At present, the main research areas of the research group are concentrated in the field of new optoelectronic devices such as solar cells, field effect transistors, and photodetectors. Organic-inorganic hybrid perovskite materials are one of the popular materials in the scientific community, and are also considered to be the most promising star materials to win the Nobel Prize. Organic-inorganic hybrid perovskite materials combine the advantages of organic materials and inorganic materials, which not only have the characteristics of easy preparation of organic materials (low temperature process, large area preparation, flexible substrate compatibility), but also have high carrier mobility,proper band gap, etc of inorganic materials. The efficiency of solar cells prepared using perovskite materials has now exceeded 25%, which is comparable to the silicon-based devices already commercialized produced and applied in the market, showing a good application prospect. The research group currently considered new types of organic-inorganic hybrid perovskite materials as a platform to deeply study the photoelectric conversion mechanism of the material, and also try to prepare high-performance photoelectric devices through interface modification, semiconductor doping, and chemical valence bond control.