Structural understanding of the spectral characteristics of SnO2: Eu: Y2O3, using extended x-ray absorption fine structure
SnO 2: Eu is a well-known luminescent material, emitting red and orange lines. The intensity
ratio of red to orange emission, being sensitive to the deviation of Eu 3+ ions from symmetric
location, finds wide application as sensor. The luminescence intensity of such lanthanide-
doped sensors is generally optimized by high temperature annealing. However, for the
present system (SnO 2: Eu) it had been found that the red emission suddenly disappears
while annealing beyond 900 C, which can however be recovered by dispersing the system …
ratio of red to orange emission, being sensitive to the deviation of Eu 3+ ions from symmetric
location, finds wide application as sensor. The luminescence intensity of such lanthanide-
doped sensors is generally optimized by high temperature annealing. However, for the
present system (SnO 2: Eu) it had been found that the red emission suddenly disappears
while annealing beyond 900 C, which can however be recovered by dispersing the system …
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