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使用离子液添加剂的平面矿太阳能电池具有长期稳定性
Sai Bai1,2, Peimei Da3, Cheng Li4,5
1Clarendon Laboratory, University of Oxford, Oxford, UK. sai.bai@liu.se.
Nature
|July 12, 2019
概括
离子液体提高了矿太阳能电池的效率和长期稳定性. 这些改进的太阳能电池在长时间的恶劣条件下表现出最小的性能退化,为可靠的矿光伏技术铺平了道路.
科学领域:
- 材料科学
- 可再生能源
- 太阳能发电
背景情况:
- 金属化太阳能电池是一个非常有前途的光伏技术.
- 虽然长期稳定性有所改善,但离子迁移仍然是一个关键的挑战,特别是在操作压力 (热量和光线) 下.
研究的目的:
- 提高矿太阳能电池的效率和长期运行稳定性.
- 解决矿活性层中持续存在的离子迁移问题.
主要方法:
- 加入离子液体到矿膜中.
- 阳性内在阴性 (PIN) 光伏设备的制造
- 在高温 (70-75°C) 的持续模拟全谱阳光下测试装置的稳定性.
主要成果:
- 包含离子液体的设备显示效率提高.
- 长期稳定性的显著改善.
- 最稳定的封装设备在恶劣条件下连续运行1800小时后仅有5%的性能下降.
- 预计80%的性能保留的运行寿命约为5200小时.
结论:
- 加入离子液体是提高矿太阳能电池效率和稳定的有效策略.
- 这种方法显著减轻了离子迁移问题,从而提高了设备的寿命.
- 在极端条件下的长期运行稳定性是可靠的矿光伏技术的关键进展.
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