skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Inhomogenous Broadening, Charge Compensation, and Luminescence Quenching in Ce 3+-Doped Sr 3AlO 4F Phosphors

Abstract

The local coordination around luminescent ions in phosphors can affect the properties of these materials. Here, we analyze the Ce 3+ luminescence for the various Ce 3+ centers in Sr 3AlO 4F-based phosphors and use the excitation, emission, and quenching of these phosphors to infer aspects of the local coordination. It is shown that Ce 3+ centers with lower energy 4f 1→5d 1 absorption bands are likely from charge compensation effects by the replacement of F - by O 2-. In addition, at higher RE 3+ concentrations, additional Ce 3+ centers with even lower energy 4f 1→5d 1 absorption bands are present, presumably due to Ce 3+-RE 3+ pair formation and O 2- charge compensation. These Ce 3+ centers with lower energy 4f 1→5d 1 absorption bands have their luminescence strongly quenched at room temperature. The relationships between composition and Ce 3+ luminescence quenching for Sr 3AlO 4F-based phosphors are also discussed, giving evidence that Ce 3+(5d 1) ionization is the main cause for luminescence quenching in these materials.

Authors:
 [1];  [2];  [3];  [4]
  1. General Electric (GE) Global Research, Niskayuna, NY (United States)
  2. General Electric (GE) Global Research, Bangalore (India)
  3. Univ. of Georgia, Athens, GA (United States). Dept. of Physics and Astronomy
  4. Univ. of Tartu (Estonia). Inst. of Physics
Publication Date:
Research Org.:
General Electric (GE), Boston, MA (United States)
Sponsoring Org.:
USDOE; Tallinn Univ. of Technology (Estonia); European Union (EU)
OSTI Identifier:
1438467
Grant/Contract Number:  
FC26-06NT42934; EE0003251
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
ECS Journal of Solid State Science and Technology
Additional Journal Information:
Journal Volume: 5; Journal Issue: 1; Journal ID: ISSN 2162-8769
Publisher:
Electrochemical Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Ce3+; Energy transfer; Luminescence; Phosphor

Citation Formats

Setlur, A. A., Porob, D. G., Happek, U., and Brik, M. G. Inhomogenous Broadening, Charge Compensation, and Luminescence Quenching in Ce3+-Doped Sr3AlO4F Phosphors. United States: N. p., 2015. Web. doi:10.1149/2.0111601jss.
Setlur, A. A., Porob, D. G., Happek, U., & Brik, M. G. Inhomogenous Broadening, Charge Compensation, and Luminescence Quenching in Ce3+-Doped Sr3AlO4F Phosphors. United States. doi:10.1149/2.0111601jss.
Setlur, A. A., Porob, D. G., Happek, U., and Brik, M. G. Thu . "Inhomogenous Broadening, Charge Compensation, and Luminescence Quenching in Ce3+-Doped Sr3AlO4F Phosphors". United States. doi:10.1149/2.0111601jss. https://www.osti.gov/servlets/purl/1438467.
@article{osti_1438467,
title = {Inhomogenous Broadening, Charge Compensation, and Luminescence Quenching in Ce3+-Doped Sr3AlO4F Phosphors},
author = {Setlur, A. A. and Porob, D. G. and Happek, U. and Brik, M. G.},
abstractNote = {The local coordination around luminescent ions in phosphors can affect the properties of these materials. Here, we analyze the Ce3+ luminescence for the various Ce3+ centers in Sr3AlO4F-based phosphors and use the excitation, emission, and quenching of these phosphors to infer aspects of the local coordination. It is shown that Ce3+ centers with lower energy 4f1→5d1 absorption bands are likely from charge compensation effects by the replacement of F- by O2-. In addition, at higher RE3+ concentrations, additional Ce3+ centers with even lower energy 4f1→5d1 absorption bands are present, presumably due to Ce3+-RE3+ pair formation and O2- charge compensation. These Ce3+ centers with lower energy 4f1→5d1 absorption bands have their luminescence strongly quenched at room temperature. The relationships between composition and Ce3+ luminescence quenching for Sr3AlO4F-based phosphors are also discussed, giving evidence that Ce3+(5d1) ionization is the main cause for luminescence quenching in these materials.},
doi = {10.1149/2.0111601jss},
journal = {ECS Journal of Solid State Science and Technology},
issn = {2162-8769},
number = 1,
volume = 5,
place = {United States},
year = {2015},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share: