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高性能倒置矿太阳能电池通过包含异原子的多功能螺旋自组装单层

Botong Li¹, Xuepeng Liu¹, Yijin Wei²

¹Beijing Key Laboratory of Novel Thin-Film Solar Cells, School of New Energy, North China Electric Power University, Beijing, 102206, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|August 5, 2025

概括

新的螺旋自组装单层 (SAM) 与硫 (Spiro-S) 提高了矿太阳能电池 (PSC) 的性能. 斯皮罗-S提高矿膜质量,减少缺陷,从而提高PSC设备的效率和稳定性.

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:

矿太阳能电池 (PSC) 需要优化的孔输送层,以获得高效率和稳定性.
自组装单层 (SAM) 在PSC的接口工程中起着至关重要的作用.
了解SAM和矿层之间的相互作用是设备性能的关键.

研究的目的:

开发具有异原子 (O和S) 的新型螺旋SAM,以提高PSC性能.
研究分子结构和异质原子结合对矿膜质量和界面特性的影响.
为了实现高功率转换效率和在倒置PSC中提高运行稳定性.

主要方法:

合成两个螺旋SAM:Spiro-O和Spiro-S,分别包含氧和硫原子.
使用开发的SAM作为孔运输层制造反转矿太阳能电池.
使用实验和理论技术对SAM,矿薄膜和设备性能进行表征.

主要成果:

与Spiro-O相比,Spiro-S与矿层的相互作用更强,导致更均和更高质量的晶体膜.
斯皮罗-S中的硫原子有效地使矿/SAM接口上的缺陷无效,减少电荷重组.
使用Spiro-S的PSC实现了25.75%的功率转换效率 (认证为25.19%),并在储存1200小时后保持了92%的初始效率.

结论:

将硫纳入螺旋SAM是提高矿太阳能电池性能的一个有希望的策略.
斯皮罗-S SAM提高了矿膜质量和界面被动化,从而显著提高了效率和稳定性.
这项工作展示了定制SAM在推进矿太阳能电池技术方面的潜力.

关键词:

异质原子是一种异质原子.孔的运输层是孔的运输层.倒置矿太阳能电池的使用方法自己组装的单层单层.螺旋结构是螺旋结构.

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