Evidence map›Paper›PMID 39358359›Full record

ArticleNature communications2024

Robust excitonic light emission in 2D tin halide perovskites by weak excited state polaronic effect.

Hongzhi Zhou, Qingjie Feng, Cheng Sun, Yahui Li, Weijian Tao, Wei Tang, Linjun Li, Enzheng Shi, Guangjun Nan, Haiming Zhu

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

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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

10 authors.

Hongzhi Zhou *Department of Chemistry, State Key Laboratory of Extreme Photonics and Instrumentation, Zhejiang Key Laboratory of Excited State Energy Conversion and Storage, Zhejiang University, Hangzhou, China.ORCID http://orcid.org/0000-0001-6947-9265
Qingjie Feng *Department of Physics, Zhejiang Normal University, Jinhua, Zhejiang, China.
Cheng SunDepartment of Chemistry, State Key Laboratory of Extreme Photonics and Instrumentation, Zhejiang Key Laboratory of Excited State Energy Conversion and Storage, Zhejiang University, Hangzhou, China.
Yahui LiResearch Center for Industries of the Future and School of Engineering, Westlake University, Hangzhou, China.
Weijian TaoDepartment of Chemistry, State Key Laboratory of Extreme Photonics and Instrumentation, Zhejiang Key Laboratory of Excited State Energy Conversion and Storage, Zhejiang University, Hangzhou, China.ORCID http://orcid.org/0000-0002-6162-391X
Wei TangState Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, China.
Linjun LiState Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, China.ORCID http://orcid.org/0000-0002-2734-0414
Enzheng ShiResearch Center for Industries of the Future and School of Engineering, Westlake University, Hangzhou, China.ORCID http://orcid.org/0000-0003-1803-3858
Guangjun NanDepartment of Physics, Zhejiang Normal University, Jinhua, Zhejiang, China. gjnan@zjnu.edu.cn.ORCID http://orcid.org/0000-0002-5185-8336
Haiming ZhuDepartment of Chemistry, State Key Laboratory of Extreme Photonics and Instrumentation, Zhejiang Key Laboratory of Excited State Energy Conversion and Storage, Zhejiang University, Hangzhou, China. hmzhu@zju.edu.cn.ORCID http://orcid.org/0000-0001-7747-9054

Funding

National Natural Science Foundation of China (National Science Foundation of China) 22273084Science and Technology Department of Zhejiang Province 2024C01191
6 · The paper itself

Abstract

2D perovskites hold immense promise in optoelectronics due to their strongly bound electron-hole pairs (i.e., excitons). While exciton polaron from interplay between exciton and lattice has been established in 2D lead-based perovskites, the exciton nature and behavior in the emerging 2D tin-based perovskites remains unclear. By combining spin-resolved ultrafast spectroscopy and sophisticated theoretical calculations, we reveal 2D tin-based perovskites as genuine excitonic semiconductors with weak polaronic screening effect and persistent Coulomb interaction, thanks to weak exciton-phonon coupling. We determine an excited state exciton binding energy of ~0.18 eV in n = 2 tin iodide perovskites, nearly twice of that in lead counterpart, despite of same large value of ~0.2 eV from steady state measurement. This finding emphasizes the pivotal role of excited state polaronic effect in these materials. The robust excitons in 2D tin-based perovskites exhibit excitation power-insensitive, high-efficiency and color-purity emission, rendering them superior for light-emitting applications.

Identifiers

PMID39358359
PMCPMC11447268

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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.