电离型类衍生物抑制接口化学相互作用与高效有机太阳能电池的活性层,具有特殊的设备稳定性
Lin Hu1, Jianwei Quan1,2, Jingbai Li3
1College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China.
Advanced materials (Deerfield Beach, Fla.)
|October 18, 2024
概括
新型类衍生物tbp-Phen和tbp-PhenBr被开发为非富勒烯有机太阳能电池 (NF OSC) 的阴极接口材料 (CIM). tbp-PhenBr CIM显著提高了设备的效率和长期稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 太阳能光伏发电是如何实现的
背景情况:
- 电荷传输间层和活性层之间的接口对于高性能非富勒烯有机太阳能电池 (NF OSC) 来说至关重要.
- 开发高效的阴极接口材料 (CIM) 对于提高NF OSC的效率和运行稳定性至关重要.
研究的目的:
- 合成和评估新型类 (Phen) 衍生物,特别是tbp-Phen和tbp-PhenBr,作为NF OSCs的CIM.
- 调查分子设计,包括固态阻碍和原子电离,对CIM性能和接口相互作用的影响.
- 评估开发的CIM在各种NFOSC配置中的效率,稳定性和适用性.
主要方法:
- 合成了两个新型的类衍生物:tbp-Phen和tbp-PhenBr.
- 使用PM6:Y6作为活性层和tbp-PhenBr或巴托库普罗因 (BCP) 作为CIM制造NF OSC设备.
- 性能特征,包括功率转换效率 (PCE) 测量.
- 在黑暗条件和高温 (85°C) 下进行稳定性测试.
- 评估CIM在不同活性层系统中的适用性.
主要成果:
- 与BCP对照组相比,tbp-PhenBr CIM表现优越,其PCE为16.34%而不是13.70%.
- 基于tbp-PhenBr的设备表现出增强的操作稳定性,在黑暗中保持3264小时和在85°C下220小时的初始效率的80%.
- 该tbp-PhenBr CIM显示了广泛的适用性,在各种活性层系统中实现了显著的19.49%的PCE.
- tbp-PhenBr CIM允许进行热蒸发处理,并产生高度可复制的设备.
结论:
- tbp-PhenBr是NF OSCs的高效CIM,提供更高的效率和显著的长期稳定性.
- tbp-PhenBr的分子设计,其固态阻碍物和电离原子,有效地抑制有害的界面相互作用.
- 这项工作为设计稳定高效有机太阳能电池的先进CIM提供了宝贵的见解.
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