Conjugated polymers as functional hole selective layers in efficient metal halide perovskite solar cells

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Document typeArticle
Defense date2017-08-29
PublisherAIMS Press
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Abstract
Interface engineering is still an open question to be solved in the emerging field of metal
halide perovskite solar cells. Although impressive advances have been already made in controlling
the composition and the quality of the active layer, stability issues of complete devices are limiting
yet the forefront of a future next generation of printable photovoltaics. At this point, the choice of
proper charge selective layers is essential to yield perovskite solar cells with an optimal compromise
between efficiency and stability. Even though diverse n-type materials displaying outstanding
properties have been recently proposed, the record performances are yet limited to the use of p-type
small molecule compounds with low hole mobility in their pristine form. In here, conjugated
polymers widely used in the field of polymer solar cells are integrated in perovskite devices to
behave as the hole selective layers. Apart from offering suitable hole mobility and energy matching
with the valence band of the perovskite material to enable efficient charge extraction, their behaviour
as potential functional barrier to protect the underlying perovskite film in standard n-i-p architectures
is also discussed. Future work focused on developing novel alternatives based on more stable and
efficient conjugated polymers might pave the way for the large scale production of perovskite solar
cells.
CitationColodrero, S. Conjugated polymers as functional hole selective layers in efficient metal halide perovskite solar cells. "AIMS Materials Science", 29 Agost 2017, vol. 4, núm. 4, p. 956-969.
ISSN2372-0484
Publisher versionhttp://www.aimspress.com/article/10.3934/matersci.2017.4.956/pdf
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