کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1261385 971806 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Luminescence investigation of Eu3+-Bi3+ co-doped CaMoO4 phosphor
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Luminescence investigation of Eu3+-Bi3+ co-doped CaMoO4 phosphor
چکیده انگلیسی

A series of Eu3+-Bi3+ co-doped CaMoO4 red phosphors were synthesized via the solid-sate reaction method. The crystal structures of the obtained samples were identified by X-ray powder diffraction (XRD). The photoluminescence property was investigated, and the results showed that the intensity of excitation spectra and emission spectra could be changed with different doping ratios of Bi3+/Eu3+. The proposed explanation of these changes was from the energy transfer between Bi3+ and Eu3+ and the unbalanced charge from the substitution of Eu3+ and Bi3+ for Ca2+ in CaMoO4. The obtained samples are a promising red light emitting phosphor for the needs of different excitation sources with near-UV and blue GaN-based chips.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Rare Earths - Volume 29, Issue 9, September 2011, Pages 837-842