Analysis of photoluminescence highest emission intensity variation of Y2O3:4 at% Eu3+, xLi+ (x = 0.5, 1, 3, 5, 7, 9 at%) nanophosphors with respect to various excitation.
Nanophosphor | Excitation wavelength (nm) | Emission wavelength (nm) | Transition | Maximum intensity (arb. units) | Ratio (arb. units) |
---|---|---|---|---|---|
Y2O3:4 at% Eu3+, x Li+ | λ ex = 254 | λ em = 612 (red) | 5D0 → 7F2 | 4490.00 | 254 : 393 = 6.90 |
λ ex = 393 | λ em = 612 (red) | 5D0 → 7F2 | 650.21 | 254 : 466 = 3.67 | |
λ ex = 466 | λ em = 612 (red) | 5D0 → 7F2 | 1223.03 | 466 : 393 = 1.88 |