Planar CH3NH3PbI3 Perovskite Solar Cells with Constant 17.2% Average Power Conversion Efficiency Irrespective of the Scan Rate

Planar CH3NH3PbI3 perovskite solar cells with constant 17.2% average power conversion efficiency irrespective of the scan rate are described. These properties are attributed to the formation of a pure CH3 NH3 PbI3 thin film by the introduction of a HI solution. Thereby, charge‐injection/separation e...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2015-06, Vol.27 (22), p.3424-3430
Main Authors: Heo, Jin Hyuck, Song, Dae Ho, Han, Hye Ji, Kim, Seong Yeon, Kim, Jun Ho, Kim, Dasom, Shin, Hee Won, Ahn, Tae Kyu, Wolf, Christoph, Lee, Tae-Woo, Im, Sang Hyuk
Format: Article
Language:English
Subjects:
crystallization
hybrid solar cells
methylammoniumleadtribromide
perovskite
solubility
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Summary:Planar CH3NH3PbI3 perovskite solar cells with constant 17.2% average power conversion efficiency irrespective of the scan rate are described. These properties are attributed to the formation of a pure CH3 NH3 PbI3 thin film by the introduction of a HI solution. Thereby, charge‐injection/separation efficiency, charge‐collection efficiency, diffusion coefficient, carrier lifetime, and traps are improved.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201500048