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Roles of Fullerene‐Based Interlayers in Enhancing the Performance of Organometal Perovskite Thin‐Film Solar Cells
Author(s) -
Liang PoWei,
Chueh ChuChen,
Williams Spencer T.,
Jen Alex K.Y.
Publication year - 2015
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201402321
Subject(s) - materials science , perovskite (structure) , fullerene , thin film , thin film solar cell , nanotechnology , optoelectronics , chemical engineering , organic chemistry , chemistry , engineering
Roles of fullerene‐based interlayers in enhancing the performance of organometal perovskite thin‐film solar cells are elucidated. By studying various fullerenes, a clear correlation between the electron mobility of fullerenes and the resulting performance of derived devices is determined. The metallic characteristics of the bilayer perovskite/fullerene field‐effect transistor indicates an effective charge redistribution occurring at the corresponding interface. A conventional perovskite thin‐film solar cell derived from the C 60 electron‐transporting layer (ETL) affords a high power conversion efficiency of 15.4%.
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