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通过结合工程改善高性能FACsPbI矿太阳能电池的空气稳定性

Bo Yu¹, Zhiwei Xu¹, Hualin Liu¹

¹School of Physics and Optoelectronics, South China University of Technology, Guangzhou, Guangdong 510640, China.

ACS applied materials & interfaces

|January 3, 2024

概括

这项研究介绍了一种使用1-pentanethiol (PT) 来增强矿太阳能电池 (PSC) 的硫化策略. PT修改改改进了缺陷被动化,增强了PCE,并显著提高了对湿度和热量的运行稳定性.

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.
太阳能光伏发电是如何实现的

背景情况:

矿太阳能电池 (PSC) 提供高功率转换效率 (PCE),但其稳定性和缺陷不佳.
矿晶体易受潮湿和环境压力的影响,原因是它们的结合和离子-电子特性较弱.

研究的目的:

开发一种硫化策略,以抑制缺陷并增强PSC的稳定性.
为了提高矿太阳能电池的性能和长期耐用性,用于商业应用.

主要方法:

在矿膜中引入1-pentanethiol (PT) 进行整体硫化.
不协调的Pb离子和空缺缺陷通过强的Pb-S债券被动化.
用PT修改的反转PSC装置的制造和表征.

主要成果:

PT修改有效地使缺陷无源化,减少非辐射重组和优化能量水平.
经过PT修改的PSC实现了22.46%的冠军PCE,超过了控制装置 (20.21%).
观察到增强的稳定性,设备在空气中1600小时后保留了91.5%的PCE,在85°C下800小时后超过85%.

结论:

使用PT的硫化策略提供了一种有希望的方法,可以同时改善PSC中的PCE和稳定性.
这种方法解决了公共服务公司的关键局限性,为其商业可行性铺平了道路.
由PT形成的强Pb-S键有效稳定矿结构并提高设备性能.

关键词:

一-坦乙醇 (Pentanethiol) 是一种最优化的能源水平安排.消极化缺陷消极化缺陷矿太阳能电池是如何使用的稳定的稳定性稳定的稳定性

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P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...