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压力调节可以减缓矿太阳能电池的自然衰变

Yunxiu Shen¹, Tiankai Zhang², Guiying Xu¹

¹Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China.

|October 14, 2024

概括

矿太阳能电池在白天/夜间循环下由于晶格应变而降解得更快. 修改矿格子应变可以显著提高操作稳定性和设备寿命.

科学领域:

材料科学
可再生能源
太阳能发电

背景情况:

矿太阳能电池 (pero-SC) 呈现出快速发展,但缺乏系统的寿命评估研究.
现有的太阳能电池方法可能不适用于太阳能电池,尽管它们具有自愈作用.

研究的目的:

调查太阳能电池寿命评估规则的适用性.
在自然的昼夜循环下确定FAPbI3基的降解机制.
确定增强pero-SC运行稳定的策略.

主要方法:

在连续与白天/夜间循环模式下对-SC降解的比较分析
使用热膨胀/收缩分析确定格子应变为关键降解因子.
化学修饰使用化来调节格子应变.

主要成果:

在白天/夜间循环下,FAPbI3 pero-SCs 的降解速度明显快于连续照明.
在循环模式下的周期性格子应变会导致陷积累和化学降解,从而缩短设备的使用寿命.
在循环模式下,基改性提高了认证效率至26.3%,并增加了T80.

结论:

白天/夜间循环加速-SC降解,挑战连续模式的寿命估计.
热循环造成的格子应变是限制pero-SC运行寿命的关键因素.
调节矿格子应变提供了一个有前途的途径来提高矿的稳定性和寿命.

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