کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1491548 992354 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Photoluminescence and XPS analyses of Mn2+ doped ZnS nanocrystals embedded in sol–gel derived hybrid coatings
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Photoluminescence and XPS analyses of Mn2+ doped ZnS nanocrystals embedded in sol–gel derived hybrid coatings
چکیده انگلیسی

Photoluminescence and X-ray photoelectron spectroscopy studies of Mn2+ doped ZnS nanocrystals in inorganic–organic hybrid coatings prepared by a sol–gel process are presented. A 25-fold enhancement of photoluminescence was observed after UV irradiation for 6 h in an ambient atmosphere. X-ray photoelectron spectroscopy results indicate a chemical shift of binding energy from ZnS to ZnSO4 after UV irradiation. X-ray diffraction results show a decrease of ZnS nanocrystal size during UV irradiation. The cause of these phenomena was discussed based on a photochemical reaction on ZnS nanocrystal surface.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 43, Issue 3, 4 March 2008, Pages 583–589
نویسندگان
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