Impact of QW coupling on the binding energy in InGaN/GaN under the effects of the size, the impurity and the internal composition
In the present paper, the binding energy of hydrogenic shallow-donor impurity in simple and double coupled quantum wells based on unstrained wurtzite (In,Ga)N/GaN is investigated. Considering the effective-mass and dielectric mismatches between the well and its surrounding matrix, the numerical calc...
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2020-01-01
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doaj-a0b0ee860f184a408de1699c5572ba092021-08-05T13:53:07ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013300101210.1051/matecconf/202033001012matecconf_icome2019_01012Impact of QW coupling on the binding energy in InGaN/GaN under the effects of the size, the impurity and the internal compositionBelaid WalidEl Ghazi HaddouZorkani Izeddine0Jorio Anouar1FSDM, Mohammed Ben Abdellah UniversityFSDM, Mohammed Ben Abdellah UniversityIn the present paper, the binding energy of hydrogenic shallow-donor impurity in simple and double coupled quantum wells based on unstrained wurtzite (In,Ga)N/GaN is investigated. Considering the effective-mass and dielectric mismatches between the well and its surrounding matrix, the numerical calculations are performed within the framework of the parabolic band and the single band effective-mass approximations under the finite potential barrier using finite element method (FEM). According to our results, it appears that the main effect of the wells coupling is to enhance the binding energy. It is also obtained that the binding energy is strongly sensitive to the internal and external parameters and can be adjusted by the quantum well/barrier width, the impurity position and the internal Indium composition. Our results are in good agreement with the finding especially for those obtained by the variational approach.https://www.matec-conferences.org/articles/matecconf/pdf/2020/26/matecconf_icome2019_01012.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Belaid Walid El Ghazi Haddou Zorkani Izeddine Jorio Anouar |
spellingShingle |
Belaid Walid El Ghazi Haddou Zorkani Izeddine Jorio Anouar Impact of QW coupling on the binding energy in InGaN/GaN under the effects of the size, the impurity and the internal composition MATEC Web of Conferences |
author_facet |
Belaid Walid El Ghazi Haddou Zorkani Izeddine Jorio Anouar |
author_sort |
Belaid Walid |
title |
Impact of QW coupling on the binding energy in InGaN/GaN under the effects of the size, the impurity and the internal composition |
title_short |
Impact of QW coupling on the binding energy in InGaN/GaN under the effects of the size, the impurity and the internal composition |
title_full |
Impact of QW coupling on the binding energy in InGaN/GaN under the effects of the size, the impurity and the internal composition |
title_fullStr |
Impact of QW coupling on the binding energy in InGaN/GaN under the effects of the size, the impurity and the internal composition |
title_full_unstemmed |
Impact of QW coupling on the binding energy in InGaN/GaN under the effects of the size, the impurity and the internal composition |
title_sort |
impact of qw coupling on the binding energy in ingan/gan under the effects of the size, the impurity and the internal composition |
publisher |
EDP Sciences |
series |
MATEC Web of Conferences |
issn |
2261-236X |
publishDate |
2020-01-01 |
description |
In the present paper, the binding energy of hydrogenic shallow-donor impurity in simple and double coupled quantum wells based on unstrained wurtzite (In,Ga)N/GaN is investigated. Considering the effective-mass and dielectric mismatches between the well and its surrounding matrix, the numerical calculations are performed within the framework of the parabolic band and the single band effective-mass approximations under the finite potential barrier using finite element method (FEM). According to our results, it appears that the main effect of the wells coupling is to enhance the binding energy. It is also obtained that the binding energy is strongly sensitive to the internal and external parameters and can be adjusted by the quantum well/barrier width, the impurity position and the internal Indium composition. Our results are in good agreement with the finding especially for those obtained by the variational approach. |
url |
https://www.matec-conferences.org/articles/matecconf/pdf/2020/26/matecconf_icome2019_01012.pdf |
work_keys_str_mv |
AT belaidwalid impactofqwcouplingonthebindingenergyininganganundertheeffectsofthesizetheimpurityandtheinternalcomposition AT elghazihaddou impactofqwcouplingonthebindingenergyininganganundertheeffectsofthesizetheimpurityandtheinternalcomposition AT zorkaniizeddine impactofqwcouplingonthebindingenergyininganganundertheeffectsofthesizetheimpurityandtheinternalcomposition AT jorioanouar impactofqwcouplingonthebindingenergyininganganundertheeffectsofthesizetheimpurityandtheinternalcomposition |
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1721220402582126592 |