In this work, high-performance four-terminal solution-processed tandem solar cells were fabricated by using dye-sensitized solar cells (DSSCs) as top-cells and lead sulfide (PbS) colloidal quantum dot solar cells (CQDSCs) as bottom-cells. For dye-sensitized top-cells, three different dye combinations were used while the titanium dioxide (TiO₂) scattering layer was removed to maximize the transmission. For the PbS bottom-cells, quantum dots with different sizes were compared. Over 12% power conversion efficiency has been achieved by using the XL dye mixture and 890 nm PbS QDs, which shows a significant efficiency enhancement when compared to single DSSC or CQDSC subcells.

中文翻译：

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具有染料敏化和基于PbS胶体量子点的子电池的四端子串联太阳能电池

在这项工作中，通过使用染料敏化太阳能电池（DSSC）作为顶部电池和硫化铅（PbS）胶体量子点太阳能电池（CQDSC）作为底部电池来制造高性能的四端子溶液处理串联太阳能电池。 。对于染料敏化的顶层电池，使用了三种不同的染料组合，同时去除了二氧化钛（TiO ₂）散射层以最大化透射率。对于PbS底部电池，比较了具有不同大小的量子点。通过使用XL染料混合物和890 nm PbS QD，已经实现了超过12％的功率转换效率，与单个DSSC或CQDSC子电池相比，其效率得到了显着提高。