作者: Yu Gong , Yuhua Wang , Xuhui Xu , Yanqin Li , Ziqiang Jiang
DOI: 10.1149/1.3176668
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摘要: Long-afterglow phosphors Ca 1.998-x MgSi 2 O 7 :Eu 2+ 0.002, Ce 3+ x (0 ≤ 0.04) were prepared by a solid-state reaction under weak reductive atmosphere. Spectroscopy measurements demonstrated that energy transferred from to Eu . The energy-transfer efficiency was 61 %. Thermoluminescence measurement revealed co-doped samples created much appropriate traps leading the enhancement of afterglow. afterglow emission spectra in acted as sensitizers and [CaO 8 ] (535 nm) activators. duration prolonged nearly two times compared with single-doped sample. A possible mechanism presented discussed.