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对于倒置矿太阳能电池而言,还氧化改进的自组装单层

Meng Yuan^1,2, Yiyang Wang^1,2, Zhe Liu^1,2

¹Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.

Nature communications

|December 12, 2025

概括

一种新型的自我组装单层 (SAM) 分子改善了矿太阳能电池 (pero-SCs) 中的孔运输层 (HTL). 这一进步提高了设备的效率和稳定性,为更有效的太阳能能量转换铺平了道路.

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.
纳米技术纳米技术

背景情况:

倒置矿太阳能电池 (pero-SCs) 使用氧化 (NiO_x) /自组装单层 (SAM) 孔输送层 (HTL) 显示高功率转换效率 (PCE).
在NiO_x的表面价值状态变化使高质量的SAM HTL生长复杂化.

研究的目的:

开发一种新的SAM分子,以解决NiO_x表面复杂性,并提高HTL性能.
为了提高NiO_x基板上的SAM层的统一性和覆盖范围.

主要方法:

合成了一种新的SAM分子MeOF-4SHCz,其向NiO3+上富含NiO的区域.
在接口中利用氧化还原反应形成S-O-Ni键.
将MeOF-4SHCz与MeOF-4PACz结合起来,创建一个混合的SAM HTL.

主要成果:

新的SAM分子有助于在NiO_x上形成一个均且覆盖良好的HTL.
优化反转SCs与氧化还原改善 (ROI) -SAM HTL实现了26.5%的PCE (认证为26.28%).
优化的设备表现出增强的稳定性,T₉₀超过1000小时.

结论:

新型SAM分子及其在混合SAM HTL中的应用有效地克服了NiO_x表面挑战.
这种方法显著提高了反转-SCs的PCE和操作稳定性.
这些发现为推进矿太阳能电池技术提供了一个有前途的战略.

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