Theoretical investigation of optoelectronic properties in PbS/CdS core/shell spherical quantum dots under the effect of the electric field intensity, hydrogenic impurity and geometric parameters

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dc.contributor.authorJellouli, E.
dc.contributor.authorZeiri, N.
dc.contributor.authorBaşer, Pınar
dc.contributor.authorYahyaoui, N.
dc.contributor.authorEd-Dahmouny, A.
dc.contributor.authorMurshed, Mohammad N.
dc.contributor.authorSaid, M.
dc.date.accessioned2024-10-26T18:09:55Z
dc.date.available2024-10-26T18:09:55Z
dc.date.issued2024
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractIn this paper, we theoretically investigated the combined effects of the external electric field (EF) strength and the geometric parameters on the linear, nonlinear and total dielectric functions as well as the effective dielectric function (DF) coefficients of PbS/CdS spherical core/shell quantum dots (CSQD) in the presence of the hydrogenic impurity located at the center. The subband energy eigenvalues and their corresponding wave functions are obtained by solving the time-independent Schr & ouml;dinger equation and using the variational method (VM) in the framework of the effective mass approximation (EMA). The linear, nonlinear and total DF as well as the effective DF were discussed and evaluated under the influence of EF intensity, geometric parameters, the change of the number of quantum dots (QDs) per unit volume and optical intensity I based on the compact density matrix (CDM) approach. The obtained results show that the height peaks of the linear, nonlinear and Total DF as well as the effective DF coefficients increase and their resonant peak moves towards lower energies as the EF and geometric factors increase in both cases with and without considering the hydrogenic impurity effect. Furthermore, our findings show that the impact of optical intensity and the number of QDs per unit volume does not change the resonance peaks of imaginary parts of DF and effective DF but decreases their magnitudes. As a result, we believe that numerical results will present important developments and provide great contributions in designing new optoelectronic devices related to CSQD hetero-nanostructure.
dc.description.sponsorshipDeanship of Scientific Research at King Khalid University [RGP.2/186/45]
dc.description.sponsorshipThe authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through large group Research Project under Grant Number RGP.2/186/45.
dc.identifier.doi10.1007/s42452-024-06131-6
dc.identifier.issn3004-9261
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85200496235
dc.identifier.scopusqualityN/A
dc.identifier.urihttps://doi.org/10.1007/s42452-024-06131-6
dc.identifier.urihttps://hdl.handle.net/20.500.12418/30340
dc.identifier.volume6
dc.identifier.wosWOS:001283870000001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofDiscover Applied Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectHydrogenic impurity
dc.subjectElectric field intensity
dc.subjectDielectric function coefficient
dc.subjectCompact density matrix formalism
dc.subjectEffective mass approximation
dc.subjectCore/shell quantum dots
dc.titleTheoretical investigation of optoelectronic properties in PbS/CdS core/shell spherical quantum dots under the effect of the electric field intensity, hydrogenic impurity and geometric parameters
dc.typeArticle

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