# Breaking the balance of chemical ratio in ZnAl2O4 to regulate activators and traps for multimode luminescence - A new strategy

https://mdr.nims.go.jp/datasets/ec3cb829-19f3-4da9-a5d0-069335d9564c

## File

- [Manuscript-Yang H- Mater Today Chem.pdf](https://mdr.nims.go.jp/filesets/3d1297c3-54ee-4e52-af45-de4b9639a85c/download) ([Detail](https://mdr.nims.go.jp/filesets/3d1297c3-54ee-4e52-af45-de4b9639a85c.md))

## Id

ec3cb829-19f3-4da9-a5d0-069335d9564c

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-11-14T04:24:38.641905Z

## Updated at

2025-07-31T23:30:48.292643Z

## Published at

2025-07-31T23:16:53.810956Z

## Doi

https://doi.org/10.48505/nims.4332

## First published url

https://doi.org/10.1016/j.mtchem.2023.101663

## Date published

2023-07-31

## Recorded date published

2023-8

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Breaking the balance of chemical ratio in ZnAl2O4 to regulate activators
    and traps for multimode luminescence - A new strategy
  title_type: original
  lang: en

## Description

- description: The spinel-structured ZnAl2O4 phosphors with deficiency of zinc were
    synthesized by high-temperature solid-state reaction, which were characterized
    by a series of techniques, including XRD, DFT calculation, PLE/PL spectroscopy,
    TL, persistent luminescence decay curves, and temperature-dependent PL spectra
    analysis. The deficiency of zinc results in the appearance of zinc vacancy (VZn)
    and oxygen vacancy (VO), and the increased oxygen vacancy defects inhibit the
    self-reduction of Mn4+. Under the excitation of 325 nm and 426 nm ultraviolet
    light, the phosphor showed green emission at 510 nm, red emission at 678 nm, and
    near-infrared emission at 767 nm. Due to the increase of vacancy defects, the
    higher concentration of zinc deficiency leads to stronger emission of green light,
    red light, and near-infrared light. The phosphor exhibited different light signals
    at different excitation wavelengths, and the thermal stability of Mn2+ and Mn4+
    luminescence is inconsistent. The above characteristics show that the multimode
    luminescent phosphor synthesized in this work has broad application prospects
    in the field of fluorescence anti-counterfeiting.
  description_type: abstract
  lang: eng

## Creator

- name: H. Yang
  role: author
- name: G. Shen
  role: author
- name: S. Tang
  role: author
- name: J.-G. Li
  role: author
  orcid: https://orcid.org/0000-0002-5625-7361
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Q. Zhu
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: ZnAl2O4
  schema: not_defined
- subject: " Mn2+"
  schema: not_defined
- subject: Mn4+
  schema: not_defined
- subject: Vacancy defect
  schema: not_defined
- subject: Multimode luminescence
  schema: not_defined
- subject: " Anti-counterfeiting"
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2023-08-01
end_date: 2025-08-01

## Journal

- title: Materials Today Chemistry
  issn: '24685194'
  volume: '32'
  start_page: 101663
  end_page: 101663

## Conference



## Related item



## Funding



## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 3d1297c3-54ee-4e52-af45-de4b9639a85c
  filename: Manuscript-Yang H- Mater Today Chem.pdf
  content_type: application/pdf
  size: 1196314
  md5: d765b8db0c4f6ede4d7fb34bda1abefe

## Thumbnail

fileset_id: 3d1297c3-54ee-4e52-af45-de4b9639a85c
filename: Manuscript-Yang H- Mater Today Chem.pdf