pasivation of heterojunction interface, the grid e-lectrode fabrication, and the bifacial processes. Research achievements on the theoretical design and the experi-mental efforts about tlie silicon quantum dots HIT solar cells,...