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热稳定的倒置矿太阳能电池的终点,结合和能量学分子工程

Jiaonan Sun^1,2,3, Jiarong Wang^1,3, Ze-Fan Yao⁴

¹Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, China.

Journal of the American Chemical Society

|August 22, 2025

概括

研究人员通过用碳酸盐终端替代,为矿太阳能电池 (PSC) 开发了新的被动化材料. 这一策略提高了设备的稳定性和效率,在PSC中实现了超过26%的功率转换效率,并在恶劣条件下保持性能.

科学领域:

材料科学
可再生能源
太阳能发电

背景情况:

低维/三维异构矿太阳能电池 (PSC) 具有高功率转换效率 (PCE),超过26%.
由于在热和光应力下离子扩散,PSC中的离子界面被动化材料可能会损害装置的稳定性.

研究的目的:

为矿太阳能电池 (PSC) 开发一种新的被动化策略,以提高设备的稳定性和效率.
通过修改界面被动化材料来抑制PSC中的离子扩散.

主要方法:

用 (PEA-Boc) 和纳胺 (ND-Boc) 支架合成的碳酸盐分子,用碳酸盐支架取代传统的末端.
研究了调节离子终端和扩大被动化材料的结合骨干对层间扩散的影响.
使用开发的被动化材料评估PSC的性能和稳定性.

主要成果:

碳酸盐被动化有效抑制PSC中的层间扩散.
在ND-Boc被动化PSC中,小面积设备的PCE为26.04%,小型模块的PCE为21.83%.
根据ISOS-L-2I协议在85°C测试1500小时后,封装的基于ND-Boc的PSC保留了96.7%的初始PCE.

结论:

碳酸盐被动化策略,特别是ND-Boc,为制造高效和强大的PSC提供了一种简单且广泛适用的方法.
这种方法有效地抑制了离子扩散,从而提高了设备的稳定性和寿命,促进了PSC技术的实际应用.

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