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为高性能矿太阳能电池的调节结晶设计添加剂

Yang Cao¹, Nan Yan¹, Mingzi Wang²

¹Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials, Shaanxi Normal University, Xi'an, 710119, Shaanxi, China.

Angewandte Chemie (International ed. in English)

|May 10, 2024

概括

加上二乙酸 (DFA),通过调节薄膜结晶,提高了矿太阳能电池的性能. 这导致具有较低缺陷的高质量的矿膜,实现25.28%的功率转换效率和增强的稳定性.

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:

高质量的矿膜对于高效的矿太阳能电池 (PSC) 是必不可少的.
控制矿结晶是减少薄膜缺陷和提高功率转换效率 (PCE) 的关键.
添加剂可以调节结晶动力学,改善薄膜形态.

研究的目的:

调查二酸乙 (DFA) 作为控制矿结晶的添加剂的使用情况.
在矿膜制备过程中减少缺陷的形成.
提高PSC的功率转换效率 (PCE) 和环境稳定性.

主要方法:

设计和合成二酸乙 (DFA) 作为结晶调节剂.
研究了DFA与DMSO的反应机制,形成二乙酸二乙 (DTE) 和二乙酸 (DA).
使用现场UV/Vis和光发光 (PL) 测试来监测结晶过程.
使用DFA添加剂制造的矿膜,并描述其质量和缺陷密度.

主要成果:

DFA与DMSO发生反应,形成DTE和DA,它们与PbI2.2强烈结合.
这些相互作用有效地减缓了矿结晶,促进了具有较少缺陷的高质量薄膜的形成.
在使用DFA制造的PSC中,获得了25.28%的冠军功率转换效率 (PCE).
这些设备表现出了极好的环境稳定性,在环境条件下 (25°C,25%的RH) 经过1152小时后保留了95.75%的初始PCE.

结论:

酸乙 (DFA) 是一种有效的添加剂,可以控制矿晶体和减少矿薄膜的缺陷.
使用DFA可以显著提高矿太阳能电池的功率转换效率 (PCE).
经过DFA修改的PSC显示出增强的环境稳定性,这对于实际应用至关重要.

关键词:

添加剂工程添加剂工程结晶调节的规则结晶调节的规则这就是FAPbI3的原因.佩洛夫斯基特是一种矿.太阳能电池太阳能电池太阳能电池

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