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高效的p-i-n矿太阳能电池可以承受温度变化
Guixiang Li1, Zhenhuang Su2, Laura Canil1
1Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany.
Science (New York, N.Y.)
|January 26, 2023
概括
研究人员使用一种新型聚合物稳定了矿太阳能电池, 提高了它们的效率和耐用性. 这一突破解决了温度引起的不稳定性,
科学领域:
- 材料科学
- 可再生能源
- 固态物理
背景情况:
- 每天的温度波动会导致化矿的相变和晶格变异,从而损害了它们在太阳能电池应用中的稳定性.
- 开发稳定的矿太阳能电池对于推进可再生能源技术至关重要.
研究的目的:
- 提高矿太阳能电池的运行稳定性和性能.
- 研究β-多乙烯在稳定矿黑相和控制薄膜结晶中的作用.
主要方法:
- 利用β-多聚 (1,1-二乙烯) 的有序二极结构来影响矿膜结晶和能量水平对齐.
- 使用稳定聚合物制造和测试的p-i-n矿太阳能电池.
- 在高温 (25°C和75°C) 和快速热循环 (-60°C至+80°C) 下进行长期稳定性测试.
主要成果:
- 在18毫米2的电池中达到24.6%,在1厘米2的电池中达到23.1%的功率转换效率.
- 在25°C和75°C下保持96%和88%的初始效率.
- 在快速的热循环下没有观察到性能降低,突出显示材料的强度.
结论:
- β-多聚乙烯的有序二极结构有效地稳定了矿的黑相,减轻了温度变化带来的问题.
- 这种稳定策略显著提高了矿太阳能电池的功率转换效率和长期运行稳定性.
- 这些发现为开发耐用的高性能矿太阳能电池提供了有希望的方法.
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