Simulation Study Of New Type Copper Oxide Thin Film Heterojunction Solar Cells

Copper oxide is a kind of photovoltaic materials with a great application potential, in that CuO and Cu2O most have the research value. The forbidden band width both of CuO of 1.2?1.9 eV and of Cu2O of 2.0-2.5 eV are match with the solar spectrum well. However, the report about the studies of copper oxide film is still very rare, especially the simulation study based on copper oxide thin-film batteries. Therefore, it is an important research topic to further study the copper oxide thin film optical properties and explore the structural parameters of the battery with the help of simulation tools, to promote the development of new membrane battery.This paper simulated solar battery of new copper oxide thin-film heteroj unction with the AMPS-1D software, and established the three kinds of solar battery model, that respectively are Cu2O/graphene film heteroj unction solar battery, CuO/graphene film heteroj unction solar battery, and p-i-n structure of copper oxide solar battery. For Cu2O/graphene film heterojunction solar battery, this paper mainly discussed the influence of the film thickness of Cu2O, the film defect concentration of Cu2O, the environment temperature and the water pollution on the surface of the battery; for CuO/graphene film heterojunction solar battery, this paper mainly discussed the influence of the film thickness of Cu2O, the film defect concentration of Cu2O and the environment temperature on the battery; for p-i-n structure of copper oxide solar battery, this paper mainly discussed the influence of the i layer thickness on the performance of the battery. Simulation results show that, for the Cu2O/graphene film heterojunction solar battery, the best range of the film thickness is 2000?2100 nm, the best range of the defect concentration is 9×1015?1×1016cm-3, the best range of the working environment temperature is 295?310 K, and the maximum of the conversion efficiency can reach 0.803% in the simulation in an ideal world; for CuO/graphene film heterojunction solar battery, the best range of the film thickness is 3000?4000 nm, the best range of the defect concentration is 6×1016?8×l016 cm-3, the best range of the working environment temperature is 315?330 K, and the maximum of the conversion efficiency is 0.803%?in an ideal world; for p-I-n structure of copper oxide solar battery, the best range of the i layer thickness is 1100?1200 nm, and the maximum of the conversion efficiency is 1.340%.