通过化盐进行表面重建,以获得高效稳定的矿太阳能电池
Wenjing Pan1, Zhizhi Wang1, Yong Deng1
1State Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P.R. China.
The journal of physical chemistry letters
|February 5, 2024
概括
本研究介绍了一种使用DMTMM的盐策略,用于修复矿 (PVK) 薄膜中的缺陷. 这种方法可以提高矿太阳能电池 (PSC) 的性能和稳定性.
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.
背景情况:
- 矿太阳能电池 (PSC) 显示了与优化矿 (PVK) 膜接口相关的高效率.
- 在PVK薄膜沉积过程中产生的接口缺陷限制了设备的性能.
研究的目的:
- 开发一种调节接口特性和修复PVK膜缺陷的方法.
- 为了提高PSC的性能和稳定性.
主要方法:
- 使用有机化物盐,4-(4,6-dimethoxy-1,3,5-triazin-2-yl) -4-methylmorpholinium化物 (DMTMM),进行表面重建.
- 将DMTMM加热到110°C以诱导向液态盐的相变,以促进与不和Pb2+和化物空缺的协调.
- 在冷却后形成一个紧的DMTMM介层,以保护PVK薄膜.
主要成果:
- 化的DMTMM有效地与不和Pb2+和化物空缺协调,修复结构缺陷.
- 形成的DMTMM间层保护PVK膜免受空气降解.
- 用DMTMM处理的基于MAPbI3的PSC实现了接近20%的冠军功率转换效率 (PCE),并提高了稳定性.
结论:
- 融盐辅助表面重建是创建高度稳定的混合矿膜的可行策略.
- 这种方法为开发高性能PSC提供了新的途径.
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