发光合在单立体矿/并联太阳能电池中的作用
Khoa Nguyen1, Oliver Fischer2,3, Christoph Messmer2,3
1School of Engineering, The Australian National University, Canberra, 2601, Australia.
Small (Weinheim an der Bergstrasse, Germany)
|August 3, 2024
概括
一种新方法量化了双联太阳能电池中的发光合 (LC). 超过85%的顶部电池发出的光子提高了底部电池的性能,减少了电流不匹配,以提高效率.
科学领域:
- 太阳能光伏和可再生能源
- 材料科学与工程 材料科学与工程
- 光学物理学的光学物理学
背景情况:
- 发光合 (LC) 对于单体联太阳能电池的效率至关重要.
- 需要对LC进行准确的定量评估,因为光学建模预测有局限性.
研究的目的:
- 提出一种非破坏性技术,用于定量评估单体联太阳能电池中的发光合效应.
- 为了弥补当前用于LC评估的方法的差距.
主要方法:
- 开发了一种非破坏性技术来测量从顶部电池发出的光子的比率,这些光子有助于底部电池的电流,而不是从前面逃逸的光子.
- 将该方法应用于矿/单质双联太阳能电池.
主要成果:
- 证明,矿顶细胞发出的超过85%的光子有助于在底细胞中产生额外的电流.
- 显示了子细胞之间电流不匹配的显著减少,特别是当被低带隙子细胞限制时.
结论:
- 开发的方法为单体联太阳能电池提供了准确的,定量LC评估.
- 这种技术为子细胞表征,能量输出预测和优化用于现实世界的应用提供了重要的数据.
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