Evidence map›Paper›PMID 40214870›Full record

ArticleAdvanced materials (Deerfield Beach, Fla.)2025

Revealing Trapped Carrier Dynamics at Buried Interfaces in Perovskite Solar Cells via Infrared-Modulated Action Spectroscopy with Surface Photovoltage Detection.

Beier Hu, Tiankai Zhang, Longren Li, Haoqing Ning, Ganghong Min, Tong Wang, Mengyun Chen, Jiaxin Pan, Niansheng Xu, Thomas J Macdonald and 4 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Advanced materials (Deerfield Beach, Fla.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Beier HuDepartment of Chemistry and Centre for Processable Electronics, Imperial College London, London, W12 0BZ, UK.
Tiankai ZhangDepartment of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, SE-58183, Sweden.
Longren LiDepartment of Chemistry and Centre for Processable Electronics, Imperial College London, London, W12 0BZ, UK.
Haoqing NingDepartment of Chemistry and Centre for Processable Electronics, Imperial College London, London, W12 0BZ, UK.
Ganghong MinDepartment of Electronic and Electrical Engineering, University College London, London, WC1E 7JE, UK.
Tong WangDepartment of Chemistry and Centre for Processable Electronics, Imperial College London, London, W12 0BZ, UK.
Mengyun ChenDepartment of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, SE-58183, Sweden.
Jiaxin PanDepartment of Chemistry and Centre for Processable Electronics, Imperial College London, London, W12 0BZ, UK.
Niansheng XuDepartment of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, SE-58183, Sweden.
Thomas J MacdonaldDepartment of Electronic and Electrical Engineering, University College London, London, WC1E 7JE, UK.
Feng GaoDepartment of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, SE-58183, Sweden.
Igal LevineInstitute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel.
Ziming ChenDepartment of Chemistry and Centre for Processable Electronics, Imperial College London, London, W12 0BZ, UK.ORCID https://orcid.org/0000-0001-5008-3498
Artem A BakulinDepartment of Chemistry and Centre for Processable Electronics, Imperial College London, London, W12 0BZ, UK.ORCID https://orcid.org/0000-0002-3998-2000

Funding

Engineering and Physical Sciences Research Council EP/X030822/1European Union's Horizon 2020 Research and Innovation Program 639750/VIBCONTROLRoyal Society Research Fellows Enhanced Research Expenses RF/ERE/221066UK Research and Innovation EP/X027465/1
6 · The paper itself

Abstract

Interfacial engineering is a proven strategy to enhance the efficiency of perovskite solar cells (PeSCs) by controlling surface electronic defects and carrier trapping. The trap states at the "top" interface between the perovskite and upper charge extraction layers are experimentally accessible and have been extensively studied. However, the understanding of the unexposed "bottom" surface of the perovskite layer remains elusive, due to the lack of selective and non-destructive tools to access buried interface. Here, a new spectroscopy technique is introduced that monitors nanosecond to millisecond dynamics of trapped carriers at the buried interfaces by combining optical trap activation by infrared light with surface photovoltage detection. Applied to various PeSC architectures, this method reveals that most interfacial traps reside between the perovskite and hole transport layer, suggesting a predominance of hole traps (e.g., cation and lead vacancies) over electron traps (e.g., halide vacancies) in the studied PeSC systems. The proposed new approach separates interfacial carrier-loss contributions from the top and buried surfaces, providing design insights for achieving high-performance PeSCs through interface optimization.

Indexed as

buried interfaceperovskite solar cellssurface photovoltagetrapsultrafast action spectroscopy

Identifiers

PMID40214870
PMCPMC12232217

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.