کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5441408 | 1510388 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
SmF3 doping and heat treatment manipulated Ag species evaluation and efficient energy transfer from Ag nanoclusters to Sm3Â + ions in oxyfluoride glass
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Oxyfluoride glasses containing Ag species (including Ag+ ions, Ag nanoclusters and Ag nanoparticles) and Sm3Â + ions were prepared by melt-quenching method. The structure and luminescence properties were studied by absorption spectra, transmission electron microscopy, as well as steady and time-resolved photoluminescence spectra. The experimental results indicated that the doping of SmF3 can accelerate the formation and growth of Ag nanoclusters due to the introduction of valence-variable Sm2Â +/3Â + ions and more F-center clusters in glass host. Besides, benefitting from the size-dependent tunable luminescence properties, the Ag nanoclusters were proved to be an efficient broadband sensitizer for Sm3Â + ions. Heat treatment may but not necessarily improve the photoluminescence intensity of Ag nanoclusters and Sm3Â + ions, depending on the amount of Ag nanoclusters and non-luminescent Ag nanoparticles formatted in the glass host.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 458, 15 February 2017, Pages 80-85
Journal: Journal of Non-Crystalline Solids - Volume 458, 15 February 2017, Pages 80-85
نویسندگان
Zhuang Guo, Song Ye, Tianhua Liu, Song Li, Deping Wang,