Optical Absorption Coefficient on-center donor impurity in a spherical core/shell quantum dots
The polaronic effect on the linear, third-order nonlinear and total optical absorption coefficients have been calculated in the case of GaAs/AlAs core/shell quantum dot, with the impurity is positioned at the central radial position of the GaAs shell. The calculations are realized in the framework o...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2020-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2020/26/matecconf_icome2019_01041.pdf |
| _version_ | 1818356615588347904 |
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| author | M'zerd Safae El Haouari M. Feddi E. Mora-Ramos M. E. Jorio A. Zorkani I. |
| author_facet | M'zerd Safae El Haouari M. Feddi E. Mora-Ramos M. E. Jorio A. Zorkani I. |
| author_sort | M'zerd Safae |
| collection | DOAJ |
| description | The polaronic effect on the linear, third-order nonlinear and total optical absorption coefficients have been calculated in the case of GaAs/AlAs core/shell quantum dot, with the impurity is positioned at the central radial position of the GaAs shell. The calculations are realized in the framework of the effective mass approximation and the numerical results are obtained by using a variational method and an infinite confining potential. The results show that the polaronic effect has a great influence on optical properties of core/ shell quantum dot, he causes a red-shift of the nonlinear optical coefficients associated to light absorption. Also, the polaronic effect is enhanced with the decreasing of quantum dot radius. |
| first_indexed | 2024-12-13T20:00:02Z |
| format | Article |
| id | doaj.art-f94b0fd1e64f4c3e827ae2484c974253 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-13T20:00:02Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-f94b0fd1e64f4c3e827ae2484c9742532022-12-21T23:33:13ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013300104110.1051/matecconf/202033001041matecconf_icome2019_01041Optical Absorption Coefficient on-center donor impurity in a spherical core/shell quantum dotsM'zerd SafaeEl Haouari M.0Feddi E.1Mora-Ramos M. E.2Jorio A.3Zorkani I.4Centre Régional des Matières de l'Éducation et de Formation (CRMEF), Tanger, Morocco.Group of Optoelectronic of Semiconductors and Nanomaterials, ENSET, Mohammed V University in RabatGroup of Optoelectronic of Semiconductors and Nanomaterials, ENSET, Mohammed V University in RabatCentro de Investigacion en Ciencias-IICBA, Universidad Autonoma del Estado de MorelosGroup: "Nanomaterials and Renewable Energies"LPS, Faculté des sciences Dhar MehrazGroup: "Nanomaterials and Renewable Energies"LPS, Faculté des sciences Dhar MehrazThe polaronic effect on the linear, third-order nonlinear and total optical absorption coefficients have been calculated in the case of GaAs/AlAs core/shell quantum dot, with the impurity is positioned at the central radial position of the GaAs shell. The calculations are realized in the framework of the effective mass approximation and the numerical results are obtained by using a variational method and an infinite confining potential. The results show that the polaronic effect has a great influence on optical properties of core/ shell quantum dot, he causes a red-shift of the nonlinear optical coefficients associated to light absorption. Also, the polaronic effect is enhanced with the decreasing of quantum dot radius.https://www.matec-conferences.org/articles/matecconf/pdf/2020/26/matecconf_icome2019_01041.pdf |
| spellingShingle | M'zerd Safae El Haouari M. Feddi E. Mora-Ramos M. E. Jorio A. Zorkani I. Optical Absorption Coefficient on-center donor impurity in a spherical core/shell quantum dots MATEC Web of Conferences |
| title | Optical Absorption Coefficient on-center donor impurity in a spherical core/shell quantum dots |
| title_full | Optical Absorption Coefficient on-center donor impurity in a spherical core/shell quantum dots |
| title_fullStr | Optical Absorption Coefficient on-center donor impurity in a spherical core/shell quantum dots |
| title_full_unstemmed | Optical Absorption Coefficient on-center donor impurity in a spherical core/shell quantum dots |
| title_short | Optical Absorption Coefficient on-center donor impurity in a spherical core/shell quantum dots |
| title_sort | optical absorption coefficient on center donor impurity in a spherical core shell quantum dots |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2020/26/matecconf_icome2019_01041.pdf |
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