在热,紫外线和可见光暴露下裸体三酸盐混合化佩洛夫斯基特内微链和晶体方向变化
Yuqin Zou1, Johanna Eichhorn2,3, Jiyun Zhang4
1TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, Technical University of Munich, James-Franck-Str. 1, 85748 Garching, Germany.
概括
矿太阳能电池的不稳定性是一个关键的挑战. 这项研究揭示了微链和结构如何在热和光下演变,显示在热下降解,但在紫外线/光照射下自我优化.
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.
- 固态物理 固态物理
背景情况:
- 矿太阳能电池 (PSC) 显示出很大的前景,但受到环境不稳定的影响.
- 这种不稳定性阻碍了它们的商业化.
- 了解降解机制对于改善PSC寿命至关重要.
研究的目的:
- 在热,紫外线和可见光应激下研究基于CsMAFA的矿膜中的结构演变和微束.
- 阐明这些压力因素对矿膜完整性和性能的影响.
主要方法:
- 草地发生率广角X射线散射 (GIWAXS) 用于分析晶体结构和微链.
- 矿薄膜经过受控的热量,紫外线和阳光浸泡条件.
主要成果:
- 发现微电流在片内分布在梯度上,从表面向内减少.
- 热处理通过相分离和离子迁移诱导了快速分解.
- 紫外线和光线暴露导致降解过程中的结构自我优化,从而产生更光滑的薄膜.
结论:
- 环境压力因素会对矿薄膜产生不同的影响,影响其稳定性和性能.
- 虽然热能导致分解,但暴露于光线可以诱导有益的结构自我优化.
- 这些发现为设计更稳定的矿太阳能电池提供了洞察力.
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