Evidence map›Paper›PMID 40102415›Full record

ArticleLight, science & applications2025

Real-space imaging of photo-generated surface carrier transport in 2D perovskites.

Lijie Wang, Wentao Wu, Jie Yang, Razan Nughays, Yifan Zhou, Esma Ugur, Xi Zhang, Bingyao Shao, Jian-Xin Wang, Jun Yin and 3 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Light, science & applications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Review
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

13 authors.

Lijie WangAdvanced Membranes and Porous Materials Center (AMPM), Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.ORCID http://orcid.org/0000-0002-1786-5962
Wentao WuAdvanced Membranes and Porous Materials Center (AMPM), Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
Jie YangKey Laboratory of Material Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, China.
Razan NughaysAdvanced Membranes and Porous Materials Center (AMPM), Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
Yifan ZhouDepartment of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.
Esma UgurKAUST Solar Center (KSC), King Abdullah University of Science (KAUST), Thuwal, Saudi Arabia.ORCID http://orcid.org/0000-0003-0070-334X
Xi ZhangAdvanced Membranes and Porous Materials Center (AMPM), Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
Bingyao ShaoKAUST Solar Center (KSC), King Abdullah University of Science (KAUST), Thuwal, Saudi Arabia.ORCID http://orcid.org/0000-0002-9334-3592
Jian-Xin WangAdvanced Membranes and Porous Materials Center (AMPM), Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
Jun YinDepartment of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.ORCID http://orcid.org/0000-0002-1749-1120
Stefaan De WolfKAUST Solar Center (KSC), King Abdullah University of Science (KAUST), Thuwal, Saudi Arabia.ORCID http://orcid.org/0000-0003-1619-9061
Osman M BakrKAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.ORCID http://orcid.org/0000-0002-3428-1002
Omar F MohammedAdvanced Membranes and Porous Materials Center (AMPM), Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia. omar.abdelsaboor@kaust.edu.sa.ORCID http://orcid.org/0000-0001-8500-1130

Funding

National Natural Science Foundation of China (National Science Foundation of China) 12347160
6 · The paper itself

Abstract

In layered two-dimensional (2D) perovskites, the inorganic perovskite layers sandwiched between cation spacers create quantum well (QW) structures, showing large exciton binding energies that hinder the efficient dissociation of excitons into free carriers. This leads to poor carrier transport properties and low-performance light-conversion-based devices, and the direct understanding of the underlying physics, particularly concerning surface states, remains extremely difficult, if not impossible, due to the challenges in real-time accessibility. Here, we utilized four-dimensional scanning ultrafast electron microscopy (4D-SUEM), a highly sensitive technique for mapping surface carrier diffusion that diverges from those in the bulk and substantially affects material properties. We directly visualize photo-generated carrier transport over both spatial and temporal dimensions on the top surface of 2D perovskites with varying inorganic perovskite layer thicknesses (n = 1, 2, and 3). The results reveal the photo-induced surface carrier diffusion rates of ~30 cm

Identifiers

PMID40102415
PMCPMC11920587

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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.