Akankan, O.2024-06-122024-06-1220130749-6036https://doi.org/10.1016/j.spmi.2012.11.014https://hdl.handle.net/20.500.14551/23474In this work, the effects of spatial electric field and ratios of dot edge lengths (L-z/L) on the binding energy and polarization of a donor impurity in TQD are presented. Calculations are performed within the effective-mass approximation using the variational procedure and considering an infinite confining potential on all surfaces of the system. The binding energy and polarization are calculated as a function of (L-z/L) ratio. It is found that binding energy and polarization of a donor impurity in TQD depend strongly on the L-z/L ratio, applied spatial electric field strength and impurity position. (c) 2012 Elsevier Ltd. All rights reserved.en10.1016/j.spmi.2012.11.014info:eu-repo/semantics/closedAccessQuantum DotDonor ImpuritySpatial Electric FieldPolarizationBinding EnergyHydrogenic ImpurityWell-WiresMagnetic-FieldParabolic ConfinementSelf-PolarizationHydrostatic-PressureShallow-DonorStatesPolarizabilityTemperatureArticle554552Q2WOS:0003153162000062-s2.0-84872136066Q2