1.3 mum emission from InAs/GaAs quantum dots

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F06%3A00018456" target="_blank" >RIV/00216224:14310/06:00018456 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

1.3 mum emission from InAs/GaAs quantum dots

Original language description

We report here the results of our photoluminescence study of a series of single quantum dot layer structures containing InxGa1?xAs strain reducing layers with different In concentration (from 0 % to 29 %), prepared by low pressure metal organic vapour phase epitaxy. These structures display a strong red shift of photoluminescence maxima from 1.25 mum to 1.45 mum at 300 K with increased In content in the ternary layer. The origin of the observed transitions has been explained using magnetophotoluminescence measurements and photoluminescence measurements for different pumping intensities at low temperature. Optical transition energies were calculated using a simple single-band effective mass model with energydependent effective mass. Comparing the calculated and measured energies, we can determine the thickness of the wetting layer and the sizes of the dots.

Czech name

Emise na 1.3 mikrometru z InAs/GaAs kvantových teček

Czech description

We report here the results of our photoluminescence study of a series of single quantum dot layer structures containing InxGa1?xAs strain reducing layers with different In concentration (from 0 % to 29 %), prepared by low pressure metal organic vapour phase epitaxy. These structures display a strong red shift of photoluminescence maxima from 1.25 mum to 1.45 mum at 300 K with increased In content in the ternary layer. The origin of the observed transitions has been explained using magnetophotoluminescence measurements and photoluminescence measurements for different pumping intensities at low temperature. Optical transition energies were calculated using a simple single-band effective mass model with energydependent effective mass. Comparing the calculated and measured energies, we can determine the thickness of the wetting layer and the sizes of the dots.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

physica status solidi (c)

ISSN

1610-1634

e-ISSN

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Volume of the periodical

3

Issue of the periodical within the volume

11

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

4

Pages from-to

3811

UT code for WoS article

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EID of the result in the Scopus database

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