协同界面导电性调制决定了矿太阳能电池在运行中的歇斯底里斯演变
Rana Yekani1, Han Wang1, Stephanie Bessette1
1Materials Engineering Department, McGill University, Montreal, QC H3A 0C5, Canada. george.demopoulos@mcgill.ca.
Physical chemistry chemical physics : PCCP
|February 26, 2024
概括
紧的二氧化 (c-TiO2) 电子输送层的接口配置显著影响矿太阳能电池 (PSC) 的性能和歇斯底里. 平面c-TiO2通过光浸泡增强了填充因子,与基于脚手架的设计不同.
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.
- 设备物理 设备物理
背景情况:
- 矿太阳能电池 (PSC) 是一个有前途的可再生能源技术.
- 电子输送层 (ETL) 在PSC的性能和稳定性中起着至关重要的作用.
- 对ETL的接口工程对于优化电荷提取和最大限度地减少hysteresis至关重要.
研究的目的:
- 调查紧二氧化 (c-TiO2) ETL配置对PSC填充因子 (FF) 和歇斯底里的影响.
- 为了比较平面c-TiO2 ETL与基于支架架构的ETL的性能.
- 阐明在不同操作条件下控制PSC性能的界面动态.
主要方法:
- 使用平面和支架式c-TiO2 ETL的PSC的制造和表征.
- 对长时间光浸和扫描速率的填充因子 (FF) 变化进行分析.
- 电化学阻抗光谱 (EIS) 用于研究界面电荷传输动态.
主要成果:
- 平面c-TiO2 ETL显示显著的FF改善与光浸泡,与基架式PSC相比.
- 平面c-TiO2 ETL的厚度增加有利于前向扫描期间的FF保留.
- 在矿/运输层界面上的界面导电性调制决定了性能变化.
结论:
- c-TiO2 ETL接口的配置是调制PSC中FF和hysteresis的一个关键因素.
- 平面c-TiO2为FF稳定性提供了优势,特别是在长时间的照明下.
- 了解接口动态对于设计高性能和稳定的PSC至关重要.
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