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基化芳香乙胺酸增强2D拉德尔斯登-波珀矿太阳能电池的晶格稳定性和性能

Yunxin Zhang¹, Rui Wang², Haolin Lu¹

¹Tianjin Key Lab for Rare Earth Materials and Applications, Smart Sensing Interdisciplinary Science Center, Renewable Energy Conversion and Storage Center (RECAST), School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China.

Small (Weinheim an der Bergstrasse, Germany)

|February 13, 2025

概括

一种新的化有机阴离子α-甲乙胺胺 (α-FPEIA) 提高了矿太阳能电池的效率和稳定性. 这种新型离子改善了电荷传输,减少了缺陷,将功率转换效率 (PCE) 提高到18.15%.

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.
有机化学有机化学

背景情况:

化有机对于提高准二维Ruddlesden-Popper矿太阳能电池 (2DRPPSC) 的功率转换效率 (PCE) 是至关重要的.
现有策略主要集中在环上的替代,限制了进一步的性能增长.

研究的目的:

设计和合成一种新型间隔离子,α-甲乙胺胺 (α-FPEIA),其中在胺组的α-碳.
研究α-FPEIA对2DRPPSC的性能和稳定性的影响.
探索一种新的方法来制造高性能和稳定的倒置2DRPPSC.

主要方法:

对 (α-FPEIA) 2PbI4的单晶结构分析,以了解离子-骨架相互作用.
理论计算以评估量子束效应和载体转移特性.
基于α-FPEIA的2DRP PSC设备的制造和表征.

主要成果:

单晶结构揭示了更强的有机阴离子-无机骨架相互作用和增加的Pb-I-Pb角度,增强电荷转移和晶格稳定性.
理论研究表明, (α-FPEIA) 2PbI4中的量子束效应减少,有利于载体转移.
基于α-FPEIA的矿膜表现出更好的晶体质量,更优化的能量水平,更少的陷状态和更长的载体寿命.
(α-FPEIA) 2 ((Cs0.05FA0.8MA0.15) 4Pb5I16 (n=5) 装置的功率转换效率 (PCE) 达到18.15%,显著超过基于 (PEA) 的装置 (15.38%).
观察到未封装的矿太阳能电池的增强稳定性.

结论:

在间隔离子中的胺组α-碳中引入是提高2DRPPSC性能的一个有希望的策略.
新型α-FPEIA离子有效地改善了电荷转移,晶格稳定性,并减少了矿膜中的缺陷.
这种方法为开发高性能和稳定的倒置2DRPPSC提供了新的途径.

关键词:

α-化乙烯乙胺胺胺的含量矿太阳能电池是如何使用的功率转换效率的效率是功率转换效率.雷德尔斯登 - 波珀是什么意思稳定的稳定性稳定的稳定性

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