• M Balakumari
• A Milton Franklin Benial
• P Elangovan

Using a variational method within the frame work of effective mass approximation ,the binding energy of shallow hydrogenic impurities in parabolic CdS/CdZnS quantum dots is calculated as a function of dot radius in the influence of electric field. An infinite and finite confining potential well with depth is determined by the discontinuity of the band gap in the quantum dot and the cladding. The results show that the impurity binding energy (i) increases as the dot radius decreases, (ii) decreases in an electric field – this decrease is more prominent for wider dots whereas for narrow dots the electric field seems to be unimportant. These results are compared with the existing literatures.

quantum dot, binding energy, electric field, variational method

"Effect of electric Field on the electronic states of parabolic CdS/CdZnS quantum dots", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 5, page no.770-775, May-2018, Available :http://www.jetir.org/papers/JETIR1805316.pdf

"Effect of electric Field on the electronic states of parabolic CdS/CdZnS quantum dots", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 5, page no. pp770-775, May-2018, Available at : http://www.jetir.org/papers/JETIR1805316.pdf