# Considerable improved near-infrared luminescence in ionic-free doped ZnAl2O4 by oxygen defects engineering

https://mdr.nims.go.jp/datasets/46dfce04-d192-42d4-92b7-332aea500447

## File

- [Manuscript-Yang H- J Lumin.pdf](https://mdr.nims.go.jp/filesets/be6ba6b2-8297-4ebe-abba-f865afc6026f/download) ([Detail](https://mdr.nims.go.jp/filesets/be6ba6b2-8297-4ebe-abba-f865afc6026f.md))

## Id

46dfce04-d192-42d4-92b7-332aea500447

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-11-14T04:59:27.479963Z

## Updated at

2024-10-29T07:30:20.884397Z

## Published at

2024-10-29T07:30:22.214198Z

## Doi

https://doi.org/10.48505/nims.4345

## First published url

https://doi.org/10.1016/j.jlumin.2022.119455

## Date published

2022-10-29

## Recorded date published

2023-1

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Considerable improved near-infrared luminescence in ionic-free doped ZnAl2O4
    by oxygen defects engineering
  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, UV-Vis, XPS, EPR, DFT calculation, PLE/PL
    spectroscopy, and temperature-dependent PL spectra analysis. The deficiency of
    zinc results in the appearance of zinc vacancy (VZn) and oxygen vacancy (VO).
    Most of the oxygen vacancy is VO+, along with a small content of VO++ in ZnAl2O4.
    Under the excitation of ultraviolet light at 302 nm, the phosphor outputs a broad
    near-infrared emission band with the maximum at 715 nm. Higher concentration of
    zinc deficiency leads to stronger near-infrared luminescence, because of the increased
    oxygen vacancy. The phosphors exhibited a good thermal stability, and they were
    successfully packaged on the 285-nm UV LED chip, which outputted bright and intense
    near-infrared light, indicating that the NIR phosphors synthesized in this work
    have the prospect application in NIR LED.
  description_type: abstract
  lang: eng

## Creator

- name: Huan Yang
  role: author
- name: Junqing Xiahou
  role: author
- name: Qi Zhu
  role: author
- name: Ji-Guang Li
  role: author
  orcid: https://orcid.org/0000-0002-5625-7361
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: ZnAl2O4
  schema: not_defined
- subject: Near-infrared  luminescence
  schema: not_defined
- subject: Oxygen defects
  schema: not_defined
- subject: NIR LED
  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: 2022-10-29
end_date: 2024-10-29

## Journal

- title: JOURNAL OF LUMINESCENCE
  issn: '00222313'
  volume: '253'
  start_page: 119455
  end_page: 119455

## 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: be6ba6b2-8297-4ebe-abba-f865afc6026f
  filename: Manuscript-Yang H- J Lumin.pdf
  content_type: application/pdf
  size: 2167819
  md5: 1acdbcfe847800bb517b570ae64f4206

## Thumbnail

fileset_id: be6ba6b2-8297-4ebe-abba-f865afc6026f
filename: Manuscript-Yang H- J Lumin.pdf