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氨酸作为矿层的强大消极剂,用于高效和稳定的矿太阳能电池

Xian Hou^1,2, Zhenjia Yuan¹, Jinlong Liu¹

¹Institute of Optoelectronic Materials and Devices, School of Materials Science and Engineering, Lanzhou University of Technology Lanzhou 730050 Gansu China houx@lut.edu.cn yufc72@163.com.

|June 7, 2023

概括

氨酸分子的添加有效地使矿太阳能电池 (PSC) 的缺陷无效. 这种缺陷被动化提高了功率转换效率 (PCE),并改善了设备在环境条件下的稳定性.

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:

矿太阳能电池 (PSC) 患有内在缺陷,如空位和不协调的离子.
这些缺陷导致电荷载体重组,降低功率转换效率 (PCE).
缺陷被动化对于提高PSC性能和稳定性至关重要.

研究的目的:

调查使用陶素作为多功能分子用于矿膜中缺陷被动化.
提高矿太阳能电池 (PSC) 的功率转换效率 (PCE) 和稳定性.

主要方法:

在CH3NH3PbI3 (MAPbI3) 矿前体溶液中加入牛素.
制造FTO/TiO2/矿/碳结构PSCs.
缺陷密度的表征,载体重组,PCE和设备在环境条件下的稳定性.

主要成果:

氨酸通过其硫酸和氨基群有效地使非协调的Pb2+和I-离子被动.
氨酸修饰的PSC获得了13.19%的PCE,与控制装置 (11.26%) 相比,增加了17.14%.
氨酸被动化器件表现出显著增强的稳定性,在环境空气中720小时后保留了58.74%的初始PCE,而对照器件则保持了33.98%.

结论:

氨酸是矿太阳能电池的一个有前途的缺陷被动化剂.
氨酸的使用导致改善PCE和长期运行稳定性.
这一战略为开发更高效,更耐用的矿光伏设备提供了可行的途径.

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