Perspective: Understanding of ripening growth model for minimum residual PbI2 and its limitation in the planar perovskite solar cells

被引：52

作者：

Kim, Se-Yun ^{[1
]}

Jo, Hyo Jeong ^{[1
]}

Sung, Shi-Joon ^{[1
]}

Kim, Dae-Hwan ^{[1
]}

机构：

[1] DGIST, Convergence Res Ctr Solar Energy, Daegu 711873, South Korea

来源：

APL MATERIALS | 2016年 / 4卷 / 10期

关键词：

PERFORMANCE; CRYSTALLIZATION; EFFICIENCY; FILMS;

D O I：

10.1063/1.4963841

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The power conversion efficiency of lead halide perovskite solar cells recently surpassed 22.1%. In this study, we suggest the perovskite absorber growth mechanism of the two-step process could be explained by an Ostwald ripening growth model for planar-structure perovskite solar cells. We attempt to find out the source of two main problems such as unreacted PbI2 and non-uniformed morphology by the proposed ripening growth mechanism and experimental results. This growth mechanism opens the way toward understanding a key aspect of the photovoltaic operation of high-efficiency, two-step perovskite solar cells. (C) 2016 Author(s).

引用

页数：9

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