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Photo and cathodoluminescence of commercial YAG:Ce based phosphors in UV region
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms ( IF 1.3 ) Pub Date : 2020-06-10 , DOI: 10.1016/j.nimb.2020.06.004
V.M. Lisitsyn , A.T. Tulegenova , L.A. Lisitsyna , V.A. Vaganov , N.P. Soshchin , E.F. Polisadova , Kh.A. Abdullin , Ju Yangyang

The luminescence spectral kinetic characteristics in UV and visible spectral regions of a group of commercial YAG:Ce based phosphors are investigated under excitation by UV radiation in the spectral range of 300–210 nm (photoluminescence, PL) and high-energy electrons (0.25 MeV, pulse cathodoluminescence, PCL). It was established that UV luminescence appears in all phosphors, whose spectrum consists of bands in the region of 312, 320, 380 nm and 530–565 nm. The kinetics of the PCL UV luminescence decay in all phosphors shows at least one, two components in different phosphors but is differ from kinetics of luminescence in the visible region. The possible structure of luminescence centers responsible for UV luminescence is discussed.



中文翻译:

商用YAG:Ce基荧光粉在紫外区的光致发光

在300-210 nm(光致发光,PL)和高能电子(0.25 MeV)的紫外辐射激发下,研究了一组商业YAG:Ce基磷光体在紫外和可见光谱区域的发光光谱动力学特性。 ,脉冲阴极发光,PCL)。可以确定的是,所有磷光体中都出现紫外线发光,其光谱由312、320、380 nm和530–565 nm范围内的谱带组成。在所有磷光体中,PCL UV发光衰减的动力学在不同的磷光体中显示出至少一种,两种成分,但与可见光区域的发光动力学不同。讨论了负责UV发光的发光中心的可能结构。

更新日期:2020-06-10
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