# Phase tailoring and color-tunable luminescence of LaNbO4:Tb3+,Eu3+ nanophosphors for deep UV-pumped pc-WLEDs application

https://mdr.nims.go.jp/datasets/93fe997c-026f-4397-a0f7-f348415b1adc

## File

- [CERI_LaNbO4.pdf](https://mdr.nims.go.jp/filesets/f3a33adf-aea9-46d3-98aa-8c43c3580086/download) ([Detail](https://mdr.nims.go.jp/filesets/f3a33adf-aea9-46d3-98aa-8c43c3580086.md))

## Id

93fe997c-026f-4397-a0f7-f348415b1adc

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-05-13T07:35:11.984199Z

## Updated at

2026-03-15T03:30:04.571873Z

## Published at

2026-03-15T00:41:16.676516Z

## Doi

https://doi.org/10.48505/nims.4507

## First published url

https://doi.org/10.1016/j.ceramint.2024.03.184

## Date published

2024-03-15

## Recorded date published

2024-6

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Phase tailoring and color-tunable luminescence of LaNbO4:Tb3+,Eu3+ nanophosphors
    for deep UV-pumped pc-WLEDs application
  title_type: original
  lang: en

## Description

- description: A series of LaNbO4:RE3+ (RE=Tb and Eu) phosphors were successfully
    synthesized via a calcination-assisted hydrothermal reaction, where the vital
    roles of solution pH, calcination temperature and NbO43-/La3+ molar ratio in phase/morphology
    evolution of LaNbO4 nanocrystals were elaborated. It was unambiguously demonstrated
    that monoclinic LaNbO4 can be crystallized at solution pH=8-13 after calcination
    at 900 ºC. With pH=10 precursor for example, higher calcination temperature led
    to phase transformation from orthorhombic to monoclinic structure. LaNbO4 nanoparticles
    exhibit self-activated broad-band excitations (1A1 → 1T1,2) and emissions (3T2,1
    → 1A1) within the NbO43- ligand. Intriguingly, Tb3+/Eu3+ incorporations allow
    for phase tailoring and full-visible-spectrum color-tunable luminescence, where
    the latter benefits from the effective NbO43- → Tb3+ → Eu3+ energy transfer. LaNbO4:0.01Tb3+,0.01Eu3+
    phosphor exhibits stronger white-light emission, which gradually drifts to yellowish
    green at high heating temperature. This phosphor is an attractive candidate for
    optical thermometers and warm pc-WLED owning to excellent thermal stability, a
    low correlated color temperature of ~5694 K and a high color rendering index of
    ~90.
  description_type: abstract
  lang: eng

## Creator

- name: Meiting Li
  role: author
  organization: National Institute for Materials Science
  department: Research Center for Functional Materials/Functional Powder and Advanced
    Ceramics Field/Field-Assisted Sintering Group
  ror: https://ror.org/026v1ze26
- name: Bingxin Yuan
  role: author
  organization: Liaoning University of Technology
- name: Xiangyang Zheng
  role: author
  organization: Liaoning University of Technology
- name: Bo Chen
  role: author
  organization: Liaoning University of Technology
- name: Chi Zhang
  role: author
  organization: Liaoning University of Technology
- name: Xuejiao Wang
  role: author
  organization: Bohai 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 SCI LTD

## Managing organization



## Keyword

- subject: LaNbO4:Tb3+,Eu3+
  schema: not_defined
- subject: luminescence
  schema: not_defined
- subject: pc-WLED
  schema: not_defined
- subject: Phase control
  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: 2024-03-15
end_date: 2026-03-16

## Journal

- title: Ceramics International
  issn: '02728842'
  volume: '50'
  issue: '11'
  start_page: 20632
  end_page: 20643

## 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: f3a33adf-aea9-46d3-98aa-8c43c3580086
  filename: CERI_LaNbO4.pdf
  content_type: application/pdf
  size: 2491550
  md5: 9ac0d49612caed47fb7c55d43c393145

## Thumbnail

fileset_id: f3a33adf-aea9-46d3-98aa-8c43c3580086
filename: CERI_LaNbO4.pdf