Preparation and characterization of Eu3+ doped powder spinel phosphors (MgAl1.8Y0.2−xO4)

Preparation and photoluminescence characteristics of Eu3+-doped MgAl1.8Y0.2O4 nanocrystals

“…4. The measured luminescence spectra of the nanocrystals are almost similar to that obtained by Rani et al [9].These spectra show the following emission transitions:…”

“…It requires very high temperature and prolonged heating to obtain pure phase. In the last few years, various improved wet-chemical methods, such as sol-gel [8,9], coprecipitation [10], and solvothermal [11] methods, have been used to synthesize phosphors. These methods have advantages of fine homogeneity, high reactivity of starting materials, and lower sintering temperatures.…”

“…The spinel has been found to be an efficient host lattice for the RE ion Eu 3+ [9]. In the present work, MgAl 1.8 Y 0.2Àx Eu x O 4 (x ¼ 1-6 mol%) nanocrystals have been synthesized by combustion method using urea as organic fuel.…”

Photoluminescent changes of Eu3+ in ZnO–SiO2 glasses induced by femtosecond laser

“…It can be seen that only one ESR signal at 350 mT was observed in not irradiated glass and two ESR signals at 150 and 350 mT were observed in irradiated glass. According to the results reported in references [15,16], the signal at 150 mT was from Eu 2+ ions and 350 mT from Eu 3+ . This result indicated that the partial reduction from Eu 3+ to Eu 2+ occurred due to fs laser irradiation.…”

Rare-Earth Metals-Doped Nickel Aluminate Spinels for Photocatalytic Degradation of Organic Pollutants

“…Additionally, magnesium, copper, and strontium aluminates were doped with lanthanide ions. Eu [24,25], Yb, and Er [26] were doped into manganese aluminate; Sm was incorporated into copper aluminate [27]; and Er and Yb were doped into strontium aluminate [28]. Additionally, iron oxide of the spinel structure was doped with lanthanide ions, i.e., Sm, Eu, and Gd, to boost the magnetic behavior [29].…”