کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1794477 | 1023699 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Behavior of ultraviolet emission from nanocrystalline embedded ZnO film synthesized by solution-based route
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
ZnO thin films synthesized using a sol-gel method were found to have a high density of nanocrystals embedded in an amorphous matrix despite the process performed at a low temperature. Photoluminescence (PL) of nanocrystal-embedded as-grown ZnO films consisted of ultraviolet emissions related to a quantum confinement effect in the nanocrystals, the amorphous phase in the matrix, and bulky ZnO film. In contrast, thermal annealing resulted in a blue-shifted emission at 3.390Â eV from the fine nanocrystals and an intense emission at 3.339Â eV from the coarse nanocrystals. The quantum confinement effect in nanocrystals was confirmed by the estimated blue-shift according to the nanocrystal size and a comparison of the PL peak positions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 311, Issue 6, 1 March 2009, Pages 1539-1544
Journal: Journal of Crystal Growth - Volume 311, Issue 6, 1 March 2009, Pages 1539-1544
نویسندگان
S.K. Mohanta, S.H. Lee, B.H. Kong, H.K. Cho,