Preparation and Properties of Ce∶YAG Transparent Ceramics

Qun, 曾群 Zeng; Guang-jie, 修光捷 Xiu; Fei, 王飞 Wang; Jia-ning, 周佳宁 Zhou

doi:10.3788/fgxb20163706.0650

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The positions of the excitation and luminescence band maxima may differ depending on the prehistory of the starting materials used for the synthesis and the synthesis modes. For example, depending on the synthesis modes, YAM and YAP crystal phases are detected in addition to the basic YAG in the material [21,22]. The introduction of Gd and Ga ions as a modifier into the lattice leads to a shift of the luminescence bands to the long and short wavelength regions of the spectrum [23,24].…”

Section: Luminescence Of Ceramics Synthesized In a Radiation Fieldmentioning

confidence: 99%

Express Synthesis of YAG:Ce Ceramics in the High-Energy Electrons Flow Field

et al. 2023

View full text Add to dashboard Cite

YAG:Ce ceramics by the direct action of an electron beam with 1.4 MeV energy were synthesized on a mixture of a stoichiometric composition of Y, Al, and Ce oxides without adding any substances to facilitate the process. The synthesis is realized in a time less than 1 s. The main structural phase of the obtained ceramics is YAG and YAP can be additional. The luminescence characteristics of the synthesized samples, the excitation, luminescence, decay time, and pulsed cathodoluminescence spectra, are similar to those known for YAG:Ce phosphors. The conversion efficiency of the excitation energy into the luminescence of the samples reaches 60–70% of those used for the manufacture of LED phosphors. The set of processes that determine the rate and efficiency of radiation synthesis differs from those occurring during thermal methods by the existence of a high degree of the initial compositions’ ionization under the influence of a radiation flux and a high probability of the decay of electronic excitations into short-lived radiolysis products.

show abstract

Section: Luminescence Of Ceramics Synthesized In a Radiation Fieldmentioning

confidence: 99%