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通过持续的溶剂提取道进行均结晶,用于无甲基的全矿联太阳能电池

Yijia Guo¹, Mengran Yin¹, Han Gao¹

¹National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China.

Nature communications

|January 6, 2026

概括

以-为形式的矿石太阳能电池实现了高效率和热稳定性. 一个新的多路易斯基调节器确保了均的结晶,导致创纪录的双联太阳能电池性能.

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:

矿太阳能电池中的甲基 (MA+) 离子限制了热稳定性.
用formamidinium (FA+) 或 (Cs+) 替换MA+可以提高弹性,但会带来结晶的挑战.
基矿可以形成密集的表面层,在加工过程中阻碍溶剂提取.

研究的目的:

开发一种方法,用于对无MA+混合Pb-Sn矿的均质结晶.
为了提高矿太阳能电池和联太阳能电池的热稳定性和性能.
为了克服与Cs基矿相关的结晶问题.

主要方法:

在助 (AS) 结晶过程中引入多路易斯基调制器.
工程持续的溶剂提取通道 (SSC) 以促进均的溶剂去除.
制造单质全矿联太阳能电池 (TSC).

主要成果:

在formamidinium-cesium (FACs) Pb-Sn矿太阳能电池中实现了22.7%的功率转换效率 (PCE).
制造的单体全矿联太阳能电池具有29.2%的认证PCE,这是无MA+TSC的最高值.
证明了出色的热稳定性,未封装的FACs基细胞在85°C下800小时后保留了80%以上的初始PCE.

结论:

多路易斯基调节器策略使MA+无混合Pb-Sn矿的均质结晶成为可能.
这种方法导致高性能和热稳定的矿太阳能电池和并联设备.
开发的方法为可扩展,稳定和高效的矿光伏提供了一个有希望的途径.

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