Binary and Ternary Heterometallic (La3+, Gd3+, Y3+)–Eu3+ Functionalized SBA-15 Mesoporous Hybrids: Chemically Bonded Assembly and Photoluminescence

Table 2 Photoluminescent data of the selected ternary homometallic and heterometallic hybrid mesoporous hybrid materials

Systems	phen-Eu-SUASi	phen-Eu-SUASi-SBA-15	phen-La-Eu-SUASi-SBA-15	phen-Gd–Eu-SUASi-SBA-15	phen-Y-Eu-SUASi-SBA-15
τ (ms)	0.213	0.295	0.294	0.283	0.345
I ₀₂ /I ₀₁	1.86	3.39	4.32	5.05	6.00
A ₀₁ (s⁻¹)	50	50	50	50	50
A ₀₂ (s⁻¹)	97.5	176.0	225.0	262.6	312.6
A ₀₃ (s⁻¹)	5.7	0.07	0.05	0	6.7
A ₀₄ (s⁻¹)	6.4	0.08	0.05	0	9.7
A _rad (s⁻¹)	159.6	226.2	275.1	312.6	379.0
η (%)	3.4	6.7	8.1	8.9	13.0