نتایج جستجو برای: ce3 doped

تعداد نتایج: 48705  

Journal: :Bulletin of Electrical Engineering and Informatics 2022

A high heat solid-state technique was used to produce a set of phosphor Sr4La(PO4)3O:Ce3+,Tb3+,Mn2+ (Sr:Mn). In Sr4La(PO4)3O, the luminescence characteristics, resistance, and energy conversion between Ce3+ Tb3+ as well Mn2+ were thoroughly researched. Introducing activator particles can significantly increase dim green-emitting from red-emitting Mn via conversion. The color emissions might be ...

2012
AuthorsSzu-Chun Yu Cheng-Wie Chang Kai-Chien Hsu Jeffrey C. S. Wu

H2 and O2 were produced in a twin reactor with two compartments divided by a Nafion membrane. Ce3+ and Ce4+ are adopted as redox mediator, which transferred the electron and holes between H2-evolving catalyst(Pt/SrTiO3:Rh) and O2 evolving catalyst (BiVO4). The optimal pH in the twin reactor was 1. Water splitting under Ce3+/Ce4+ equilibrium concentrations between two compartments gave the highe...

Journal: :Optical and Quantum Electronics 2022

Co-doping Ce3+ ions and size-tunable SnO2 nanocrystals into Tb3+ embedded silica thin films produces a ninefold enhancement of related emission. Firstly, by optimizing the doping ratio Sn4+ annealing temperature, size nanoparticles was well tailored for achieving greatly enhanced photoluminescence emission from ions. In order to further increase ions, proper concentration were also added materi...

Journal: :Crystals 2022

Technological factors and processes contributing to the scintillation mechanism have been considered in quaternary garnet ceramics doped with Ce(Gd,Lu)3Al2Ga3O12. The super-stoichiometric additive of gadolinium material composition or its co-doping a low concentration Mg were found be effective tools suppress phosphorescence garnet, confirming that it is not an intrinsic property material. Mont...

Journal: :Journal of Non-crystalline Solids 2022

The absorption spectra of the Fe– and Ce–doped 15Na2O–15CaO–70SiO2 glasses (mol%), melted in oxidising reducing conditions, have been analysed. A repeatable set fitting parameters has developed for Ce3+ Ce4+ ions, while previously published were used Fe–ions. Ce–ions significantly decrease proportion Fe2+ions both electric– gas–melted glasses, ions content increases due to mutual redox between ...

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