# Intersubband optical properties of three electrons confined in multishell quantum dots: comparison of two semiconducting compounds

Intersubband optical properties of three electrons confined in multishell quantum dots:... We investigated the effect of the number of wells and quantum dot radius on the dipole matrix elements and optical properties of three electrons confined in concentric multishell quantum dots, comparing two different semiconducting compound nanostructures: $$\hbox {GaAs/Ga}_{{x}}\hbox {Al}_{{(1-x)}}\hbox {As}$$ GaAs/Ga x Al ( 1 - x ) As and InGaAs/InAlAs. We used a high-accuracy interpolation-based 14-point finite difference method to solve the corresponding Schrodinger equation. The results showed that, although InGaAs/InAlAs multishell quantum dots have lower absorption peak heights than the $$\hbox {GaAs/Ga}_{{x}}\hbox {Al}_{{(1-x)}}\hbox {As}$$ GaAs/Ga x Al ( 1 - x ) As ones, the effects of the quantum dot radius and number of wells on the optical properties are more intense in the studied InGaAs/InAlAs structures. Therefore, since a wider absorption peak height range can be spanned when using the InGaAs/InAlAs system, these structures are more tunable, which could facilitate selection of desired systems by experimentalists. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Computational Electronics Springer Journals

# Intersubband optical properties of three electrons confined in multishell quantum dots: comparison of two semiconducting compounds

, Volume 17 (3) – Jun 4, 2018
8 pages

/lp/springer_journal/intersubband-optical-properties-of-three-electrons-confined-in-qJbapk02jV
Publisher
Springer US
Subject
Engineering; Mathematical and Computational Engineering; Electrical Engineering; Theoretical, Mathematical and Computational Physics; Optical and Electronic Materials; Mechanical Engineering
ISSN
1569-8025
eISSN
1572-8137
D.O.I.
10.1007/s10825-018-1187-8
Publisher site
See Article on Publisher Site

### Abstract

We investigated the effect of the number of wells and quantum dot radius on the dipole matrix elements and optical properties of three electrons confined in concentric multishell quantum dots, comparing two different semiconducting compound nanostructures: $$\hbox {GaAs/Ga}_{{x}}\hbox {Al}_{{(1-x)}}\hbox {As}$$ GaAs/Ga x Al ( 1 - x ) As and InGaAs/InAlAs. We used a high-accuracy interpolation-based 14-point finite difference method to solve the corresponding Schrodinger equation. The results showed that, although InGaAs/InAlAs multishell quantum dots have lower absorption peak heights than the $$\hbox {GaAs/Ga}_{{x}}\hbox {Al}_{{(1-x)}}\hbox {As}$$ GaAs/Ga x Al ( 1 - x ) As ones, the effects of the quantum dot radius and number of wells on the optical properties are more intense in the studied InGaAs/InAlAs structures. Therefore, since a wider absorption peak height range can be spanned when using the InGaAs/InAlAs system, these structures are more tunable, which could facilitate selection of desired systems by experimentalists.

### Journal

Journal of Computational ElectronicsSpringer Journals

Published: Jun 4, 2018

## You’re reading a free preview. Subscribe to read the entire article.

### DeepDyve is your personal research library

It’s your single place to instantly
that matters to you.

over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month ### Explore the DeepDyve Library ### Search Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly ### Organize Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place. ### Access Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals. ### Your journals are on DeepDyve Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more. All the latest content is available, no embargo periods. DeepDyve ### Freelancer DeepDyve ### Pro Price FREE$49/month
\$360/year

Save searches from
PubMed

Create lists to

Export lists, citations