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在高性能CsPbI₂Br 矿太阳能电池中,同时进行结晶调节和泄漏预防

Yanqiang Hu¹, Yifan Zhou¹, Zhi Wang¹

¹School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu 226001, People's Republic of China.

The journal of physical chemistry letters

|April 10, 2024

概括

这项研究引入了一种新的方法,可以创建稳定和高效的全无机离子酸矿矿太阳能电池 (PSC). 新方法显著提高了设备性能和空气稳定性,同时防止有毒泄漏.

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:

完全无机的CsPbI2Br矿为太阳能电池提供了有希望的带隙和热稳定性.
主要挑战包括空气稳定性不佳,效率较低, (Pb2+) 离子毒性.

研究的目的:

开发一种高效且稳定的CsPbI2Br矿太阳能电池 (PSC),具有现场泄漏保护.
解决CsPbI2Br在稳定性,效率和环境影响方面的局限性.

主要方法:

一个简单的策略,使用在CsPbI2Br前体中引入的2.2'-dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone二盐 (BP-9).
BP-9调节结晶,使缺陷无效,并优化能量水平,以改善电荷传输.
用离子对BP-9进行化,以防止泄漏.

主要成果:

优化的PSC实现了17.11%的功率转换效率.
在电流-电压 (J-V) 测量中观察到微不足道的歇斯底里.
显著改善了空气稳定性,并将有毒泄漏量降至最低.

结论:

该BP-9添加剂有效地提高了CSPbI2BrPSC的性能和稳定性.
这一战略为开发高效,环保更安全的矿太阳能电池提供了可行的解决方案.
在现场保护泄漏对于实际应用至关重要.

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