کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7938866 1513185 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Interface optical phonons and their electron-phonon interactions in ZnS/CdS multi-shell spherical quantum dots
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Interface optical phonons and their electron-phonon interactions in ZnS/CdS multi-shell spherical quantum dots
چکیده انگلیسی
The properties of interface optical phonons and their electron-phonon interactions in ZnS/CdS multi-shell spherical quantum dots are studied by adopting dielectric continuum model. The dispersion curves and electron-phonon coupling strengths for interface optical phonons in ZnS/CdS multi-shell dots are calculated and analyzed in detail. It is shown that the number of interface optical phonon branches increase with the increase of layers of multi-shell quantum dots. The number of interface optical phonons increase two branches for increasing one layer material. The dispersions of interface optical phonon with low quantum number l are weak. The electron-interface optical phonon interactions are mainly localized at hetero-interfaces. The interface optical phonons with low quantum number l have important contribution to electron-interface optical phonon interactions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Superlattices and Microstructures - Volume 116, April 2018, Pages 36-43
نویسندگان
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