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控制Cs2PbX4的生长纳米结构提高了无机基矿太阳能电池的稳定性,用于潜在的低地球轨道应用
Gaukhar Nigmetova1,2, Zhuldyz Yelzhanova1, Gulzhan Zhumadil1,3
1Department of Electrical and Computer Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan.
ACS applied materials & interfaces
|May 16, 2025
概括
在溶液加工过程中控制溶剂蒸发,可以形成无机低维 (LD) 矿纳米结构. 矿太阳能电池 (PSC) 的这种界面工程显著提高了设备在恶劣条件下的效率和稳定性.
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.
- 纳米技术纳米技术
背景情况:
- 使用低维 (LD) 材料的接口工程对于提高矿太阳能电池 (PSC) 性能至关重要.
- 通过溶液处理在基系统中无机LD矿纳米结构的合成机制需要进一步探索.
研究的目的:
- 调查溶剂蒸发动力学对Cs2PbX4纳米形态在溶液加工过程中的影响.
- 为了证明Cs2PbX4纳米结构的接口工程的有效性,以提高PSC的性能和稳定性.
主要方法:
- 处理CsPbI2Br薄膜的溶液处理,使用受控的溶剂蒸发.
- 在Cs2PbX4纳米结构在CsPbI2Br.的谷物边界的现场生长.
- 在各种老化条件下 (光伏,质子辐射) 描述纳米形态,光电子特性和设备性能 (PCE).
主要成果:
- 控制的溶剂蒸发成功调节了Cs2PbX4纳米形态,导致在粒边界的被动化效应.
- 优化CsPbI2Br/Cs2PbX4异构结构的平均功率转换效率 (PCE) 从10.8%提高到13.5% (25%的增强).
- 观察到增强的稳定性,在经过100小时的老化后,处理的设备保留了98%的初始PCE,在质子辐射后保持了96%,而对照装置的显著降解相比.
结论:
- 控制溶剂蒸发动态是通过溶液加工实现所需的无机LD矿纳米结构的关键.
- 使用Cs2PbX4纳米结构的接口工程显著提高了PSC的效率和运行稳定性.
- 这些发现提供了对LD纳米材料形态控制的更深入的理解,并突出了工程PSC对强大的应用的潜力.
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