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Updated: May 30, 2025

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宽带间隔矿太阳能电池的界面工作功能的调节,以实现高效的矿/CIGS并联太阳能电池

Pingping Liu¹, Wenhuan Li^1,2, Jiarui Li³

¹Center for Photonics Information and Energy Materials, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China.

|January 27, 2025

概括

皮佩拉 (PI) 有效地使宽带间隙矿太阳能电池 (PVSC) 无源化,通过增加内置电压,显著提高开放电路电压 (V_OC). 这一策略提高了单结和联太阳能电池的性能.

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
可再生能源可再生能源是可再生能源.

背景情况:

宽带间隙矿太阳能电池 (PVSCs) 对于高效的合应用至关重要.
在PVSC中增加带隙往往导致显著的开放电路电压 (V_OC) 缺陷.
表面被动化对于减轻V_OC赤字至关重要,但分子被动化的机制尚未完全理解.

研究的目的:

为了比较 phenethylammonium iodide (PEAI) 和 piperazine iodine (PI) 在宽带间隙PVSC中的V_OC上的被动化效应.
阐明差异性被动化效应背后的机制,以指导未来的分子设计.

主要方法:

研究了PEAI和PI对1.66 eV带隙PVSC的被动化效应.
分析了开放电路电压 (V_OC) 和内置电压 (V_bi) 的变化.
在单节PVSC和矿/CIGS双联太阳能电池中评估性能.

主要成果:

皮佩拉 (PI) 显著增强了V_OC,与PEAI不同,这归因于V_bi从较低的工作功能的增加.
治疗PI导致冠军PVSC效率为21.47%,V_OC为1.23V (0.43V损耗).
PI被动化策略在1.56,1.66和1.81 eV的带隙的PVSC中被证明是有效的.
矿/CIGS 4 端双联太阳能电池实现了 26.36% 的功率转换效率 (PCE).

结论:

与PEAI相比,Piperazine对于宽带间隙PVSC是一种优越的被动化剂,有效地减少V_OC的缺陷.
增强的V_bi和在接口上改进的载体选择性是PI有效性的关键机制.
这种被动化方法对推进高效矿基太阳能电池和合器件具有前途.

关键词:

开放电路中的电压损失.矿太阳能电池是如何使用的表面被动化表面被动化双联太阳能电池是双联太阳能电池.工作功能工作功能的工作功能.

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