Luminescent properties of Sr4V2O9:Eu3+,Ba2+ phosphors prepared by a solvothermal method

Structure-dependent luminescence of Eu3+-doped strontium vanadates synthesized with different V : Sr ratios – application in WLEDs and ultra-sensitive optical thermometry

“…This effect is evidence of the concentration quenching of Eu 3+ ion emission. 40,63 In Fig. 8a, only a broad V–O CTB with a maximum at λ ex = 345 nm from matrix excitation can be observed.…”