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Solvent Annealing of Perovskite-Induced Crystal Growth for Photovoltaic-Device Efficiency Enhancement
被引:1580
|作者:
Xiao, Zhengguo
[1
,2
]
Dong, Qingfeng
[1
,2
]
Bi, Cheng
[1
,2
]
Shao, Yuchuan
[1
,2
]
Yuan, Yongbo
[1
,2
]
Huang, Jinsong
[1
,2
]
机构:
[1] Univ Nebraska, Dept Mech & Mat Engn, Lincoln, NE 68588 USA
[2] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA
关键词:
perovskite;
solar cells;
solvent annealing;
grain size;
crystallinity;
HETEROJUNCTION SOLAR-CELLS;
TEMPERATURE;
ELECTRON;
LENGTHS;
D O I:
10.1002/adma.201401685
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Solvent-annealing is found to be an effective method to increase the grain size and carrier diffusion lengths of trihalide perovskite materials. The carrier diffusion length of MAPbI3 is increased to over 1 μm. The efficiency remains above 14.5% when the MAPbI3 thickness changes from 250 nm to 1 μm, with the highest efficiency reaching 15.6%. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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页码:6503 / 6509
页数:7
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