The Luminescence Properties and Energy Transfer from Ce³⁺ to Pr³⁺ for YAG:Ce³⁺Pr³⁺ Phosphors

Table 2

Fluorescence lifetime of yellow and red light in Al₅O₁₂:Pr_x.

	τ (ns)		τ (μs)
	5d of Ce^3+		^1D2 of Pr^3+
	= 340 nm	= 460 nm	= 340 nm
	= 534 nm	= 534 nm	= 610 nm
0	34.6	35.6	28.5
0.006	16.7	16.8	19.4
0.01	15.6	15.7	16.7
0.03	11.8	12.0	15.1
0.06	9.0	9.5	9.7
0.09	7.5	7.3	8.3