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CsPbI₂Br太阳能电池的显著性能提升通过使用CsPbBr₃纳米晶体的双重功能策略

Yanzhou Wang¹, Yali Li¹, Zhe Gao¹

¹LONGi Institute of Future Technology, and School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China.

ACS applied materials & interfaces

|November 8, 2023

概括

使用三化纳米晶实现17.03%的效率的化PeroVskite太阳能电池. 这种双重功能策略增强了二氧化二氧化太阳能电池中的电子传输和孔提取.

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:

矿太阳能电池 (PSC) 为传统光伏提供了有希望的替代方案.
二氧化 (CsPbI2Br) 是有效的PSC的关键材料.
改善电荷传输和减少重组对于PSC性能至关重要.

研究的目的:

为了提高 CsPbI2Br 太阳能电池的性能.
通过使用CsPbBr3纳米晶体 (NCs) 引入一种双功能策略.
为了提高功率转换效率 (PCE) 和设备稳定性.

主要方法:

通过添加和表面修改对CsPbI2Br与CsPbBr3NC进行处理.
形成一个"电子桥",以增强电子传输.
构建一个梯度异质连接点,以改进孔挖掘.
在CsPbI2Br层中缺陷被动化.

主要成果:

CsPbBr3 NCs创造了一个"电子桥",促进光生成的电子运输.
表面的修改导致了梯度异质连接,增强了孔的提取.
缺陷被动抑制载体重组,改善电荷载体动力学.
一个CsPbI2Br太阳能电池实现了显著的PCE17.03%.

结论:

使用CsPbBr3NCs的双功能策略显著提高了CsPbI2Br太阳能电池的性能.
"电子桥"和梯度异质连接有效地改善了电荷传输和提取.
这种方法代表了基于CsPbI2Br的光伏发电的高效途径.

关键词:

在CsPbBr3纳米晶体中.在 CsPbI2Br 太阳能电池中.具有双重功能的战略.电子桥是一种电子桥.梯度异质连接的梯度异质连接.

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P-N junction

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