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在Situ中,修饰诱导了后面界面场被动化效应,使得高效的石太阳能电池效率超过11%的效率

Rensheng Wang¹, Yongfeng Li², Sisi Jia¹

¹Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province, College of Physics and Electronic Information Engineering, Zhejiang Normal University, Jinhua, Zhejiang 321004, People's Republic of China.

ACS applied materials & interfaces

|August 22, 2024

概括

研究人员开发了一种新的场被动效应 (FPE) 铜锡硫化 (CZTSSe) 太阳能电池,使用合瓦纳的化. 这项创新通过改善后方电极接口的载体运输来显著提高太阳能电池的效率.

科学领域:

材料科学材料科学材料科学
可再生能源是可再生能源的来源.
半导体物理半导体物理

背景情况:

高质量的背电极接口 (BEI) 对于高效的铜锡硫化 (CZTSSe) 太阳能电池至关重要,需要抑制重组.
传统的化学被动化是常见的,但BEI的现场被动化效应 (FPE) 仍未得到充分研究.

研究的目的:

在 CZTSSe 太阳能电池的 BEI 引入和研究现场消极效应 (FPE).
通过FPE优化BEI来提高CZTSSe太阳能电池的性能.

主要方法:

在Mo:V电极沉积和化过程中, (V) 在现场被纳入MoSe2界面层.
形成了一个p型MoSe₂:V层,创建了一个p-MoSe₂:V/p-CZTSSe接口,带有优化的带对齐.
分析了费米能量水平的变化,以了解被动化机制.

主要成果:

在BEI成功地建立了一个现场VI-FPE接口.
将V纳入MoSe₂形成了一个p型层 (MoSe₂:V),其费米能量水平向下转移为0.62 eV.
与参考电池 (cell-ref) 相比,具有FPE (cell-FPE) 的CZTSSe太阳能电池显示了显著改善的光伏参数.

结论:

在现场开发的VI-FPE有效地抑制了重组并增强了BEI的载体运输.
优化的带对齐和改进的载波动力学导致CZTSSe太阳能电池效率从8.28%大幅增加到11.11%.
这项工作展示了一种有希望的策略,通过使用现场被动化的工程 BEI 来提高 CZTSSe 太阳能电池的性能.

关键词:

在CZTSSe.背后的电极接口接口现场被动化效应的影响.凯斯特石太阳能电池是什么意思 p-MoSe2:V/p-CZTSSeSe 的时间表.

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