Web3 Nov 2016 · C. Luminescence properties of Pr 3+-doped Sr 2 Ta 2 O 7 As an example, the PLE and PL spectra of Sr 2 Ta 2 O 7 :0.01Pr 3+ are presented in Fig. 5 . The PLE spectra exhibit a broad band ranging from 200 to 300 nm peak at 260 nm which is attributed to the 4 f –5 d transition of Pr 3+ when monitoring emission at 486 nm. WebA new Eu 2+ activated, G-type La 2 Si 2 O 7 phosphor was synthesized successfully via a novel SiC-reduction route. The valence state of the Eu …
Nanocrystalline Ternary Wide Band Gap p-Block Metal …
Web28 Oct 2016 · Surface modification of the Sr 2 MgSi 2 O 7: Eu 2+, Dy 3+ phosphors by SiO 2 coating is an effective way to improve photoluminescence intensity and thermostability of the Sr 2 MgSi 2 O 7: Eu 2+, Dy 3+ phosphors. Graphical Abstract Emission spectra of uncoated and SiO 2 -coated phosphors under 365 nm excitation 1 Introduction Web3 Nov 2016 · In this paper, a novel afterglow phosphor based on praseodymium ion doped Sr2Ta2O7 was synthesized successfully by solid-state reaction in the ambient atmosphere. The photoluminescence, afterglow, afterglow decay, and thermoluminescence (TL) properties were investigated in detail. The dependence of photoluminescence properties … se wolf\u0027s-head
Chemiluminescence and Bioluminescence Measurements
WebThe subsolidus phase relations of the SrO–SbO x –CuO system were investigated in air. The samples were equilibrated at 1140K. Under these conditions, 7 binary oxide phases are stable: Sr 2 CuO 3, SrCuO 2, Sr 14 Cu 24 O 41−δ, CuSb 2 O 6, SrSb 2 O 6, Sr 2 Sb 2 O 7 and Sr 7 Sb 2 O 12.The ternary section contains 10 three-phase regions. Web25 Jan 2024 · In this report, the luminescent performances of the self-host blue-emitting Ca 2 Sb 2 O 7 materials were investigated in terms of the sintering temperature and the … WebCdS nanocrystals were synthesized in reverse micelles of water/CTAB + 4-penten-1-ol/benzene. Changing the micellar environment varied the dynamics in the nanocrystals growths. In “pure micelles”, which contained only Cd 2+ and S 2− precursors, the growth was continuous under relatively fast process with the timescales of several tens of minutes. . … sewol ho tragedy