A device and method for improving film formation of large-area perovskite cells
By applying atomized solvent to the drying and crystallizing region during the transport of perovskite solar cell substrates, the self-drying problem caused by solvent evaporation at the edge of the liquid film in large-area preparation is solved, improving film quality and reducing equipment costs and hazards, making it suitable for industrial applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- KUNSHAN GCL OPTOELECTRONIC MATERIAL CO LTD
- Filing Date
- 2023-02-02
- Publication Date
- 2026-07-07
AI Technical Summary
In the large-area fabrication process of perovskite solar cells, solvent evaporation at the edge of the liquid film causes the perovskite to self-dry, resulting in poor crystal orientation consistency, poor grain uniformity, and unsatisfactory crystal phase. Existing control methods suffer from high equipment costs, strong solvent corrosivity, and high operational risks.
By applying atomized solvent or solution to the drying and crystallization area during substrate transfer, adjusting substrate speed, solvent type, solution composition, and atomization parameters, and using atomization replenishment unit and optical sensor monitoring, the amount and timing of atomized solvent can be precisely controlled to eliminate drying and crystallization defects.
It improves the quality of perovskite film formation, simplifies equipment requirements, reduces costs, and minimizes environmental and human health hazards, making it suitable for industrialized production lines.
Smart Images
Figure CN116322234B_ABST