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对宽带差距 p-i-n 矿太阳能电池缺陷被动化效应的理解

Enkhjargal Enkhbayar¹, Namuundari Otgontamir¹, SeongYeon Kim²

¹Department of Physics, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea.

ACS applied materials & interfaces

|June 26, 2024

概括

2-thiopheneethylammonium化物 (TEACl) 抑制宽带间隙矿太阳能电池 (PSC) 的缺陷. 这种被动化提高了基于CsFAMA的PSC的效率和长期稳定性.

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:

宽带间隙矿太阳能电池 (PSC) 对高效率的协奏应用具有前景.
在PSC中的性能和稳定性问题与来自缺陷的非辐射再组合和相隔离有关.

研究的目的:

为了研究2-thiopheneethylammonium化物 (TEACl) 作为宽带间隙中的被动化层的影响Cs_0.15FA_0.65MA_0.20Pb(I_0.8Br_0.2) ₃ (CsFAMA) PSCs.
提高 CsFAMA PSC 的光伏性能和运行稳定性.

主要方法:

应用TEACl作为矿吸收器和电子输送层 (ETL) 之间的被动化层.
缺陷被动化,带对齐和异质连接形成的表征 (2D/3D TEA₂PbX₄/矿).

主要成果:

TEACl处理抑制了充电缺陷,减少了子频段吸收和静电电位波动.
2D/3D TEA₂PbX₄/矿异质连接的形成改善了带线对齐和被动化的ETL/CsFAMA接口缺陷.
通过TEACl被动化的PSC实现了19.70%的功率转换效率 (PCE),并在1900小时后保留了~85%的初始PCE.

结论:

TEACl有效地使宽带间隙 CsFAMA PSC 的批量和接口缺陷无效.
消极化策略显著提高了公共服务公司的效率和长期稳定性.
TEACl是一个有前途的添加剂,用于开发稳定和高效的宽带间隙矿石太阳能电池,用于并联应用.

关键词:

2D/3D异形连接的异形连接.缺陷被动化缺陷被动化这是一个p-i-n结构.矿石太阳能电池的太阳能电池是什么宽带间隙矿的矿.

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