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对于高效的-矿太阳能电池,还氧化能源屏障管理

Zhangwei He¹, Feng Wang², Yiman Dong¹

¹Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.

National science review

|April 10, 2025

概括

研究人员开发了一种新方法,通过防止锡氧化,稳定锡矿太阳能电池. 这一突破提高了设备的性能和效率,为更强大的矿太阳能电池技术铺平了道路.

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.
太阳能光伏发电是如何实现的

背景情况:

窄带间混合锡- (Sn-Pb) 矿太阳能电池 (PerSC) 由于缺陷密度高,其性能有限.
主要的挑战是Sn2+的容易氧化,导致p型自我兴奋剂和性能降低.

研究的目的:

通过管理氧化还原能屏障,制定构建高质量的Sn-Pb矿的策略.
通过减轻Sn2+氧化,提高Sn-Pb PerSCs的稳定性和效率.

主要方法:

采用1.1'-bis(diphenylphosphino) ferrocene (DPPF) 来创建一个氧化还原能屏障,保护Sn2+免受氧化.
DPPF的氧化产品与锡空隙固定,有效地减少矿材料中的陷密度.

主要成果:

优化倒置的PerSC实现了功率转换效率 (PCE) 的23.5% (23.38%经过认证).
实现了0.89V的高开放电路电压,并将能量损失降低到0.36 eV.
在与宽带间隙PerSC相结合时,四端全矿联太阳能电池达到26.4%的PCE.

结论:

氧化还原能量屏障策略成功地构建了高质量的Sn-Pb矿,缺陷密度降低.
这种方法显著提高了Sn-Pb PerSCs的性能和稳定性.
这些发现表明,推进全矿联太阳能电池技术是一个有前途的途径.

关键词:

在Sn-Pb矿石太阳能电池.能源屏障是一个能源屏障.氧化氧化还原剂是什么双联太阳能电池是一个双联太阳能电池.

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