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自组装的孔选择性接触器,用于高效的Sn-Pb矿太阳能电池和全矿合体

Jingwei Zhu¹, Xiaozhen Huang², Yi Luo¹

¹College of Materials Science and Engineering & Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu, China.

Nature communications

|January 2, 2025

概括

新的自组装单层 (SAM) 带有oligoether侧链,可以提高-矿太阳能电池的孔提取和薄膜质量,从而实现单结和联设备的高效率.

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:

自组装单层 (SAM) 对于高效的矿太阳能电池 (PSC) 是至关重要的.
现有的SAM主要适用于以为基础的PSC.
开发有效的孔选择接触 (HSC) 对于锡基PSC是必不可少的.

研究的目的:

设计和合成新的SAM与-PSCs的oligoether侧链.
调查这些SAM提高设备性能的机制.
评估它们在单节和联矿太阳能电池中的应用.

主要方法:

合成不同长度的橄链链的SAM (MPA-MBT-BA,MPA-EBT-BA,MPA-MEBT-BA).
使用合成的SAM作为HSC制造锡PSC和全矿联太阳能电池.
设备性能的表征,包括效率,开放电路电压 (V_OC) 和操作稳定性.

主要成果:

引入橄乙烯侧链加速了孔提取,并改善了Sn-Pb矿晶体的生长.
SAMs使Sn-Pb矿的表面缺陷被动化,减少了非辐射重组.
根据EBT量身定制的设备在LBG PSC中实现了23.54%的冠军效率,在单质全矿合体中达到28.61%.

结论:

新型SAM带有橄乙烯侧链是高效的Sn-PbPSC和全矿合体的有效HSC.
这些SAM通过提高膜质量和减少重组来提高设备性能.
开发的SAM显示了推动矿太阳能电池技术的巨大潜力.

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