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

Title
Perspective: Understanding of ripening growth model for minimum residual PbI2 and its limitation in the planar perovskite solar cells
Authors
Kim, Se-YunJo, Hyo JeongSung, Shi-JoonKim, Dae-Hwan
DGIST Authors
Sung, Shi-Joon; Kim, Dae-Hwan
Issue Date
2016-10
Citation
APL Materials, 4(10)
Type
Article
Article Type
Article
Keywords
EfficiencyGrowth MechanismsGrowth ModelingHigh-EfficiencyOstwald RipeningPerovskitePerovskite Solar CellsPhotovoltaic OperationPlanar StructurePower Conversion EfficienciesSolar CellsSolar Power GenerationTwo-Step Process
ISSN
2166-532X
Abstract
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. © 2016 Author(s).
URI
http://hdl.handle.net/20.500.11750/5076
DOI
10.1063/1.4963841
Publisher
American Institute of Physics Publishing
Related Researcher
Files:
There are no files associated with this item.
Collection:
Convergence Research Center for Solar Energy1. Journal Articles


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