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Journal of Materials Science

, Volume 45, Issue 1, pp 146–150 | Cite as

Temperature-dependent luminescence of gallium-substituted YAG:Ce

  • Rachael HanselEmail author
  • Steve Allison
  • Greg Walker
Article

Abstract

The temperature-dependent lifetime of trivalent cerium was determined in (Y1−xCex)3Al2.5Ga2.5O12 (where x = 0.1 and 0.2) over a temperature range of 20−120 °C. In both samples, the quenching temperature is significantly lower compared to (Y1−xCex)3Al5O12. The difference in quenching temperatures is explained by evaluating the changes in the lattice, which occur as a result of substituting the Al3+ for Ga3+. The information presented in this report is useful for future design of phosphors for use as non-contact temperature sensors.

Keywords

Gallium Yttrium Aluminum Garnet Luminescent Lifetime Thermographic Phosphor Distorted Cube 

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Vanderbilt UniversityNashvilleUSA
  2. 2.Oak Ridge National LaboratoryOak RidgeUSA

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