کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1546685 1512906 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Yellow-orange light emission from Mn2+-doped ZnS nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Yellow-orange light emission from Mn2+-doped ZnS nanoparticles
چکیده انگلیسی

ZnS nanoparticles with Mn2+ doping (1–2.5%) have been prepared through a simple soft chemical route, namely the chemical precipitation method. The nanostructures of the prepared undoped ZnS and Mn2+-doped ZnS:Mn nanoparticles have been analyzed using X-ray diffraction (XRD), Scanning electron microscope (SEM), transmission electron microscope (TEM) and UV–vis spectrophotometer. The size of the particles is found to be in 2–3 nm range. Room-temperature photoluminescence (PL) spectrum of the undoped sample only exhibits a blue-light emission peaked at ∼365 nm under UV excitation. However, from the Mn2+-doped samples, a yellow-orange emission from the Mn2+4T1–6A1 transition is observed along with the blue emission. The prepared 2.5% Mn2+-doped sample shows efficient emission of yellow-orange light with the peak emission at ∼580 nm with the blue emission suppressed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 40, Issue 10, September 2008, Pages 3115–3120
نویسندگان
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