کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5402564 | 1392737 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectral behavior of the emission around 3.31Â eV (A-line) from ZnO nanocrystals
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Spectral behavior of the emission around 3.31Â eV (A-line) from ZnO nanocrystals Spectral behavior of the emission around 3.31Â eV (A-line) from ZnO nanocrystals](/preview/png/5402564.png)
چکیده انگلیسی
The emission at around 3.31Â eV (A-line) from three types of ZnO nanocrystals with different particle sizes (10-1000Â nm) was studied. The photoluminescence (PL) measurements were performed under different excitation densities and at different temperatures. The A-line emission exhibited a strong dependence on temperature and excitation power density. With increasing excitation density and temperature overlapping of the closely spaced first longitudinal optical (LO) phonon replica of free excitons by the A-line emission was observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 130, Issue 5, May 2010, Pages 767-770
Journal: Journal of Luminescence - Volume 130, Issue 5, May 2010, Pages 767-770
نویسندگان
S.S. Kurbanov, T.W. Kang,