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FeS对TiO₂层的影响作为QDSC中的支持系统

Edson L Meyer¹, Mojeed A Agoro^1,2

¹Fort Hare Institute of Technology, University of Fort Hare, Private Bag X1314, Alice, Eastern Cape 5700, South Africa.

|September 16, 2024

概括

这项研究通过使氧化与硫化铁 (FeS) 和硫化锡 (SnS) 前体被动化来增强量子点敏感太阳能电池 (QDSSC). 由于协同效应,F/S-2装置实现了6.73%的效率,显著优于其他设备.

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.
纳米技术纳米技术

背景情况:

量子点敏感太阳能电池 (QDSSC) 是可再生能源的前景.
二氧化 (TiO2) 是一种常见的光电极材料.
消极化策略对于提高太阳能电池性能至关重要.

研究的目的:

通过使TiO2与FeS和SnS被动化来提高QDSSC的性能.
为了研究三元TiO2/FeS/SnS结构的协同效应.
分析电荷载体动态和设备效率.

主要方法:

使用FeS和SnS的三个分子前体制造QDSSC.
使用FE-SEM,XRD,TEM,UV-vis,EDS,EIS,CV,LSV和J-V分析进行表征.
对设备形态,构成和光伏性能进行评估.

主要成果:

F-S-2装置展示了相互连接的FeS和SnS结构,促进了电子运动.
在F-S-2中TiO2/FeS/SnS三元结构显示出优越的催化活性和协同效应.
F/S-2装置实现了6.73%的最大功率转换效率,而F/S-1和F/S-3的效率为3.82%.

结论:

用SnS光子吸收器对TiO2的FeS被动化显著提高了QDSSC的性能.
在TiO2/FeS/SnS三元结构中的协同效应是增强电荷载体分离和收集的关键.
F/S-2 设备证明了开发高性能 QDSSC 的可行途径.

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