协同电子和缺陷补偿最大限度地减少了无矿太阳能电池中的电压损失
Gengling Liu1, Xianyuan Jiang2, Wenhuai Feng1
1Key Laboratory of Bioinorganic and Synthetic Chemistry (MoE), Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, 510006, Guangzhou, China.
Angewandte Chemie (International ed. in English)
|June 16, 2023
概括
锡矿太阳能电池克服了毒性问题,但存在缺陷. 使用异质盐的新策略补偿了电子和缺陷,提高了46%的效率,并实现了创纪录的1.013V光伏.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源可再生能源是可再生能源.
- 太阳能光伏发电是如何实现的
背景情况:
- 锡 (Sn) 矿太阳能电池为以为基础的光伏提供了一个无毒的替代方案.
- 挑战包括严重的p-doping和空缺缺陷,阻碍性能.
- 这些缺陷导致界面能量调整不良和重组损失.
研究的目的:
- 开发一种策略,同时调节Sn perovskites中的电子结构和缺陷配置文件.
- 为了解决基于Sn的太阳能电池中严重的p-doping和空缺缺陷.
- 为了提高Sn矿太阳能电池的效率和光伏.
主要方法:
- 纳入微量 (0.1mol%) 的异质金属化物盐.
- 协同的"电子和缺陷补偿"战略.
- 修改后的Sn矿膜和太阳能电池设备的表征.
主要成果:
- 改变了从重型p型到弱型p型的兴奋剂,使费米水平上升了约0.12 eV.
- 减少了接口电荷提取障碍,抑制了重组损失.
- 获得了14.02%的冠军效率,比控制 (9.56%) 增加了46%.
- 实现了1.013V的光伏记录,电压缺陷最小为0.38 eV.
结论:
- "电子和缺陷补偿"战略有效地提高了Sn矿太阳能电池的性能.
- 这种方法显著减少了非辐射重组,并改善了电荷提取.
- 取得的结果缩小了基于Sn和Pb的太阳能电池之间的性能差距.
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