Department of Chemical and Biological Engineering, Korea University , 145 Anam-ro, Seongbuk-gu, Seoul 136-713, Republic of Korea.
Department of Molecular Science and Technology, Ajou University , Suwon 443-749, Republic of Korea.
ACS Appl Mater Interfaces. 2017 Nov 29;9(47):41104-41110. doi: 10.1021/acsami.7b12046. Epub 2017 Nov 16.
High-performance solid-state PbS quantum dot-sensitized solar cells (QD-SSCs) with stable 9.2% power conversion efficiency at 1 Sun condition are demonstrated by introduction of hybrid perovskite interlayer. The PbS QDs formed on mesoscopic TiO (mp-TiO) by spin-assisted successive precipitation and anionic exchange reaction method do not exhibit PbSO but have PbSO oxidation species. By introducing perovskite interlayer in between mp-TiO/PbS QDs and poly-3-hexylthiophene, the PbSO oxidation species are fully removed in the PbS QDs and thereby the efficiency of PbS QD-SSCs is enhanced over 90% compared to the pristine PbS QD-SSCs.
通过引入混合钙钛矿中间层，展示了具有稳定的 9.2%功率转换效率的高性能固态 PbS 量子点敏化太阳能电池（QD-SSCs）。通过旋转辅助连续沉淀和阴离子交换反应方法在介孔 TiO（mp-TiO）上形成的 PbS QD 不表现出 PbSO，但具有 PbSO 氧化物种。通过在 mp-TiO/PbS QDs 和聚 3-己基噻吩之间引入钙钛矿中间层，PbS QD 中的 PbSO 氧化物种被完全去除，从而使 PbS QD-SSCs 的效率相对于原始 PbS QD-SSCs 提高了 90%以上。
