P‐121: Persistent Luminescence of Ce ³⁺ /Cr ³⁺ Co‐doped Lu ₃ Al _5‐x Ga _x O ₁₂ Phosphors

SID Symposium Digest of Technical Papers（2019）

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摘要

Lu 3 Al 5‐x Ga x O 12 :Ce 3+ ,yCr 3+ powders exhibited a strong green emission under 450 nm excitation. The photoluminescence spectra varied upon changing x values. Cr 3+ ions acted as the electron traps and led to a persistent luminescence, depending ony values.

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Luminescent Materials,Room-Temperature Phosphorescence,Mechanochromic Luminescence

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P‐121: Persistent Luminescence of Ce 3+ /Cr 3+ Co‐doped Lu 3 Al 5‐x Ga x O 12 Phosphors

P‐121: Persistent Luminescence of Ce ³⁺ /Cr ³⁺ Co‐doped Lu ₃ Al _5‐x Ga _x O ₁₂ Phosphors