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Journal of Materials Science

, Volume 42, Issue 24, pp 9915–9919 | Cite as

Synthesis of CaTiO3:Pr,Al phosphors by a peroxide-based route and their photoluminescence properties

  • Tang WanjunEmail author
  • Wang Kun
  • Bi Xuhui
  • Chen Donghua
Article

Abstract

A enhanced photoluminescence red phosphor of CaTiO3:Pr,Al has been synthesized by a peroxide-based route (PBR) and high temperature sintering method. The synthesizing conditions have been optimized in this work. The effect of sintering temperature and boron on the preparation, structure, and photoluminescence were studied by X-ray powder diffraction (XRD), emission, and excitation spectra at room temperature. The red emission is attributed to 1D2 → 3H4 transition of Pr3+, and the excited energy comes from the UV absorption of host and transfers to 4f–5d band of Pr3+. Also, the studies include analysis of charge compensation and Pr3+ concentration effects. Compared with conventional solid-state reaction methods, the PBR significantly lowered temperatures of synthesis, shortened reaction time, and enhanced the photoluminescence intensity.

Keywords

Sinter Temperature Charge Defect Flux Concentration Polymeric Precursor Method H2O2 Addition 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Hubei Key Laboratory for Catalysis and Material Science, College of Chemistry and Material ScienceSouth-Central University for NationalitiesWuhanChina

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