کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9789527 1512911 2005 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of substrate temperature on the growth and luminescence properties of ZnO nanostructures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Effect of substrate temperature on the growth and luminescence properties of ZnO nanostructures
چکیده انگلیسی
ZnO nanowires, nanorods and nanoribbons have been prepared by heating a mixture of ZnO/graphite powders using the thermal evaporation and vapor transport on Si(1 0 0) substrates without any catalyst. The nanostructures are grown as a function of substrate temperature ranging from 900 to 1300 K. These nanostructures are of the size 100-300 nm in diameter or width and several tens of micrometers in length. We studied the influence of the substrate temperature on the luminescent properties of these nanostructures. We observed a strong relationship between the substrate temperature and the green emission band in ZnO, i.e., the photoluminescence study revealed that the green emission peak of the ZnO nanostructures is suppressed relative to the band edge emission when the substrate temperature is decreased from 1300 to 900 K.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 30, Issues 1–2, December 2005, Pages 51-54
نویسندگان
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