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Heterogeneous photon recycling and charge diffusion enhance charge transport in quasi-2D lead-halide perovskite films

Abstract:

The addition of large hydrophobic cations to lead halide perovskites has significantly enhanced the environmental stability of photovoltaic cells based on these materials. However, the associated formation of two-dimensional structures inside the material can lead to dielectric confinement, higher exciton binding energies, wider bandgaps and limited charge-carrier mobilities. Here we show that such effects are not detrimental to the charge transport for carefully processed films comprising...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's Version

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Publisher copy:
10.1021/acs.nanolett.9b01242

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Condensed Matter Physics
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Condensed Matter Physics
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Publisher:
American Chemical Society Publisher's website
Journal:
Nano Letters Journal website
Volume:
19
Issue:
6
Pages:
3953-3960
Publication date:
2019-05-15
Acceptance date:
2019-05-08
DOI:
EISSN:
1530-6992
ISSN:
1530-6984
Pubs id:
pubs:997728
URN:
uri:2f0ede85-74b2-4228-995e-5030f5303d2f
UUID:
uuid:2f0ede85-74b2-4228-995e-5030f5303d2f
Local pid:
pubs:997728

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