Compared with the lifetime of CHGO:0.075Eu 3+ sample, the lifetime of CHGO:0.075Eu 3+ doped with charge compensator M + (M = Li, Na, K) shows an increasing trend, which indicates that the probability of non-radiative energy transfer will be reduced and the fluorescence lifetime of Eu 3+ will be increased when the charge compensator M + (M = Li, Na, K) is doped with CHGO:0.075Eu 3+ samples.
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Charge Compensation-Directed Enhanced Photoluminescence in M<sup>+</sup> (M = Li, Na, K) Co-Doped Novel Red Phosphor Ca<sub>2.5</sub>Hf<sub>2.5</sub>Ga<sub>3</sub>O<sub>12</sub>:Eu<sup>3+</sup> for Lighting Applications.
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