High annealing temperature induced rapid grain coarsening for efficient perovskite solar cells

被引：39
|
作者：
Cao, Xiaobing [1 ]
Zhi, Lili [2 ]
Jia, Yi [3 ]
Li, Yahui [1 ]
Cui, Xian [1 ]
Zhao, Ke [1 ]
Ci, Lijie [2 ]
Ding, Kongxian [4 ]
Wei, Jinquan [1 ]
机构：
[1] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
[2] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Shandong, Peoples R China
[3] Qian Xueshen Lab Space Technol, Youyi Rd 104, Beijing 100094, Peoples R China
[4] Shenzhen Jiawei Photovolta Lighting Co Ltd, New Ind Zone 1-4,Fuping Rd, Shenzhen 518112, Guangdong, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2018年 / 524卷
关键词：
Perovskite; Annealing temperature; Grain coarsen; Columnar grain; Solar cell; CRYSTAL-GROWTH; HALIDE PEROVSKITES; DEVICE EFFICIENCY; FILM MORPHOLOGY; THIN-FILMS; PERFORMANCE; CH3NH3PBI3; PBI2; PASSIVATION; ADDITIVES;
D O I：
10.1016/j.jcis.2018.04.019
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：
Thermal annealing plays multiple roles in fabricating high quality perovskite films. Generally, it might result in large perovskite grains by elevating annealing temperature, but might also lead to decomposition of perovskite. Here, we study the effects of annealing temperature on the coarsening of perovskite grains in a temperature range from 100 to 250 degrees C, and find that the coarsening rate of the perovskite grain increase significantly with the annealing temperature. Compared with the perovskite films annealed at 100 degrees C, high quality perovskite films with large columnar grains are obtained by annealing perovskite precursor films at 250 degrees C for only 10 s. As a result, the power conversion efficiency of best solar cell increased from 12.35% to 16.35% due to its low recombination rate and high efficient charge transportation in solar cells. (C) 2018 Elsevier Inc. All rights reserved.
引用
收藏
页码：483 / 489
页数：7
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