研究目的
Investigating the metallization requirements and development for an alternative fine line printing method to screen printing, called pattern transfer printing (PTP?), on crystalline silicon solar cells.
研究成果
A clear and statistically significant efficiency gain of 0.14%abs has been demonstrated via the PTP? process compared to traditional screen printing. The study highlights the importance of evolving paste and processing technologies together to extract the largest benefits. Further optimization and detailed cost analysis are needed to fully assess the benefits of PTP? for specific applications.
研究不足
The study primarily used screen printing as a test method to evaluate paste modifications for the PTP? process, which may not fully capture all aspects of the PTP? process. Additionally, the detailed cost analysis for manufacturers to determine the overall benefit of using PTP? remains to be conducted.
1：Experimental Design and Method Selection:
The study focuses on the development of metallization paste for the PTP? process, comparing it with traditional screen printing. The methodology includes modifying the organic content and physical properties of the paste to suit the PTP? process.
2：Sample Selection and Data Sources:
The experiments were conducted using monocrystalline PERC (M2) cells, with a sample size of 98 cells for the PTP? process comparison.
3：List of Experimental Equipment and Materials:
The study utilized screen printing as a test method to evaluate and modify different organic systems for the PTP? process. Specific equipment and materials are not detailed in the abstract.
4：Experimental Procedures and Operational Workflow:
The process involved filling trenches in a polymer substrate with metallization paste and depositing the paste on a solar cell via a contactless laser deposition process. Screen printing was used to evaluate paste modifications before applying them to the PTP? process.
5：Data Analysis Methods:
The analysis focused on printability, series resistance, and efficiency gains, comparing the PTP? process with screen printing under identical conditions.
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