کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8147591 | 1524151 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Conversion of the valence states of Eu ions in YVO4 with the gamma-ray irradiation
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We investigated the effect of the gamma-ray irradiation on the emission property of the Eu ion doped YVO4. We clearly observed that on exposure to the gamma-ray, sharp emission peaks originating from the Eu3+ ions were suppressed dramatically. Instead, a broad emission feature near 470â¯nm, which was attributed to the Eu2+ ions, emerged. The quantitative analysis on the emission spectra suggest that the valence state of the Eu ions in our samples was changed from 3 + to 2 + by the gamma-ray irradiation. The conversion of the valence state of the Eu ions was closely related to the formation of the oxygen vacancies induced by the gamma-ray irradiation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 18, Issue 8, August 2018, Pages 864-868
Journal: Current Applied Physics - Volume 18, Issue 8, August 2018, Pages 864-868
نویسندگان
Junhwi Lim, Ye-Eun Na, Y.S. Lee, Sang Don Bu,