对于高效的矿子模块的污染治愈接口工程
Haifei Wang1,2, Shuojian Su1,3,4, Yuetian Chen1,2,5
1School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, China.
Nature
|September 26, 2024
概括
由于效率下降, 提高矿太阳能电池的规模是一个挑战. 本研究引入了一种使用功能性阴离子来改善formamidinium酸 (FAPbI3) 装置中的缺陷被动化和载体运输的杂质修复策略.
科学领域:
- 材料科学
- 可再生能源
- 设备物理
背景情况:
- 由于缺陷分布不均,矿太阳能电池在缩放时面临效率下降.
- 酸 (FAPbI3) 中的PbI2和δ-FAPbI3等杂质导致非辐射重组并阻碍电荷传输.
- 开发稳定高效的大面积矿装置的策略对于商业化至关重要.
研究的目的:
- 解决矿太阳能电池效率下降的问题.
- 为形成酸 (FAPbI3) 太阳能发电系统制定污染治愈接口工程策略.
- 在小面积的电池和大规模的子模块中增强载体运输和缺陷被动化.
主要方法:
- 在FAPbI3上引入一个功能性离子,2- ((1-cyclohexenyl) ethyl ammonium,以创建一个二维矿层.
- 设计接口覆盖膜表面并穿透3D矿的粒度边界.
- 使用二维矿层进行杂质转化和缺陷被动化.
主要成果:
- 功能性离子将PbI2和δ-FAPbI3杂质转化为稳定的二维矿,实现均的缺陷被动化.
- 设计的接口提供了高效的载体运输道,提高了设备性能.
- 小面积 (0.085平方厘米) 的FAPbI3太阳能电池达到超过25.86%的冠军效率,填充率为86.16%.
- 大型子模块 (715.1 cm2) 实现了22.46%的认证记录效率,填充率为81.21%.
结论:
- 污染治愈接口工程策略有效地解决了扩大规模的矿太阳能电池的效率下降.
- 这种方法可实现均的缺陷被动化,并增强基于FAPbI3的设备的载体传输.
- 这种方法在保持高光伏性能的同时证明了大规模生产的可行性.
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