PlumX Metrics
Embed PlumX Metrics

Preparation and luminescence characterization of fine-sized LaSr 2 AlO 5 :Ce phosphor prepared by spray pyrolysis

Journal of Luminescence, ISSN: 0022-2313, Vol: 131, Issue: 7, Page: 1487-1491
2011
  • 24
    Citations
  • 0
    Usage
  • 17
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    24
    • Citation Indexes
      24
  • Captures
    17

Article Description

Fine-sized (La 1−x,Ce x )Sr 2 AlO 5 (LSA:Ce) yellow phosphor particles were prepared by spray pyrolysis. The crystal structure and optical properties of prepared LSA:Ce particles were studied by changing the reduction temperature and the Ce content. The LSA:Ce particles had spherical-like shape and fine size of less than ∼2 μm in the reduction temperature range from 1300 to 1450 °C. The luminescence intensity was steadily improved by elevating the reduction temperature due to the increase of crystallinity. A redshift in the emission peak was observed on increasing the Ce content due to the reduction of Ce–O distance. Concentration quenching in the luminescence intensity was observed when the Ce concentration was 1% ( x =0.01), which was caused mainly by the electric dipole–dipole interaction. The critical transfer distance was calculated as 29 Å, which is in good agreement with the value estimated from the spectral data.

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know