# Unconventional Photoluminescence in Tin Iodide Perovskite Nanocrystals: A Perspective

https://mdr.nims.go.jp/datasets/c1ada470-64bc-42fe-8f56-76f435987218

## File

- [Revised Manuscript.docx](https://mdr.nims.go.jp/filesets/5c5f4a0d-ab26-4c93-8442-0da11348fff6/download) ([Detail](https://mdr.nims.go.jp/filesets/5c5f4a0d-ab26-4c93-8442-0da11348fff6.md))

## Id

c1ada470-64bc-42fe-8f56-76f435987218

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-03-08T07:55:32.630615Z

## Updated at

2026-03-10T07:30:04.329823Z

## Published at

2026-03-10T04:44:50.762272Z

## Doi

https://doi.org/10.48505/nims.6209

## First published url

https://doi.org/10.1021/acs.jpclett.6c00096

## Date published

2026-03-05

## Recorded date published

2026-3-5

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: 'Unconventional Photoluminescence in Tin Iodide Perovskite Nanocrystals:
    A Perspective'
  title_type: original
  lang: en

## Description

- description: Tin iodide perovskite nanocrystals are compelling lead-free candidates
    for solution-processed optoelectronics, yet their reported photoluminescence (PL)
    signatures are marked by persistent and unresolved anomalies. Literature reports
    show that PL energies can vary widely among nanocrystals of comparable size and
    that charge carriers can exhibit a decoupling between PL quantum yield and PL
    lifetime, along with slow hot-carrier relaxation dynamics. Low-temperature studies
    introduce further complexity, including the emergence of additional emissive features
    and nonmonotonic spectral evolution. In this Perspective, we consolidate these
    seemingly disparate observations into a unified framework and critically assess
    the key factors that complicate the interpretation of tin iodide nanocrystal photophysics.
    These include polymorphous or locally distorted crystal structures, structural
    defects coupled with hole doping, and trace two-dimensional Ruddlesden–Popper
    phases that can dominate the observed PL while evading routine structural characterization.
    Finally, we outline actionable research directions, such as phase-pure synthesis
    of highly luminescent nanocrystals through rational ligand and precursor control
    or doping engineering, defect-tolerant surface design, and stringent structure–spectroscopy
    correlations, to transform apparent “anomalies” into testable physical mechanisms
    and to establish robust structure–photophysics relationships for tin halide perovskite
    nanocrystals.
  description_type: abstract
  lang: und

## Creator

- name: Sumit Kumar Dutta
  role: author
  orcid: https://orcid.org/0000-0002-9228-1916
- name: Jia-Kai Chen
  role: author
- name: Naoto Shirahata
  role: author
  orcid: https://orcid.org/0000-0002-1217-7589
- name: Hong-Tao Sun
  role: author
  orcid: https://orcid.org/0000-0002-0003-7941

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

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## Keyword

- subject: luminescent materials
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

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## Embargo



## Journal

- title: The Journal of Physical Chemistry Letters
  issn: '19487185'
  volume: '17'
  issue: '9'
  start_page: 2485
  end_page: 2498

## Conference



## Related item



## Funding

- identifier: 24K01278
  funder_name: Japan Society for the Promotion of Science
- identifier: 24K01462
  funder_name: Japan Society for the Promotion of Science
- identifier: 25K22207
  funder_name: Japan Society for the Promotion of Science
- identifier: 25KF0286
  funder_name: Japan Society for the Promotion of Science

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## Fileset

- id: 5c5f4a0d-ab26-4c93-8442-0da11348fff6
  filename: Revised Manuscript.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 23450161
  md5: 3868c6adbb9d6dc783707462b0485df5

## Thumbnail

fileset_id: 5c5f4a0d-ab26-4c93-8442-0da11348fff6
filename: Revised Manuscript.docx