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通过调节Se量来实现优秀的kesterite器件的元素均性

Lulu Bai^1,2, Yanchun Yang^1,3,2, Yajin Mi^1,2

¹School of Physics and Electronic Information, Inner Mongolia Autonomous Region Engineering Research Center for Rare Earth Functions and New Energy Storage Materials, Inner Mongolia Normal University, 81 Zhaowuda Road, Huhhot, Inner Mongolia 010022, China.

ACS applied materials & interfaces

|September 17, 2025

概括

在化过程中优化含量,改善了矿 (Cu,Ag) 2ZnSn(S,Se) 4 (ACZTSSe) 薄膜中的元素分布. 这提高了ACZTSSe薄膜太阳能电池的光电转换效率.

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
薄膜太阳能电池薄膜太阳能电池

背景情况:

石吸收器中元素的均分布对于高光电转换效率至关重要.
石 (Cu,Ag) 2ZnSn(S,Se) 4 (ACZTSSe) 是一个有前途的光伏材料.
在合成过程中控制膜组成是设备性能的关键.

研究的目的:

研究在化过程中调节 (Se) 含量对ACZTSSe膜均性的影响.
了解改进的元素分布如何影响薄膜特性和太阳能电池效率.
优化化过程以提高ACZTSSe薄膜太阳能电池的性能.

主要方法:

在ACZTSSe薄膜的化过程中,使用不同数量的放置Se.
对石薄膜内的元素分布和迁移进行分析.
薄膜缺陷和电气性能的表征.
ACZTSSe薄膜太阳能电池的制造和效率测试.

主要成果:

在化过程中调节放置的Se量 (7.5 mmol),可以在ACZTSSe薄膜中提高元素均性.
最佳的Se含量减少了离子迁移,谷物边界丰富和不利的缺陷.
改进了元素分布,优化了带尾状态和增强了电气性能.
太阳能电池的效率从7.9%提高到11.3%,并优化了Se的含量.

结论:

在化过程中放置的Se的数量显著影响了ACZTSSe中的元素分布和薄膜质量.
实现均的元素分布对于优化光电子性能至关重要.
这项研究为控制高效薄膜太阳能电池的ACZTSSe膜特性提供了洞察力.

关键词:

在CZTSSe太阳能电池.这是一笔巨额资金.缺陷缺陷缺陷缺陷缺陷元素的一致性元素的一致性.表面潜力的表面潜力

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