کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1684449 | 1010529 | 2010 | 4 صفحه PDF | دانلود رایگان |
This paper reports thermoluminescence (TL) glow and emission, optical absorption and optically stimulated emission studies made on Ce3+ doped KBr single crystals irradiated at room temperature. Optical absorption and photoluminescence studies confirm the presence of cerium ions in the trivalent state. A broad and intense blue emission around at 290 and 390 nm, attributable to the transition from 5d excited state to the 4f1 ground state of Ce3+ ions could be observed in the photoluminescence emission. Two TL glow peaks were observed at 374 and 422 K. Presence of characteristic emission due to Ce3+ ions in the optically stimulated emission at the F-band confirms the participations of the Ce3+ ions in the defect production and recombination processes.
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 268, Issue 10, 15 May 2010, Pages 1653–1656