Inhomogeneities in the optoelectronic properties of polycrystalline Cu(In,Ga)Se2 absorbers can limit solar cell performance. Now, researchers quantify the spatial distribution of charge carrier concentration with nanometre resolution and show how different alkali-metal post-deposition treatments reduce the grain-to-grain fluctuations.

中文翻译：

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载流子浓度已解决

多晶 Cu(In,Ga)Se2 吸收体光电特性的不均匀性会限制太阳能电池的性能。现在，研究人员以纳米分辨率量化载流子浓度的空间分布，并展示了不同的碱金属后沉积处理如何减少晶粒间的波动。