High efficiency CH3NH3PbI3:CdS perovskite solar cells with CuInS2 as the hole transporting layer
High efficiency CH3NH3PbI3:CdS perovskite solar cells with CuInS2 as the hole transporting layer
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以 CuInS2 作为空穴传输层的高效 CH3NH3PbI3:CdS 钙钛矿太阳能电池
DOI：
10.1016/j.jpowsour.2016.12.027
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发表时间：
2017-02-15
影响因子：
9.2
通讯作者：
Wang, Mingtai
中科院分区：
文献类型：
--
作者：
Chen, Chong;Zhai, Yong;Wang, Mingtai
采用前驱体共混溶液法制备了CH 3 NH3 PbI 3：CdS复合薄膜，并将其用于CH 3 NH3 PbI 3：CdS钙钛矿太阳能电池的制备。实验结果表明，CdS的引入有效地改善了ITO/CuInS 2/Al 2 O3/CH 3 NH3 PbI 3：CdS薄膜叠层的光吸收性能，并由于CH 3 NH3 PbI 3/CdS体异质结的形成而降低了所制备太阳能电池中的电荷复合。此外，所形成的CdS/CuInS 2异质结也有助于提高效率。因此，CH 3 NH3 PbI 3/CdS体异质结钙钛矿太阳能电池表现出（16.5 +/-0.2）%的最大功率转换效率，这是先前报道的CdS/CH 3 NH3 PbI 3双层太阳能电池的最佳效率12.2%的135倍。此外，与没有CdS的ITO/CuInS 2/Al 2 O3/CH 3 NH3 PbI 3/PC60 BM/Ag电池的（10.4 +/- 0.2）%的效率相比，该效率提高了59%。(C)2016爱思唯尔B. V.保留所有权利。
The CH3NH3PbI3:CdS composite films are prepared by a newly developed precursor blending solution method, which are further used to fabricate CH3NH3PbI3:CdS perovskite solar cells. Our experimental results demonstrate that the introduced CdS effectively improves the light absorption property of the ITO/CuInS2/Al2O3/CH3NH3PbI3:CdS film stack and decreases the charge recombination in the prepared solar cells due to the formation of CH3NH3PbI3/CdS bulk heterojunction. Furthermore, the formed CdS/CuInS2 heterojunction also contributes to the enhanced efficiency. As a consequence, the CH3NH3PbI3/CdS bulk heterojunction perovskite solar cells exhibit a maximum power conversion efficiency of (16.5 +/- 0.2)%, which is 135 times the best efficiency of 12.2% of previously reported CdS/CH3NH3PbI3 bilayer solar cell. In addition, this efficiency is a 59% improvement compared with the efficiency of (10.4 +/- 0.2)% for the ITO/CuInS2/Al2O3/CH3NH3PbI3/PC60BM/Ag cell without CdS. (C) 2016 Elsevier B.V. All rights reserved.