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Trap states, electric fields, and phase segregation in mixed-halide perovskite photovoltaic devices

Abstract:

Mixed-halide perovskites are essential for use in all-perovskite or perovskite–silicon tandem solar cells due to their tunable bandgap. However, trap states and halide segregation currently present the two main challenges for efficient mixed-halide perovskite technologies. Here photoluminescence techniques are used to study trap states and halide segregation in full mixed-halide perovskite photovoltaic devices. This work identifies three distinct defect species in the perovskite material: a c...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1002/aenm.201903488

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
ORCID:
0000-0001-5132-1232
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
ORCID:
0000-0002-0301-8033
More by this author
Department:
PHYSICS
Subgroup:
Condensed Matter Physics
Oxford college:
Nuffield College
Role:
Author, Depositor
Publisher:
Wiley Publisher's website
Journal:
Advanced Energy Materials Journal website
Volume:
10
Issue:
9
Article number:
1903488
Publication date:
2020-01-30
DOI:
EISSN:
1614-6840
ISSN:
1614-6832
Pubs id:
1084377
Local pid:
pubs:1084377

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