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同类的后处理策略,使阶段纯度成为可能

Yaqi Ye¹, Lingbo Xiao¹, Lutao Li¹

¹College of Energy, Soochow Institute for Energy and Materials Innovations, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215000, People's Republic of China.

|June 9, 2023

概括

一种新的同源后处理策略 (HPTS) 能够形成无添加剂,相纯的formamidinium三化 (FAPbI3) 矿膜. 这种方法提高了薄膜质量,导致高效和稳定的矿太阳能电池.

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.
固态化学固态化学

背景情况:

甲基三化 (FAPbI3) 是太阳能电池的一个有前途的矿材料,因为它具有最佳的带隙和稳定性.
在没有添加剂的情况下实现纯相α-FAPbI3对于高性能设备至关重要.
现有的方法通常需要添加剂或与相纯度作斗争.

研究的目的:

开发一种无添加剂的策略,以获得相纯的α-FAPbI3矿膜.
为了研究由应变释放引起的相位过渡的机制.
为了提高基于FAPbI3的矿太阳能电池的效率和稳定性.

主要方法:

一种同类的后处理策略 (HPTS),涉及化过程中的溶解和重建.
利用基板诱导的拉伸应变及其随后的释放来驱动相位过渡.
在120°C时火,以加速从六角三角-FAPbI3转变为立方α-FAPbI3.

主要成果:

HPTS成功地生产了无添加剂,相纯的α-FAPbI3膜.
该策略有效地释放了拉力应变,促进了三角洲到α阶段的过渡.
由此产生的薄膜表现出改进的光学和电气性能.
实现了设备功率转换效率为19.34%,增强了稳定性.

结论:

HPTS是一种有效的无添加剂方法,用于制造高质量,相纯的α-FAPbI3膜.
通过HPTS进行应变工程是一种可行的方法,可以控制FAPbI3矿的相位过渡.
这项工作为统一,高性能的FAPbI3矿太阳能电池铺平了道路.

关键词:

这就是FAPbI3的原因.一致的同质性.矿石太阳能电池的太阳能电池是什么阶段过渡阶段过渡压力压力压力压力

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