期刊
NANO LETTERS
卷 15, 期 6, 页码 3723-3728出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b00116
关键词
Perovskite; solar cell; CuSCN; hole conductor
类别
资金
- National Basic Research Program [2011CB933303]
- National Natural Science Foundation of China (NSFC) [21321001, 21371012]
Although inorganic hole-transport materials usually possess high chemical stability, hole mobility, and low cost the efficiency of most of inorganic hole conductor-based perovskite solar cells is still much lower than that of the traditional organic hole conductor-based cells. Here, we have successfully fabricated high quality CH3NH3PbI3 films on top of a CuSCN layer by utilizing a one-step fast deposition-crystallization method, which have lower surface roughness and smaller interface contact resistance between the perovskite layer and the selective contacts in comparison with the films prepared by a conventional two-step sequential deposition process. The average efficiency of the CuSCN-based inverted planar CH3NH3PbI3 solar cells has been improved to 15.6% with a highest PCE of 16.6%, which is comparable to that of the traditional organic hole conductor-based cells, and may promote wider application of the inexpensive inorganic materials in perovskite solar cells.
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