کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
850823 909292 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Excitonic properties of a spherical semiconductor quantum dot: The role of phonons
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Excitonic properties of a spherical semiconductor quantum dot: The role of phonons
چکیده انگلیسی

The present work investigates the exciton–LO phonon interaction in a semiconductor spherical quantum dot. Through a variation method, a fully detailed analysis of contributions is given. The exciton–LO phonon interaction is studied in two different cases: (i) with a finite confining potential surrounding the quantum dot and (ii) with a infinite confining potential. The calculation for different material such as CdSe/ZnSe and GaAs/AlxGa1−x As, shows that the interaction energy is increasing with increasing the quantum dot radius. Also it has been observed that the interaction energy for QDs with finite confining potential is higher than these with infinite confining potential, furthermore because of confinement potential variation with Al molar fraction in GaAs/AlxGa1−x As QDs a different behavior for interaction energy has been achieved at different Al molar fraction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 124, Issue 16, August 2013, Pages 2561–2564
نویسندگان
, , ,