Title of article :
The influence of confinements on the photon flux spectra in amorphous silicon quantum dots
Author/Authors :
ABDULRIDA, Moafak Cadim University of Baghdad - College of Education (Ibn Al-Haitham) - Department of Physics, Theoretical Nanoscience of Optoelectronic Devices Group, IRAQ , ABDUL-AMEER, Nidhal Moosa University of Baghdad - College of Education (Ibn Al-Haitham) - Department of Physics, Theoretical Nanoscience of Optoelectronic Devices Group, IRAQ , ABDUL-HAKEEM, Shatha Mohammad University of Baghdad - College of Science - Department of Physics, IRAQ
Abstract :
We have theoretically calculated the photon flux of radiative recombination in amorphous silicon quantum dots (a-SiQDs) at room temperature. These quantum dots have been ranged in their diameter 1 to 4 nm. The convolution of probability density function of deepest energy states of conduction PC(E) and valence PV (E) bands within the capture volume was adopted. The behavior of this function can be classified into four regions according to the quantum dot size. The effect of spatial and quantum confinements on the peak value of photon flux must be taken into account. We found that a blue shift is classified by the quantum confinement effect on the photon flux value, while a red shift appeared via the spatial confinement effect.
Keywords :
Nanoscience , quantum dots , photon flux , quantum confinement
Journal title :
Turkish Journal of Physics
Journal title :
Turkish Journal of Physics
