Electronic structure calculation of the GaAs AlAs quantum dot superlattices
Joint Authors
Kanuni, F.
Brezini, A.
Sekkel, N.
Saadani, A.
Chalabi, D.
Mustafa, A.
Source
Journal of New Technology and Materials / Larbi Ben M'hidi Oum el-Bouaghi University.
Publisher
Larbi Ben M'hidi Oum el-Bouaghi University
Publication Date
2011-12-31
Country of Publication
Algeria
No. of Pages
4
Main Subjects
Topics
English Abstract
Theoretical investigation of the electronic structure of GaAs / AlAs quantum dots superlattices is presented.
We use the envelope function approximation in connection with Kronig-Penney model to calculate the conduction band structure of the cubic quantum dot crystal.
.
We show that, when quantum dots are separated by a finite barrier and positioned very close to each other so that there is a significant wave function overlap, the discrete energy levels split into three-dimensional minibands.
We can control the electronic structure of this artificial quantum dot crystal by changing theirs technological parameters, the size of quantum dots, interdot distances, barrier height, and regimentation.
This type of structure provides electronic and optical properties very important that are different to that of bulk and quantum well superlattices.
The proposed engineering of three-dimensional minibands in quantum dot crystals allows one to fine-tune electronic and optical properties of such nanostructures.
Data Type
Conference Papers
Record ID
BIM-367328
American Psychological Association (APA)
Kanuni, F.& Brezini, A.& Sekkel, N.& Saadani, A.& Chalabi, D.& Mustafa, A.. 2011-12-31. Electronic structure calculation of the GaAs AlAs quantum dot superlattices. International Conference on New Materials and Active Devices (1st : 2011 : Umm al-Bawaqi, Algeria). . Vol. 1, no. 00 (Dec. 2011), pp.55-58.Oum el-Bouaghi Algeria : Larbi Ben M'hidi Oum el-Bouaghi University.
https://search.emarefa.net/detail/BIM-367328
Modern Language Association (MLA)
Kanuni, F.…[et al.]. Electronic structure calculation of the GaAs AlAs quantum dot superlattices. . Oum el-Bouaghi Algeria : Larbi Ben M'hidi Oum el-Bouaghi University. 2011-12-31.
https://search.emarefa.net/detail/BIM-367328
American Medical Association (AMA)
Kanuni, F.& Brezini, A.& Sekkel, N.& Saadani, A.& Chalabi, D.& Mustafa, A.. Electronic structure calculation of the GaAs AlAs quantum dot superlattices. . International Conference on New Materials and Active Devices (1st : 2011 : Umm al-Bawaqi, Algeria).
https://search.emarefa.net/detail/BIM-367328