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Figure. (a) Temperature-dependent integrated emission intensities of Sr1-xEuxAl2Si3ON6,
temperature-dependent three-dimensional PL spectra of (b1) x = 0.010, and (b2) x = 0.050,
(c) TL spectra of x = 0.010, and x = 0.050, (d) mechanism diagram of electron trapping,
and de-trapping, (e) time-dependent three-dimensional PL spectra of x = 0.050 at 150 ¡ãC,
and (f) the corresponding integrated intensities.