Position dependent effective mass effect on the quantum wells with three-parameter modified Manning potential
Date
17 June 20Metadata
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This article reports a theoretical study of the intersubband optical properties in quantum wells
with modified Manning potential considering the effects of position-dependent effective mass.
Calculations are made in the effective mass and parabolic band approximations. The electronic
spectrum, dipole matrix element for intersubband transitions, optical absorption coefficient, and
refractive index coefficient are reported. Modifying the Manning potential’s three parameters
is a useful tool to simulate single and multiple quantum wells. The solution of the eigenvalues
differential equation is implemented through the expansion technique based on orthonormal
trigonometric functions. Such a procedure is contrasted with those obtained from solving the
problem by using the finite element method. Both methods of solving the differential equations
report results with excellent agreement between them and the possibility of achieving the
desired precision in the spectrum energy and the wave functions and the calculated observable.
The results presented here are useful for studying isolated and multiple quantum wells where
interdiffusion effects are involved in the interfaces. The findings demonstrate the versatility
of the modified Manning potential since, by properly manipulating its three parameters, it
is possible to tune the spectrum of energies with potential applications in next-generation
optoelectronic devices.