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通过分子复杂化策略同时抑制多层离子迁移,以实现高性能常规矿太阳能电池

Qian Zhou¹, Yingying Yang², Dongmei He³

¹Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education), College of Optoelectronic Engineering, Chongqing University, 400044, Chongqing, China.

Angewandte Chemie (International ed. in English)

|November 4, 2024

概括

使用二二二四三烯氧酸盐 (TCPO) 的新分子复合策略提高了矿太阳能电池 (PSC) 的稳定性和效率. TCPO抑制了离子迁移,提高了设备的寿命和功率转换效率 (PCE).

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:

离子迁移 (Li+,I-,Ag) 是矿太阳能电池 (PSC) 长期运行稳定性的一个主要障碍.
现有的PSC由于离子扩散而遭受降解,限制了它们的实际应用.
稳定孔输送层 (HTL),矿层和银电极对于设备的寿命至关重要.

研究的目的:

开发一种多功能分子复合策略,以抑制PSC中的离子迁移.
为了提高矿太阳能电池的功率转换效率 (PCE) 和运行稳定性.
调查 bis(2,4,6-三烯) 氧酸盐 (TCPO) 对PSC性能和稳定性的影响.

主要方法:

在PSCs的孔输送层 (HTL) 中将bis(2,4,6-三甲酸盐 (TCPO) 纳入.
利用TCPO作为主机-客户端复合的多功能连接体来稳定设备组件.
设备性能的表征,包括功率转换效率 (PCE) 和在各种压力条件下的长期运行稳定性.

主要成果:

结合TCPO有效地抑制了Li+,I和Ag离子的迁移.
TCPO联合兴奋剂增强了HTL孔的移动性,改善了能量带对齐,并减少了接口缺陷.
使用TCPO的PSC达到25.68%的PCE峰值,在730小时的照明,2800小时的储存和1200小时的65°C下保持超过90%的初始效率.

结论:

使用TCPO的多功能分子复合策略提供了一种有希望的方法,可以显著提高PSC PCE和长期稳定性.
TCPO通过与离子复合而作为稳定剂,防止迁移和改善接口特性.
这项工作为通过合理的分子设计开发高效和耐用的矿太阳能电池提供了一条新的途径.

关键词:

矿石太阳能电池是如何使用的离子迁移离子迁移在p-doping中使用p-doping.稳定的稳定性稳定的稳定性

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