Title :
Intersubband absorption in core shell quantum dot
Author :
Guin, Shilpi ; Das, Nikhil R.
Author_Institution :
Inst. of Radio Phys. & Electron., Univ. of Calcutta, Kolkata, India
Abstract :
In this paper, the electron energy and intersubband absorption coefficient are calculated for a spherical core shell quantum dot structure. Considering the variation of dot size over a layer and scattering mechanisms, Gaussian distribution in density of state is used in the analysis. Both the transition energy and the peak absorption coefficient decrease with core radius.
Keywords :
Gaussian distribution; II-VI semiconductors; absorption coefficients; cadmium compounds; eigenvalues and eigenfunctions; electronic density of states; semiconductor quantum dots; wide band gap semiconductors; zinc compounds; CdSe-ZnS; Gaussian distribution; density-of-state; electron energy; intersubband absorption coefficient; scattering mechanism; spherical core-shell quantum dot structure; transition energy; Absorption; Educational institutions; Energy states; Equations; Mathematical model; Quantum dots; Resonant frequency; absorbance; core shell quantum dot; eigenvalue; intersubband; nanostructure; spherical Bessel function;
Conference_Titel :
Microwave and Photonics (ICMAP), 2013 International Conference on
Conference_Location :
Dhanbad
Print_ISBN :
978-1-4799-2176-8
DOI :
10.1109/ICMAP.2013.6733544
