Pressure-assisted CH3NH3PbI3 morphology reconstruction to improve the high performance of perovskite solar cells

被引:77
|
作者
Xiao, Junyan [1 ]
Yang, Yueyong [1 ]
Xu, Xin [1 ]
Shi, Jiangjian [1 ]
Zhu, Lifeng [1 ]
Lv, Songtao [1 ]
Wu, Huijue [1 ]
Luo, Yanhong [1 ]
Li, Dongmei [1 ]
Meng, Qingbo [1 ]
机构
[1] Chinese Acad Sci, Inst Phys, Key Lab Renewable Energy CAS, Beijing Key Lab New Energy Mat & Devices, Beijing 100190, Peoples R China
基金
中国国家自然科学基金;
关键词
DEPOSITION; CRYSTALLIZATION; LENGTHS;
D O I
10.1039/c4ta06700b
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The pressure is introduced as a parameter in the post-treat process for perovskite solar cells. Via a hot-pressing method, the rough surface of perovskite film becomes smooth, and the pin-holes can be cured. This modified perovskite morphology can help to improve charge transporting and eliminate recombination in the perovskite solar cells. Moreover, significantly enhanced photovoltaic performances with high PCEs of 10.84% and 16.07% are thus achieved in HTM-free type and spiro-OMeTAD based cells, respectively.
引用
收藏
页码:5289 / 5293
页数:5
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