کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1530661 1511996 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optical spectroscopy of carrier relaxation processes in Si nanocrystals
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Optical spectroscopy of carrier relaxation processes in Si nanocrystals
چکیده انگلیسی
We have investigated thermalization, trapping and recombination processes of carriers in Si nanocrystals embedded in a SiO2 matrix. The study has been performed using time-resolved optical techniques of photoluminescence and induced absorption, allowing for 17 ps and 150 fs resolution, respectively. Based on these results, the possible relaxation processes are discussed. Special attention is paid to cooperative processes circumventing the effect of phonon bottleneck theoretically expected for Si nanocrystals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volumes 159–160, 15 March 2009, Pages 190-193
نویسندگان
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