Quantum size and magnesium composition effects on the optical absorption in the Mg Zn(1−)O/ZnO quantum well

摘要: Abstract In this work, we investigated the effects of polarizations and structural parameters on optical absorption coefficient (OAC) intersubband transition between three lowest energy levels E 1 , 2 3 in MgxZn(1−x)O/ZnO single quantum well. The electron each level its respective wavefunction are calculated by numerical solution Schrodinger Poisson equations self-consistently using an effective mass approximation. Our findings exhibit that transitions, Δ 12 13 can be altered controlled varying well width magnesium composition, x. Moreover, our results suggest coefficients, α modulated principally adjusting width, especially ( ), which presents a red shift raising thickness. Contrary to coefficient, present either or blue increasing width. process responsible for behavior, suitable optoelectronic device applications, is discussed here detail.