# Nanopowder synthesis enabling 1350 ºC full densification of (Gd,La)2O2S:Pr3+ luminescent ceramics via pressureless sintering and the effect of La3+ doping

https://mdr.nims.go.jp/datasets/10c45099-ec47-48c3-bc42-7de7c0ed6fbb

## File

- [Revised Manuscript.pdf](https://mdr.nims.go.jp/filesets/a69c51b5-bbcc-4d2f-8237-fef8fc39b9c2/download) ([Detail](https://mdr.nims.go.jp/filesets/a69c51b5-bbcc-4d2f-8237-fef8fc39b9c2.md))

## Id

10c45099-ec47-48c3-bc42-7de7c0ed6fbb

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-07-22T01:59:41.953841Z

## Updated at

2026-02-14T13:51:47.268804Z

## Published at

2026-05-01T23:22:07.432965Z

## Doi

https://doi.org/10.48505/nims.4598

## First published url

https://doi.org/10.1016/j.jeurceramsoc.2024.04.079

## Date published

2024-05-02

## Recorded date published

2024-9

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Nanopowder synthesis enabling 1350 ºC full densification of (Gd,La)2O2S:Pr3+
    luminescent ceramics via pressureless sintering and the effect of La3+ doping
  title_type: original
  lang: en

## Description

- description: Pr3+ activated Gd2O2S (Gd2O2S:Pr3+) ceramics are important scintillators
    for X-ray computed tomography, whose fabrication generally requires harsh sintering
    conditions, such as 1650-1750 °C for pressureless sintering and ~1300-1500 °C
    and tens to hundreds MPa for pressure assisted sintering. We synthesized in this
    work a series of [(Gd1-xLax)0.99Pr0.01]2O2S (GLOS:Pr3+) nanopowders of fine crystallite
    size, high specific surface area and unimodal size distribution through two-step
    calcination of coprecipitated amorphous precursors. Dilatometry analysis confirmed
    that the nanopowders possess excellent sinterability, and fully dense GLOS:Pr3+
    ceramics were successfully fabricated via pressureless sintering in an Ar/H2 gas
    mixture at a temperature as low as 1350 °C. La3+ doping was found to substantially
    enhance densification/grain growth and the 3P0-3H4 main emission (~510 nm) of
    Pr3+, and tends to elongate the fluorescence lifetime of the Pr3+ emission (~1.89-2.66
    μs).
  description_type: abstract
  lang: eng

## Creator

- name: Zhenqi Song
  role: author
  organization: Northeastern University
- name: Fan Li
  role: author
  organization: Northeastern University
- name: Sihan Feng
  role: author
  organization: Northeastern University
- name: Zhiyuan Pan
  role: author
  organization: Northeastern University
- name: Xuejiao Wang
  role: author
  organization: Bohai University
- name: Qi Zhu
  role: author
  organization: Northeastern University
- name: Ji-Guang Li
  role: author
  orcid: https://orcid.org/0000-0002-5625-7361
  organization: National Institute for Materials Science
  department: Research Center for Electronic and Optical Materials/Optical Materials
    Field/Polycrystalline Optical Material Group
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Elsevier

## Managing organization



## Keyword

- subject: Oxysulfide ceramics
  schema: not_defined
- subject: Nanopowder
  schema: not_defined
- subject: Low-temperature sintering
  schema: not_defined
- subject: Pr3+ luminescence
  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: 2024-05-02
end_date: 2026-05-03

## Journal

- title: Journal of the European Ceramic Society
  issn: '09552219'
  volume: '44'
  issue: '12'
  start_page: 7350
  end_page: 7356

## 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: a69c51b5-bbcc-4d2f-8237-fef8fc39b9c2
  filename: Revised Manuscript.pdf
  content_type: application/pdf
  size: 1503932
  md5: 2cc6e26904127dc15337697407520c91

## Thumbnail

fileset_id: a69c51b5-bbcc-4d2f-8237-fef8fc39b9c2
filename: Revised Manuscript.pdf