Perovskite solar cell and manufacturing method
AssigneeHubei Wonder Solar Limited Liability Company
InventorsYongming Ma, Xiayan Chen, Youyu Jiang, Yusong Sheng
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Abstract
The present disclosure provides a perovskite solar cell and a manufacturing method. The method includes: providing a substrate; forming a functional layer on the substrate; forming a perovskite crystal in the functional layer; providing a postprocessing solution including a solvent and an isocyanates compound; applying the postprocessing solution to the perovskite crystal, and maintaining the postprocessing solution for a predetermined time period under a predetermined condition, so as to remove the solvent for complete reaction. According to the present disclosure, it is able to optimize the performance of the perovskite solar cell and improve the photoelectric conversion efficiency.
Claims3
A method for manufacturing a perovskite solar cell, comprising:
- providing a substrate;
- forming a functional layer on the substrate;
- forming a perovskite crystal in the functional layer;
- providing a postprocessing solution comprising a solvent and an isocyanates compound;
- and
- applying the postprocessing solution to the perovskite crystal, and maintaining the postprocessing solution for a predetermined time period under a predetermined condition, so as to remove the solvent for complete reaction;
- wherein the isocyanates compound is one or more selected from a group consisting of hexamethylene diisocyanate, toluene diisocynate, polyphenyl polymethylene polyisocyanate, isophorone diisocyanate and 2,4-difluorophenyl isocyanate;
- wherein a volume concentration of the isocyanates compound in the postprocessing solution is 10 μl/ml to 50 μl/ml;
- wherein the solvent of the postprocessing solution is an organic solvent comprising nitriles, benzenes or ethers;
- wherein the maintaining the postprocessing solution for the predetermined time period under the predetermined condition comprises maintaining the postprocessing solution for 1 minute to 10 minutes at a temperature of 25° C. to 150° C.;
- wherein the forming the functional layer on the substrate comprises:
- forming a conductive layer on the substrate;
- forming a dense layer on the conductive layer;
- and
- forming a mesoporous layer on the dense layer, the mesoporous layer comprising a mesoporous electron transport layer, a mesoporous interlayer and a mesoporous counter electrode layer laminated one on another on the dense layer;
- wherein the mesoporous electron transport layer is made of one or more materials selected from a group consisting of TiO2, SnO2, ZnO, BaSnO3 and SrTiO3, the mesoporous interlayer is made of one or more materials selected from a group consisting of ZrO2, SiO2, Al2O3 and BaTiO3, and the mesoporous counter electrode layer is made of one or more materials selected from carbon, ITO and FTO.
Dependencies are inferred from the claim text.