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Journal article : Review

Ion migration in perovskite solar cells

Abstract:
Metal halide perovskite solar cells have considerable potential for next-generation solar power production. However, if not controlled, the migration of mobile ions can hamper the stability of perovskite solar cells. Intensive research efforts have devised methods of suppressing ion migration and degradation in perovskite materials, resulting in solar cells that are stable over thousands of hours during accelerated ageing testing. Here, we review the chemical origins of ion migration, its effect on material and device performance and stability, and strategies to mitigate its impact. Ion migration originates in the soft lattice of the halide perovskite framework and its low defect-formation energy, but there are many different strategies to reduce its effects, from compositional engineering of materials and device architecture changes to additives and strain engineering. The field has made great progress in understanding the origin and properties of mobile ions in halide perovskites and has improved operational stability beyond expectations. Nonetheless, there are still ample opportunities to further improve the long-term durability of perovskite solar cells, either by reducing ion migration or its effect on solar cell efficiency.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1038/s41570-025-00790-8

Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Oxford college:
Wolfson College
Role:
Author
ORCID:
0000-0001-6165-1374


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Funder identifier:
https://ror.org/00yjd3n13
Grant:
193174
Programme:
PRIMA project
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Funder identifier:
https://ror.org/04jsz6e67
Grant:
VI.Vidi.213.091
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Funder identifier:
https://ror.org/0472cxd90
Grant:
101043783
101114653
947221
851676
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Funder identifier:
https://ror.org/018mejw64
Programme:
SPP 2196 project
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Funder identifier:
https://ror.org/05r0vyz12
Grant:
PID2022-141850OB-C21


Publisher:
Springer Nature
Journal:
Nature Reviews Chemistry More from this journal
Article number:
41570
Place of publication:
England
Publication date:
2026-01-21
Acceptance date:
2025-12-01
DOI:
EISSN:
2397-3358
Pmid:
41566017


Language:
English
Subtype:
Review
Pubs id:
2366455
Local pid:
pubs:2366455
Deposit date:
2026-02-25
ARK identifier:

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