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通过酸甲基辅助的共蒸发,控制晶体化和提高g-CsPbI₃矿的性能

Wenhao Chen^1,2, Shengxing Zhou^1,2, Jiale Cao^1,2

¹Key Laboratory for Optoelectronic Information Perception and Instrumentation of Jiangxi Province, Nanchang Hangkong University, Nanchang, 330063, P. R. China.

|August 22, 2024

概括

将甲基化 (MAI) 添加到三化 (CsPbI3) 矿中,可以改善晶体的生长和稳定性. 这种增强导致光伏设备的效率更高,而无需经过回.

科学领域:

材料科学材料科学材料科学
固态化学固态化学
太阳能光伏发电是如何实现的

背景情况:

三化 (CsPbI3) 矿由于其带隙和稳定性,对联太阳能电池充满希望.
由于有限的加工窗口和晶体方向差,阻碍了CsPbI3的低温共蒸发,影响了性能.
稳定所需的马相 (γ-CsPbI3) 对于光电子应用至关重要.

研究的目的:

改进CsPbI3矿膜的结晶过程和结构完整性.
为了提高CsPbI3的光电子性能和稳定性,用于光伏应用.
研究甲基酸 (MAI) 对CsPbI3膜形成和特性的影响.

主要方法:

将微量甲基化 (MAI) 纳入CsPbI的低温共同蒸发系统3.
使用先进的特征化技术分析薄膜结构,晶体方向和颗粒生长.
使用修改后的CsPbI3薄膜制造的p-i-n光伏设备的制造和测试.

主要成果:

添加MAI促进了柱状谷物生长,稳定了γ-CsPbI3阶段,改善了结构完整性和减少了缺陷.
随着MAI,最佳的Pb/Cs比率转变为1.1:1,而增强的光发光度表明载体运输得到了改善.
一个光伏设备使用MAI修饰的CsPbI3薄膜实现了12%的效率,没有后.

结论:

微量MAI有效地增强了CsPbI3矿的结晶,稳定性和光电子特性.
集成MAI促进了高效的纵向载体运输,并使基于CsPbI3的高性能太阳能电池成为可能.
这种方法为制造高效的CsPbI3矿膜用于光伏应用提供了实用途径.

关键词:

黑相稳定性黑相稳定性共同蒸发是一种共蒸发.结晶控制结晶控制控制甲基化 (MAI) 是一种矿太阳能电池是如何使用的 γ-CsPbI3 的时间.

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