سال انتشار: ۱۳۹۰

محل انتشار: اولین همایش ملی نانومواد و نانو تکنولوژی

تعداد صفحات: ۷

نویسنده(ها):

Arash Phirouznia – Department of Physics, Azarbaijan University of Tarbiat Moallem, 53714-161, Tabriz
Nadereh Akbari – Department of Laser and Optical Engineering University of Bonab, 5551761167,Bonab
Siavash Lotfi – Department of Laser and Optical Engineering University of Bonab, 5551761167,Bonab

چکیده:

Dielectric function of graphene based quantum dot under uniaxial pressure have been studied using the density functional theory (DFT) with local-density approximated(LDA) exchange-correlation functionals. The frequency dependent dielectric function has been obtained and the linear optical properties have been studied. It has been shown that stress results in blue and red shifts depending on the direction of the polarization and value of the stress