一种钙钛矿致密覆盖绒面硅的叠层太阳能电池及其制备方法
By spraying a fine particle layer into perovskite/silicon tandem solar cells, the problem of perovskite film not being able to completely cover the silicon textured surface is solved, achieving dense coverage, improving photoelectric conversion efficiency, and making it suitable for large-area rapid fabrication of high-efficiency perovskite/silicon tandem cells.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XI AN JIAOTONG UNIV
- Filing Date
- 2025-03-03
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, perovskite/silicon tandem solar cells suffer from leakage current and low efficiency due to size mismatch, which prevents the perovskite film from completely covering the silicon textured surface. Furthermore, existing methods cannot achieve dense coverage without changing the textured surface size, thus affecting photoelectric conversion efficiency.
A layer of fine particles with a size of 100-1000 nm is sprayed between the pyramid tip and the perovskite layer of a textured silicon substrate solar cell. By controlling the coverage and thickness of the particle layer, a dense coverage of the perovskite layer is achieved, and a tandem solar cell is fabricated using a one-step solution method.
It effectively solves the problems of uncovered tips and poor filling between perovskite films and textured silicon wafer substrates, improves the coverage quality and filling effect of perovskite films, enhances photoelectric conversion efficiency, and is suitable for large-area rapid fabrication of high-efficiency perovskite/silicon tandem solar cells.
Smart Images
Figure CN120112047B_ABST