Correlating O-deficiency and luminescence property of Tb3+ doped SrO

Energy Transfer and Temperature Measurement Performance for NaGd(1-x-y)TbxEuySiO4 Phosphor

“…Emission peaks appear at 493, 546, 599 and 624 nm, responding to the transitions of 5 D 4 → 7 F 6 , 7 F 5 , 7 F 4 and 7 F 3 , respectively. 28,29 Figure 3b shows the Tb 3+ emission intensity vs doping concentration. With the gradual growth of the concentration of Tb 3+ from 10 mol% to 50 mol%, the emission intensity keeps increasing, and the locations and shapes of the emission peaks do not alter significantly.…”

Visible-to-Near-Infrared Mechanoluminescence in Bi-Activated Spinel Compounds for Multiple Information Anticounterfeiting

“…The EPR curves of M 1−x GOB x are plotted in Figure 5d, where the values of the g-factor are close to the V O •• (g = 2.003). 71,72 After the irradiation of the 254 nm UV lamp for 60 s, the value of the gfactor shifts to a low-field signal from g = 2.0034 to 2.0039, implying that the excited electrons are captured by V O •• (Figure 5e). 33 Furthermore, the high-resolution O 1s XPS peak is finely fitted into three peaks (530.7, 531.3, and 532.3 eV), corresponding to lattice oxygen, oxygen vacancy, and interstitial oxygen (Figure 5f).…”