| abstract |
The invention discloses an in-situ preparation method of a perovskite solar battery photo-anode. The method comprises the steps that lead-contained compounds are evenly dispersed in titanium dioxide slurry, a film is formed on a conductive base material by the adoption of a knife coating method or a spin-coating method, and a composite film formed by titanium dioxide and lead oxide is obtained through high-temperature sintering; through processing of a haloid acid solution, a composite film formed by the titanium dioxide and lead halide is obtained in an in-situ mode; a layer of lead halide is formed on the surface of the composite film in a spin-coating mode; through processing of an organic amine halide solution, the composite photo-anode is obtained in an in-situ mode, wherein a halogenated organic lead perovskite light absorbing material of the composite photo-anode makes good contact with the titanium dioxide and filling and covering of the composite photo-anode are even. The photo-anode prepared through the method can meet the application requirements of efficient and low-cost perovskite solar batteries, and has the advantages of being mild and controllable in preparation condition, simple and effective in preparation method, low in cost and capable of being produced on a large scale easily. |