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用于高性能和稳定的倒置矿太阳能电池的埋面接口修改

Fei Song¹, Nan Yan¹, Yang Cao¹

¹Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P.R. China.

Angewandte Chemie (International ed. in English)

|October 17, 2025

概括

三烯胺衍生物 (TAPC) 可以使矿薄膜无活性,减少缺陷并提高太阳能电池的性能. 这种接口修改提高了硬矿太阳能电池和柔性矿太阳能电池的功率转换效率和稳定性.

科学领域:

材料科学材料科学材料科学
固态物理固态物理
太阳能光伏发电是如何实现的

背景情况:

矿薄膜中的残余应力会导致晶格扭曲和缺陷 (位移,空缺).
这些缺陷充当非辐射重组中心,降低矿膜的稳定性和设备性能.
有效的被动化策略对于高性能和稳定的矿太阳能电池至关重要.

研究的目的:

设计一种有效的被动化剂,以减轻矿膜中的应力和缺陷.
通过界面修改来提高矿太阳能电池 (PSC) 的性能和稳定性.
证明灵活PSC (F-PSC) 战略的适用性.

主要方法:

使用三胺衍生物 (TAPC) 作为孔输送层 (HTL) 的被动化剂.
设计了一个修改后的分子层,在HTL和矿之间创建热膨胀系数的梯度.
制造和特征优化的刚性PSC和灵活PSC (F-PSC).

主要成果:

TAPC修改有效地减轻了压力积累,并减少了矿膜中缺陷的形成.
优化的PSC显示功率转换效率 (PCE) 从24.22%增加到26.05%,填充系数 (FF) 从83.2%增加到85.2%.
修改后的设备显示出最小的开通电路电压 (V_oc) 损失和优异的长期稳定性,F-PSCs的PCE达到24.39%.

结论:

三烯胺衍生物 (TAPC) 作为矿膜的有效被动化剂.
埋葬接口修改是制造高性能和稳定的PSC和F-PSC的一个有希望的策略.
开发的方法增强了电荷传输,优化了能量水平,并提高了设备的稳定性.

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