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Laser and electric field dependence on donor impurity in a quantum wire

A. JOHN PETER1,* , M. SANTHI2

Affiliation

  1. Govt. Arts College, Melur-625 106. Madurai, India
  2. Sri Meenakshi Govt. Arts College, Madurai -625 002. India

Abstract

Calculation of the binding energy of an axial donor hydrogenic impurity, dressing by light in the cylindrical quantum wires made up of different materials placed in presence of electric field is reported. A rapid decrease of the binding energy for different values of the wire radius with increasing high frequency laser field intensity in the presence of electric field is predicted. Si wire is found to have the maximum efficiency and less binding energy when compared to other materials like GaAs and CdTe. This technology may be implemented in place of conventional solar panel, Si quantum wires can be embedded on a nonconducting material. The binding energies are found to increase with decrease in the wire radius upto the Bohr radius of the material , and decrease with increase in the value of the laser field amplitude λ in all cases. A rapid decrease in binding energy is observed when the electric field is applied. This is an elegant model that can be used in place of conventional solar panel so as to increase the efficiency of the solar panel..

Keywords

Quantum wires, Electronic transport in quantum scale materials.

Submitted at: Feb. 26, 2009
Accepted at: May 28, 2009

Citation

A. JOHN PETER, M. SANTHI, Laser and electric field dependence on donor impurity in a quantum wire, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 5, pp. 565-570 (2009)