Photoluminescence from GaAs nanostructures

International Journal of Physical Sciences

Alemu Gurmessa¹ 

关键词: Photoluminescence(PL) intensity;    GaAs quantum dots;    nanostructures;    quantum confinement;    thermal quenching energy.;   

DOI  :  10.5897/IJPS2014.4245

学科分类：物理（综合）

来源: Academic Journals

【 摘 要 】

The confinement properties of semiconductor nanostructures have promising potential in technological application. The main objective of this study is to describe the dependence of Photoluminescence(PL) intensity on different parameters like temperature, excitation wavelength, time and photon energy of GaAs quantum dots (QDs). The model equations are numerically analyzed and simulated with matlab and FORTRAN codes. The experimental fitted values and physical properties of materials are used as data source for our simulation. The result shows that at low temperature the peak is quite sharp, as temperature increases the PL intensity decreases and get quenched at particular thermal energy.

【 授权许可】

CC BY