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Updated: May 15, 2025

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合理量身定制的被动器具有多位表面,用于抑制离子迁移到稳定的空气矿太阳能电池

Dandan Luo¹, Dingyu Xia¹, Fei Wang²

¹School of Materials Science and Engineering, Hefei University of Technology, Hefei, Anhui, 230009, People's Republic of China. chenyq63@126.com.

Dalton transactions (Cambridge, England : 2003)

|May 14, 2025

概括

非-1-butanesulfonate (KNFBS) 被动剂在矿膜中捕获状态,增强矿太阳能电池 (PSC) 的性能和稳定性. 这种分子处理减少了缺陷,并改善了电荷转移,从而实现了高效,持久的太阳能转化.

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:

矿膜中的陷状态通过捕获载体,促进离子迁移和引起分解来阻碍矿太阳能电池 (PSC) 的商业化.
使用功能化分子进行表面被动化是提高PSC性能的一个关键策略.

研究的目的:

引入非-1-butanesulfonate (KNFBS) 作为矿薄膜的表面消极剂.
研究KNFBS在矿表面和粒度边界上的被动化机制.
评估KNFBS对矿膜质量,缺陷密度和PSC性能的影响.

主要方法:

使用溶液方法制造矿膜.
用非-1-butanesulfonate (KNFBS) 进行表面被动化.
使用现场导电原子力显微镜 (C-AFM) 和凯尔文探针力显微镜 (KPFM) 进行了表征.

主要成果:

通过易斯酸,和离子键,KNFBS通过协同作用使未协调的Pb和I空位缺陷被动化.
通过KNFBS处理,可以减少点和空缺缺陷以及悬浮键密度.
经KNFBS处理的PSC实现了20.88%的功率转换效率 (PCE),增强了空气稳定性.

结论:

KNFBS有效地使陷状态变得无源,并改善矿膜质量.
这项研究阐明了矿中离子迁移和多位点被动化的机制.
使用KNFBS的联结体设计策略显示出对推进矿光伏发电的前景.

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