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同蒸发的Formamidinium锡三化物与抑制的p型自我兴奋剂

Junhyoung Park¹, Andrea Olivati¹, Mirko Prato²

¹Center for Nano Science and Technology@Polimi, Istituto Italiano di Tecnologia, via Rubattino 81, Milano 20134, Italy.

ACS energy letters

|January 15, 2026

概括

在没有溶剂的情况下对formamidinium三化物 (FASnI) 进行同蒸发,形成高度结晶的薄膜. 这种方法提高了对缺陷的抵抗力,为优质的基于Sn的矿材料铺平了道路.

科学领域:

材料科学材料科学材料科学
固态化学固态化学
太阳能光伏发电是如何实现的

背景情况:

锡基矿对太阳能电池具有前景,但存在不稳定性.
锡的氧化和自我补充会导致缺陷和性能差.

研究的目的:

开发一种稳定,高质量的锡基矿薄膜.
为了研究一种用于formamidinium三化 (FASnI₃) 薄膜的新合成方法.

主要方法:

没有溶剂的FASnI前体的同蒸发.
薄膜结晶性和带隙的表征.
氧化和自我兴奋剂倾向的分析.

主要成果:

实现了高度结晶的FASnI₃薄膜,带隙为1.31 eV.
已证明降低了Sn2+到Sn4+的氧化和自我兴奋剂.
在合成的薄膜中观察到改善了对缺陷形成的抵抗力.

结论:

无溶剂共蒸发是一种生产高质量的基于Sn的矿膜的可行方法.
开发的工艺增强了材料的稳定性,减少了缺陷.
这种方法对高效且持久的矿太阳能电池具有前景.

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