研究目的
Investigating the transformation of high-efficiency rigid monocrystalline silicon solar cells into flexible solar cells with multi-directional flexing capabilities without degradation of the original electrical performance.
研究成果
Flexible monocrystalline silicon solar cells with high efficiency (19%) and multi-directional flexing capabilities are successfully demonstrated. The corrugation process enables flexibility without degrading the original electrical performance, offering potential applications in wearable electronics, robotics, and space applications.
研究不足
The study demonstrates the feasibility of creating flexible solar cells with minimal area loss and robust electrical performance, but the process may require further optimization for industrial-scale production and different solar cell configurations.
1：Experimental Design and Method Selection:
The study employs a photolithography-less corrugation technique to create grooves with different patterns across the solar cell using a plasma etch process.
2：Sample Selection and Data Sources:
Commercial monocrystalline silicon solar cells with 240 μm thickness and interdigitated back contacts (IBC) are used.
3：List of Experimental Equipment and Materials:
Positive photoresist PR 9260, Kapton tape, CO2 laser, deep reactive ion etching (DRIE) system, acetone.
4：Experimental Procedures and Operational Workflow:
The solar cells are spin-coated with photoresist, patterned with Kapton tape using a CO2 laser, etched in a DRIE system, and the remaining Kapton is lifted off using acetone.
5：Data Analysis Methods:
The mechanical flexibility and electrical performance of the corrugated solar cells are analyzed under various bending conditions.
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