为高性能倒置矿太阳能电池提供切莱特多站点协调.
Xue Lu1, Kunpeng Li1, Xiong Chang1
1Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China.
ACS applied materials & interfaces
|November 23, 2025
概括
新的合剂N,N'-乙烯二二酸 (EDDS) 有效地使矿太阳能电池缺陷无能化. 这将功率转换效率提高到24.57%,并提高了运行稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 可再生能源可再生能源是可再生能源.
背景情况:
- 接口缺陷,特别是非辐射重组中心,阻碍了电荷传输,降低了矿太阳能电池 (PSC) 的性能.
- 小分子兴奋剂是改善PSC膜形成,晶体生长和缺陷被动化的有希望的策略.
研究的目的:
- 引入N,N-乙二二酸 (EDDS) 作为一种合剂,用于无源化PSC的接口缺陷.
- 调查缺陷被动化的机制及其对设备性能和稳定性的影响.
主要方法:
- 密度函数理论 (DFT) 计算用于研究协调键的形成.
- 薄膜特性和设备性能的实验性表征.
- 在持续照明下进行长期运行稳定性测试.
主要成果:
- 通过稳定的Pb-O和I-O协调键,EDDS有效地使非协调的Pb2+和I-缺陷无效.
- 非辐射重组被抑制,导致充电载体寿命延长.
- 嵌入EDDS的倒置PSC实现了24.57%的冠军功率转换效率,并在3000小时后保持90.2%的效率.
结论:
- 使用EDDS的多站点协调化学在缓解PSC的界面重组中非常有效.
- EDDS显著促进了高效和稳定的矿光伏发电的发展.
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