Quantum Dots: Fundamentals and Applications

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A:Physics".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 1539

Special Issue Editor


E-Mail Website
Guest Editor
Grupo de Materia Condensada-UdeA, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia (UdeA), Calle 70 No. 52-21, Medell AA 1226, Colombia
Interests: low dimensional systems; optoelectronic properties; excitons; impurities; nonlinear optical properties

Special Issue Information

Dear Colleagues,

In recent decades, interest in the study of low-dimensional semiconductor heterostructures has increased. These materials are characterized by having a variety of useful properties in the fields of nanoelectronics, optoelectronics, photoelectronics, etc. Among the structures of great importance, both at the theoretical and experimental research levels, are quantum dots (QDs), in which the charge carriers are confined in the three dimensions of nanometric order, meaning that they have discrete energy levels. The advantage QDs is the possibility of modifying their electronic and optical properties by altering their geometry via the application of external fields, hydrostatic pressure, temperature, etc. Based on the above, the wavelength of the light emitted by a quantum dot can be modified, giving rise to applications such as transistors, solar cells, sensors, light-emitting diodes, medical diagnostic imaging, etc. The materials most used for the manufacture of QDs are gallium arsenide (GaAs), cadmium selenide (CdSe), cadmium sulfide (CdS) and zinc telluride (ZnTe), among other similar materials.

Dr. Carlos Duque
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2100 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • quantum dots
  • GaAs
  • CdSe
  • CdS
  • ZnTe
  • nanoelectronics
  • optoelectronics
  • photoelectronics

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

11 pages, 1681 KiB  
Article
Stark Effect for Donors in Rolled-Up Quantum Well
by Luis Francisco Garcia Russi, Ilia D. Mikhailov, Ruthber Antonio Escorcia Caballero, Jose Sierra Ortega and Gene Elizabeth Escorcia Salas
Micromachines 2023, 14(7), 1290; https://doi.org/10.3390/mi14071290 - 24 Jun 2023
Viewed by 1233
Abstract
We calculate energies of shallow donors confined in a rolled-up quantum well in the presence of the electric field by solving numerically the Schrödinger equation in natural curvilinear coordinates. It is found that the curves of density of states (DOSs) are very sensitive [...] Read more.
We calculate energies of shallow donors confined in a rolled-up quantum well in the presence of the electric field by solving numerically the Schrödinger equation in natural curvilinear coordinates. It is found that the curves of density of states (DOSs) are very sensitive to the variation of the donor position, the geometry of the spiral and the applied electric field value. Novel results for dependencies of donor’s dipole moment and its polarizability on the electric field strength and its orientation, for different donor positions are presented. Additionally, we found that the anisotropic Stark effect of the first order provides in this structure a dependency of the polarizability on the external electric field in a spike-like shape, giving rise to a sharp variation of the dipole moment. Full article
(This article belongs to the Special Issue Quantum Dots: Fundamentals and Applications)
Show Figures

Figure 1

Back to TopTop