کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1531148 1512006 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Theory of energy transfer between Er3+ ions and carriers confined in Si nanocrystals in SiO2 matrix
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Theory of energy transfer between Er3+ ions and carriers confined in Si nanocrystals in SiO2 matrix
چکیده انگلیسی

A theoretical model of energy transfer between Si nanocrystals and Er3+ ions in SiO2 matrix is presented. The mechanism, based on the Coulomb interaction between carriers confined in nanocrystal and f  -electrons of erbium ions, is considered to be responsible for the excitation and quenching of the 1.55 μm luminescence, and particularly for its recently discovered nanosecond dynamics. It has been shown that phonon-assisted intraband transition of a confined carrier can give rise to erbium transition into the first excited state with characteristic time being in the nanosecond range.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 146, Issues 1–3, 15 January 2008, Pages 121–125
نویسندگان
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