Method for preparing MoO3/silicon nanowire array heterojunction solar cell through solution method

The invention discloses a method for preparing a MoO3/silicon nanowire array heterojunction solar cell through a solution method, and belongs to the technical field of photovoltaic material. The key points of the technical scheme are that the characteristic that anhydrous hydrogenated molybdenum trioxide is freely soluble in water or isopropyl alcohol is utilized, and molybdenum trioxide acts as a hole transmission layer. The method for preparing the heterojunction solar cell by spin coating of a MoO3 solution on a silicon nanowire array is provided firstly. High-temperature and high-vacuum equipment is not required by the method, energy conversion efficiency of the prepared heterojunction solar cell is equivalent to that of the heterojunction solar cell prepared by a vacuum evaporation method or an organic matter spin coating method, and stability of the heterojunction solar cell prepared by the method is obviously enhanced.