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准单晶矿膜和稳定的太阳能电池的桥梁溶剂战略

Yao Zhang¹, Xiangyu Sun¹, Zhen Guan¹

¹Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.

|June 18, 2024

概括

一个新的桥梁溶剂策略改进了基于formamidinium (FA) 的矿太阳能电池 (PSC). 这种方法提高了片质量,导致PSC商业化高效率 (24.1%) 和特殊的长期稳定性.

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:

基于formamidinium (FA) 的矿太阳能电池 (PSC) 的商业化需要高效率和长期稳定性.
PbI2复合物和矿化合物可以导致对光敏感的PbI2残留物和相位杂质,加速设备降解.

研究的目的:

为了研究基于FA的矿膜的结晶动力学.
开发一个桥梁溶剂策略,以控制反应动力学和防止不必要的中间体.

主要方法:

在PbI2前体溶液中利用N-甲基 Pyrrolidone (NMP) 形成稳定的PbI2-NMP复合体.
研究了NMP和formamidinium iodide (FAI) 分子之间的相互作用.
制造的矿膜和组装的PSC用于性能和稳定性测试.

主要成果:

获得了以 (001) 为导向的半单晶矿膜,其杂质微不足道.
电影呈现出较长的载体寿命 (1.5微秒) 和较大的粒度 (3微米).
优化的PSC实现了24.1%的功率转换效率,具有卓越的货架 (T95 = 1200小时) 和运行 (T96 = 300小时) 稳定性.

结论:

桥梁溶剂策略有效调节反应动力学,产生相纯,单轴定向的矿膜.
该方法为制造高性能和稳定的PSC提供了一种简单且可重复的方法.
这些发现有助于基于FA的矿太阳能技术的商业可行性.

关键词:

均质复合体是一个均质的复合体.几乎单晶的矿石.这是一个可重复的过程.这是一种两步方法.

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