Evidence map›Paper›PMID 40640151›Full record

ArticleNature communications2025

Non-monotonic size-dependent exciton radiative lifetime in CsPbBr

Abdullah S Abbas, Daniel Chabeda, Daniel Weinberg, David T Limmer, Eran Rabani, A Paul Alivisatos

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

6 authors.

Abdullah S Abbas *Department of Materials Science and Engineering, University of Berkeley, Berkeley, CA, USA.ORCID http://orcid.org/0000-0001-8374-4993
Daniel Chabeda *Department of Chemistry, University of California, Berkeley, CA, USA.
Daniel WeinbergDepartment of Chemistry, University of California, Berkeley, CA, USA.
David T LimmerDepartment of Chemistry, University of California, Berkeley, CA, USA.ORCID http://orcid.org/0000-0002-2766-0688
Eran RabaniDepartment of Chemistry, University of California, Berkeley, CA, USA.ORCID http://orcid.org/0000-0003-2031-3525
A Paul AlivisatosDepartment of Materials Science and Engineering, University of Berkeley, Berkeley, CA, USA. paul.alivisatos@uchicago.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lead halide perovskite nanocrystals have attracted intense interest due to their desirable optical properties, diverse structural features, and size-tunable excitonic structure. Here we show that, under ambient conditions, a non-monotonic trend in radiative lifetime emerges from the interplay of size, lattice symmetry and excitonic structure. Small nanocrystals exhibit long radiative lifetimes due to weakly emissive excitons, but the oscillator strength increases and shortens the lifetime for nanocrystals approaching intermediate confinement. For larger nanocrystals with higher exciton density of states (DOS), the radiative lifetime is lengthened due to depopulation of the bright exciton manifold into thermally accessible dim states. A size-dependent structural symmetry lowering transition from cubic to orthorhombic is observed by XRD and MD simulations, and the non-monotonic radiative lifetime trend emerges only in lower symmetry structures with an increased dim exciton DOS. These findings shed light on the impact of nanocrystal size and structure on radiative lifetime and pave the way for tailored optical materials in various optical applications.

Identifiers

PMID40640151
PMCPMC12246409

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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.