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Journal of Materials Science

, Volume 42, Issue 24, pp 10047–10051 | Cite as

Synthesis and improved photoluminescence of Eu:ZnO phosphor

  • R. Krishna
  • D. Haranath
  • S. P. Singh
  • Harish Chander
  • A. C. Pandey
  • D. Kanjilal
Article

Abstract

Zinc oxide doped with europium has been prepared by high temperature calcination method using ZnO, Eu2O3, and LiOH. Structural characterization by X-ray diffraction and optical studies by photoluminescence spectroscopy together give evidence that Eu3+ is going to the substitutional site of Zn2+. The concentration of chemicals used, sintering temperature, and time are optimized with photoluminescence excitation spectroscopy for a sharp and intense red signal which is a signature of Eu3+. Characteristic red emission at 607 nm is observed using high-energy excitation along with the native deep center emission of ZnO peaking around 525 nm.

Keywords

Zinc Oxide LiOH Eu2O3 High Temperature Calcination Photoluminescence Spectroscopy 

Notes

Acknowledgements

One of the authors RK is thankful to University Grants Commission (UGC) for financial support. We would like to extend our gratitude to Mr. K. N. Sood for SEM measurements.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • R. Krishna
    • 1
  • D. Haranath
    • 2
  • S. P. Singh
    • 2
  • Harish Chander
    • 2
  • A. C. Pandey
    • 1
  • D. Kanjilal
    • 3
  1. 1.Physics DepartmentAllahabad UniversityAllahabadIndia
  2. 2.Division of Electronic MaterialsNational Physical LaboratoryNew DelhiIndia
  3. 3.Inter University Accelerator CentreNew DelhiIndia

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