Concentration Dependence of Luminescent Properties for Sr_𝟐TiO_𝟒:Eu^𝟑+ Red Phosphor and Its Charge Compensation

Figure 4

Emission spectra (a) 𝜆_ex=365 nm, (b) 𝜆_ex=395 nm, and (c) 𝜆_ex=465 nm of (Sr_1−xEu_xLi_x)₂TiO₄ (a) 𝑥=5.0%, (b) 𝑥=10.0%, (c) 𝑥=15.0%, (d) 𝑥=20.0%, (e) 𝑥=25.0%.

(a)

(b)

(c)