Evidence map›Paper›PMID 40191252›Full record

ArticleNational science review2025

Giant deformation potential induced small polaron effect in Dion-Jacobson two-dimensional lead halide perovskites.

Yuling Huang, Shaokuan Gong, Qianxia Chen, Congcong Chen, Zhangqiang Yang, Kang Wang, Jie Xue, Daozeng Wang, Haipeng Lu, Lingling Mao and 3 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in National science review, 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. 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

13 authors.

Yuling HuangSUSTech Energy Institute for Carbon Neutrality, Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
Shaokuan GongSUSTech Energy Institute for Carbon Neutrality, Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
Qianxia ChenGuangdong Basic Research Centre of Excellence for Structure and Fundamental Interactions of Matter, Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics, South China Normal University, Guangzhou 510006, China.
Congcong ChenDepartment of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.
Zhangqiang YangDepartment of Chemistry, Xiamen University, Xiamen 361005, China.
Kang WangDepartment of Chemistry, Xiamen University, Xiamen 361005, China.
Jie XueDepartment of Chemistry, The Hong Kong University of Science and Technology, Hong Kong 999077, China.
Daozeng WangSUSTech Energy Institute for Carbon Neutrality, Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
Haipeng LuDepartment of Chemistry, The Hong Kong University of Science and Technology, Hong Kong 999077, China.ORCID https://orcid.org/0000-0003-0252-3086
Lingling MaoDepartment of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.
Ye YangDepartment of Chemistry, Xiamen University, Xiamen 361005, China.
Jin-Zhu ZhaoGuangdong Basic Research Centre of Excellence for Structure and Fundamental Interactions of Matter, Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics, South China Normal University, Guangzhou 510006, China.
Xihan ChenSUSTech Energy Institute for Carbon Neutrality, Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China.ORCID https://orcid.org/0000-0001-7907-2549

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Halide perovskites have attracted substantial attention recently. However, the strong lattice distortion effects in these materials have led to debates regarding the nature of charge carriers. While the behavior of carriers in bulk three-dimensional materials is well-documented, the characteristics of carriers in two-dimensional perovskites remain less well understood. In this study, we provide direct and clear evidence of small polaron formation through transient spectroscopic analysis of deformation potential and dynamic lattice screening. Coherent acoustic phonon wave signals reveal a strong coupling between carriers and lattice degrees of freedom, leading to small polaron formation and a spin lifetime enhancement of up to 10-fold. Utilizing optical Kerr spectroscopy and theoretical modeling, we observed a notably long polarization response time at room temperature, attributed to lattice distortion and small polarons approximately two-unit cells in size. Temperature-dependent coherent phonon dynamics and X-ray diffraction further confirmed the presence of small polarons. This discovery underscores the significance of the cooperative interplay between exciton dynamics and the small polaron field, particularly in influencing the Coulomb exchange interaction of excitons.

Indexed as

coherent acoustic phonondeformation potentialpolaronic carriersspin polarizationultrafast spectroscopy

Identifiers

PMID40191252
PMCPMC11970252

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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.