LUMINESCENCE EFFICIENCY OF CERIUM-DOPED YTTRIUM ALUMINUM GARNET CERAMICS FORMED BY RADIATION ASSISTED SYNTHESIS
Alpyssova G. Lisitsyn V. Golkovski M. Mussakhanov D. Karipbayev Z. Grechkina T. Karabekova D. Kozlovskiy A.
2021Technology Center
Eastern-European Journal of Enterprise Technologies
2021#6Issue 6(114)49 - 57 pp.
The variety of applications of yttriumaluminum garnet (YAG)-based luminescentmaterials and the morphology necessary forthese purposes required the development ofmany technologies for their synthesis. Allsynthesis technologies used are complex.The structural phase of yttrium-aluminumgarnet is formed with any technology, attemperatures exceeding 1.500 °C. The startingmaterials for the synthesis are metal oxidesof aluminum, yttrium and other oxides foractivation and modification. It seems possibleto use hard radiation to form a new phase.Radiation synthesis of ceramics is realized inless than 1 s, without the use of any additivesand influences.The synthesis was carried out at theelectron accelerator of the Institute ofNuclear Physics (Novosibirsk). In thiswork, we studied the spectral-kinetic andquantitative characteristics of luminescencefor the first time obtained by the methodof radiation synthesis of ceramic samples ofyttrium-aluminum garnet doped with ceriumwith statistical processing of their values.The dependences of the reproducibility of thespectral characteristics of the luminescenceof the samples on the preliminary preparationof the charge for synthesis have beeninvestigated. Several cycles of luminophorebrightness studies have been performed.It is shown that the obtained ceramicsbased on yttrium-aluminum garnet doped withcerium possesses the required spectral-kineticproperties, and the efficiency of conversionof the chip radiation into luminescence isachieved, which is comparable to thatavailable in commercial phosphors. Themaximum measured values of the positionof the bands are from 553.5 to 559.6 nm.Brightness values range from 4.720 to1.960 cd/m2.It was found that the main reason forthe scatter in the characteristics of theluminescent properties of ceramics of yttriumaluminumgarnet, activated by ceriumobtained by radiation assisted synthesis is thehigh rate of synthesis and, especially, the highrate of cooling of the samples
Luminescence , Phosphors , Synthesis in the radiation field , White leds (light-emitting diode) , Yttrium-aluminum garnet
Text of the article Перейти на текст статьи
Department of Radiophysics and Electronics, Karaganda Buketov University, University str.,28, Karaganda, 100024, Kazakhstan
Department of Materials Science, School of Advanced Manufacturing Technologies, Tomsk Polytechnic University, Lenin ave.,30, Tomsk, 634050, Russian Federation
Laboratory of Industrial Electron Accelerators, Budker Institute of Nuclear Physics of Siberian Branch Russian Academy of Sciences, Academician Lavrentieva ave.,11, Novosibirsk, 630090, Russian Federation
Department of Radio Engineering, Electronics and Telecommunications, L. N. Gumilyov Eurasian National University, Satpayev str.,2, Nur-Sultan, 010008, Kazakhstan
Department of Technical Physics, L. N. Gumilyov Eurasian National University, Satpayev str.,2, Nur-Sultan, 010008, Kazakhstan
Karaganda Buketov University, University str.,28, Karaganda, 100024, Kazakhstan
Institute of Nuclear Physics, National Nuclear Center of the Republic of Kazakhstan, Ibragimova str.,1, Almaty, 050032, Kazakhstan
Department of Radiophysics and Electronics
Department of Materials Science
Laboratory of Industrial Electron Accelerators
Department of Radio Engineering
Department of Technical Physics
Karaganda Buketov University
Institute of Nuclear Physics
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026