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对于高效的太阳能电池而言,胺化薄膜中的阳离子空隙的活性被动化

Zhiyuan Cai¹, Bo Che¹, Yuehao Gu¹

¹Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|May 14, 2024

概括

研究人员开发了一种新方法来减少胺 (Sb2Se3) 太阳能电池的缺陷. 这种缺陷被动化策略通过提高开通电路电压 (VOC) 来提高功率转换效率 (PCE).

科学领域:

材料科学材料科学材料科学
太阳能光伏发电是如何实现的
半导体物理半导体物理

背景情况:

双反化 (Sb2Se3) 是一种稳定,无毒的无机材料,具有轻度采集的潜力.
深层能量水平缺陷,如空缺 (VSe),通过导致开通电路电压 (VOC) 缺陷,显著限制Sb2Se3太阳能电池的性能.
有效的缺陷控制对于提高Sb2Se3光伏设备的功率转换效率 (PCE) 是至关重要的.

研究的目的:

了解Sb2Se3薄膜中深层次缺陷的性质.
开发和实施一种新的定向缺陷被动化策略,以抑制空缺的形成.
为了提高Sb2Se3太阳能电池的开放电路电压 (VOC) 和整体功率转换效率 (PCE).

主要方法:

使用有针对性的缺陷被动化策略来抑制空缺 (VSe) 的形成.
进行了系统研究,以调查Sb2Se3膜内的缺陷性质的演变.
通过实验分析阐明了缺陷被动反应的路径.

主要成果:

拟议的策略成功地抑制了空缺 (VSe) 的形成,保持了Sb2Se3膜的组成和形态.
缺陷辅助重组被抑制,导致开通电路电压 (VOC) 显著增加.
Sb2Se3太阳能电池的功率转换效率 (PCE) 从7.69%提高到8.90%.

结论:

这项研究揭示了对Sb2Se3.3中深层次缺陷行为的新理解.
定向缺陷被动化策略有效地提高了Sb2Se3太阳能电池的性能.
这项工作为先进的太阳能电池应用制造高质量的Sb2Se3薄膜提供了洞察力,为热蒸发基层设备实现了创纪录的效率.

关键词:

抗氧化的化.缺陷演变的演变缺陷被动化缺陷被动化太阳能电池是一个太阳能电池.

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