Thermoluminescence investigation of sol–gel derived and γ-irradiated SnO2:Eu3+ nanoparticles

Gamma ray induced thermoluminescence properties of Eu3+ doped SnO2 phosphor

“…So a comparison of TL glow curves as well as obtained kinetic parameters with the existing literature is carried out and summarized in Table 5. It indicates that the same material prepared via sol-gel method show the glow peak position at 205 C and 255 C after 0.5-2 kGy g-ray irradiation [7]. The hydrothermal synthesized phosphor show the glow peaks at around 102 C, 186 C and 307 C after the irradiation of the sample by 1638 Gy b-ray irradiation [22].…”

“…Reliable dosimetric studies of any TL material also require its kinetic parameters So, it is worthwhile to know the kinetic parameters associated with different traps for each glow peak. Namrata et al [7] recently reported the TL characteristics and dose response of g-irradiated sol-gel derived SnO 2 :Eu 3+ . Nanostructured SnO 2 particles have been prepared by using different methods such as sol-gel, precipitation and hydrothermal etc.…”

“…Nanostructured SnO 2 particles have been prepared by using different methods such as sol-gel, precipitation and hydrothermal etc. [7][8][9]. Among various methods, combustion synthesis is an effective approach for the production of Eu 3+ doped SnO 2 phosphors owing to its low cost, energy saving and environmental protection [10].…”

Lanthanide luminescence sensitization via SnO2 nanoparticle host energy transfer

“…In the case of Eu 3+ , 5 major peaks can be detected in the emission spectra of SnO 2 :Eu 3+ when excited above the SnO 2 band gap: 5 D 0  7 F 0 (557 nm), 5 D 0  7 F 1 (593 nm), 5 D 0  7 F 2 (613 nm), 5 D 0  7 F 3 (650 nm), 5 D 0  7 F 4 (698 nm). Several other successful photoluminescence sensitization studies on Eu 3+ have been reported [3,6,10,11,[29][30][31][32][33][34][35][36][37][38][39][40][41]. Recent publications on Eu 3+ sensitization no longer focus on the novelty of emission efficiency but rather on the mechanisms of energy transfer -whether of resonance or non-resonance type [37] -and on the defect states in the nano lattice reportedly contributing to the overall efficiency.…”

Люмінесценція Нанорозмірного Діоксиду Олова. Огляд

“…This interest is due to the promising use of such materials as phosphors [1], in LED applications [2], in solid-state optical amplifiers and tunable lasers [3], etc. Thermoluminescence of tin dioxide doped by Europium [4] is used as a detection phenomenon for dosimetry purposes. Stannates of calcium, barium and strontium with a perovskite-like structure have attracted the attention of researchers to create IR phosphors as an alternative to expensive phosphors.…”