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Revealing the origin of voltage loss in mixed-halide perovskite solar cells

Abstract:

The tunable bandgap of metal-halide perovskites has opened up the possibility of tandem solar cells with over 30% efficiency. Iodide-Bromide (I-Br) mixed-halide perovskites are crucial to achieve the optimum bandgap for such tandems. However, when the Br content is increased to widen the bandgap, cells fail to deliver the expected increase in open-circuit voltage (VOC). This loss in VOC has been attributed to photo-induced halide segregation. Here, we combine Fourier Transform Photocurrent Sp...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1039/c9ee02162k

Authors


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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Condensed Matter Physics; Physics - Central
Oxford college:
Worcester College
Oliver, RDJ More by this author
McMeekin, DP More by this author
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Publisher:
Royal Society of Chemistry Publisher's website
Journal:
Energy and Environmental Science Journal website
Publication date:
2019-11-26
Acceptance date:
2019-11-26
DOI:
EISSN:
1754-5706
ISSN:
1754-5692
Pubs id:
pubs:1074726
URN:
uri:67b313e3-e802-44b9-9d6f-e462c08d2d4e
UUID:
uuid:67b313e3-e802-44b9-9d6f-e462c08d2d4e
Local pid:
pubs:1074726
Language:
English
Keywords:

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