Photoluminescence intensity enhancement in self-assembled In As quantum dots grown on (311)B and (100) GaAs substrates and coated with gold nanoparticles

A. Khatab; O. M. Lemine; A. Alkaoud; A. Falamas; M. Aziz; Y. Galvao Gobato; M. Henini

doi:10.1016/j.physe.2013.06.027

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Photoluminescence intensity enhancement in self-assembled In As quantum dots grown on (311)B and (100) GaAs substrates and coated with gold nanoparticles

Journal article

Peer reviewed

Photoluminescence intensity enhancement in self-assembled In As quantum dots grown on (311)B and (100) GaAs substrates and coated with gold nanoparticles

A. Khatab, O. M. Lemine, A. Alkaoud, A. Falamas, M. Aziz, Y. Galvao Gobato and M. Henini

Physica. E, Low-dimensional systems & nanostructures, Vol.54, pp.233-236

01/12/2013

DOI: https://doi.org/10.1016/j.physe.2013.06.027

Abstract

Nanoscience & Nanotechnology

Physical Sciences

Physics

Physics, Condensed Matter

Science & Technology

Science & Technology - Other Topics

Photoluminescence intensity enhancement has been observed for self-assembled InAs quantum dots (QDs) coated with gold nanoparticles and associated to surface plasmon (SP) coupling effects. This effect was investigated for different temperatures, excitation energy, laser power, GaAs cap layer thickness, and QD morphology. It was found that the SP-QD coupling efficiency increases with the increase of the temperature. It was also observed that this effect is enhanced for QDs grown on (3 1 1)B GaAs oriented substrates. (C) 2013 Elsevier B.V. All rights reserved.

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Title: Photoluminescence intensity enhancement in self-assembled In As quantum dots grown on (311)B and (100) GaAs substrates and coated with gold nanoparticles
Creators - without role: A. Khatab - Cairo University
O. M. Lemine - Imam Mohammad ibn Saud Islamic University
A. Alkaoud - Imam Mohammad ibn Saud Islamic University
A. Falamas - University of Nottingham
M. Aziz - University of Nottingham
Y. Galvao Gobato - Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil
M. Henini - University of Nottingham
Publication Details: Physica. E, Low-dimensional systems & nanostructures, Vol.54, pp.233-236
Publisher: Elsevier
Number of pages: 4
Grant note: Egyptian Higher Education Ministry; Ministry of Higher Education & Scientific Research (MHESR) Cairo University 11-NAN1793-08 / King Abdul-Aziz City for Sciences and Technology (KACST)
Identifiers: 9916683608331
Academic Unit: Imam Mohammad Ibn Saud Islamic University (IMSIU)
Language: English
Resource Type: Journal article