The luminescent coupling effect in a multijunction solar cell is known to help achieve current matching among subcells through carrier redistribution. We demonstrate the carrier redistribution in III-V multijunction solar cell devices using a moisture-resistant, all-inorganic perovskite quantum dot (PQD) film. This hydrophobic PQD film was applied on a full III-V multijunction solar cell device. This successfully demonstrated current redistribution vertically, shown by the increased current collection in the lower bandgap subcells, and laterally, as observed from improved current collection homogeneity in the lower bandgap subcell adjacent to the higher bandgap subcell where the luminescence originated.

中文翻译：

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钙钛矿量子点在具有发光耦合作用的III-V族多结太阳能电池载流子重分配中的应用

已知多结太阳能电池中的发光耦合效应有助于通过载流子重新分配实现子电池之间的电流匹配。我们演示了使用耐湿性，全无机钙钛矿量子点（PQD）膜的III-V多结太阳能电池器件中的载流子重新分布。将该疏水性PQD膜应用于完整的III-V多结太阳能电池器件。这成功地证明了电流的垂直分布，这在较低的带隙子电池中增加了电流收集，而从侧面观察到，从与发光起源于较高的带隙子电池相邻的较低的带隙子电池中改善的电流收集均匀性可以看出。