Journal of Materials / 2013 / Article / Tab 1

Research Article

Giant Improvement on the Afterglow of Sr4Al14O25:Eu2+,Dy3+ Phosphor by Systematic Investigation on Various Parameters

Table 1

The list of samples with various B contents and Eu2+ and Dy3+ values obtained from EDAX studies correlated with emission intensities.

maximum (nm)
PhasesAmount of
Eu2+ wt%
Amount of
Dy3+ wt%
AGL intensity

S4A7B0 (boron free)505SrAl2O4 and SrAl12O190.125%0.5%0.18
S4A7B0.2 (20 mol% B)498SrAl2O4 and Sr4Al14O250.134%0.69%3.09
S4A7B0.4 (40 mol% B)495Sr4Al14O250.146%0.89%3.31
S4A7B1.0 (100 mol% B)493Sr4Al14O25 and SrAl2B2O70.156%0.92%1.81

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