界面静电排斥抑制化离子迁移,以增强矿太阳能电池的反偏移稳定性
Zhineng Lan1, Yingying Yang1, Hao Huang2
1State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of New Energy, North China Electric Power University, Beijing, China.
Nature communications
|December 12, 2025
概括
矿太阳能电池 (PSC) 面临来自离子迁移的逆偏差问题. 这项研究引入了静电排斥来抑制离子运动,显著改善PSC的稳定性和性能.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源是可再生能源的来源.
- 半导体物理 半导体物理
背景情况:
- 矿太阳能电池 (PSC) 显示出希望,但遭受逆偏差退化.
- 化离子 (I-) 迁移是PSC在反向偏差下性能失败的主要原因.
研究的目的:
- 在反向偏差下研究PSC中不可逆转的化离子迁移的机制.
- 开发一种策略来抑制酸离子迁移,并提高PSC的稳定性.
主要方法:
- 在反向偏差下,揭示了化离子 (I-) 的不可逆转的横层迁移.
- 在矿界面构建了一个静电排斥,以抑制I-迁移.
- 使用TFMS阻断孔注射并减少I-氧化.
主要成果:
- 经过修改的PSC实现了高效率:25.80% (TiO2 ETL) 和26.21% (SnO2 ETL).
- 证明了增强的反向偏差稳定性,在25个老化周期后保持>80%的效率.
- 新的静电排斥有效地抑制了I-跨层迁移.
结论:
- 该研究提供了一种通过静电排斥来抑制PSC中的离子迁移的新途径.
- 这种方法提高了设备的稳定性和性能,解决了矿太阳能技术的一个关键挑战.
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