کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1486242 1510554 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Site selective spectroscopy of Eu3+ in heavy-metal oxide glasses
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Site selective spectroscopy of Eu3+ in heavy-metal oxide glasses
چکیده انگلیسی

In this work, we report time-resolved line-narrowed fluorescence spectra of the 5D0 → 7F0−6 transitions of Eu3+-doped 40Bi2O3–40PbO–10Ga2O3–10GeO2 and 60GeO2–25PbO–15Nb2O5 glasses obtained at 10 K by using different resonant excitation wavelengths along the 7F0 → 5D0 transition. The wavelength dependence of the 7F1 splitting in both glasses suggests the existence of a broad distribution of Eu3+ centres possessing a variety of local field environments. The influence of the local coordination ions on the optical properties of Eu3+ has been studied by analysing the dependence of the crystal field (CF) parameters on the excitation energy along the 7F0 → 5D0 transition.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 352, Issues 23–25, 15 July 2006, Pages 2448–2451
نویسندگان
, , , , ,