The effect of Furnace Annealing (FA) and Rapid Thermal annealing (RTA) on the structural and optical properties of GaAs1 − xBix/GaAs single quantum wells grown on (001) and (311)B substrates by molecular beam epitaxy was investigated. The structural properties were investigated by high-resolution x-ray diffraction (HR-XRD) and Transmission Electron Microscopy. The Bi concentration profiles were determined by simulating the HR-XRD 2θ−ω scans using dynamical scattering theory to estimate the Bi content, lattice coherence, and quality of the interfaces. The Bi composition was found to be similar for both samples grown on (001) and (311)B GaAs substrates. However, the simulations indicate that the Bi composition is not only limited in the GaAsBi quantum well (QW) layer but also extends out of the GaAsBi QW toward the GaAs barrier. Photoluminescence (PL) measurements were performed as a function of temperature and laser power for samples with a nominal Bi composition of 3%. PL spectra showed that (001) and (311)B samples have different peak energies at 1.23 eV and 1.26 eV, respectively, at 10 K. After RTA at 300 °C for 2 min, the PL intensity of (311)B and (001) samples was enhanced by factors of ∼2.5 and 1.75, respectively. However, for the (001) and (311)B FA samples, an enhancement of the PL intensity by a factor of only 1.5 times could be achieved. The enhancement of PL intensity in annealed samples was interpreted in terms of PL activation energies, with a reduction in the alloy disorder and an increase in the Bi cluster.
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31 March 2020
Research Article|
March 25 2020
Effect of thermal annealing on the optical and structural properties of (311)B and (001) GaAsBi/GaAs single quantum wells grown by MBE Available to Purchase
Special Collection:
Defects in Semiconductors 2020
Haifa Alghamdi
;
Haifa Alghamdi
a)
1
School of Physics and Astronomy, University of Nottingham
, Nottingham NG7 2RD, United Kingdom
2
Physics Department, Faculty of Sciences—AL Faisaliah, University of Jeddah, Ministry of Education Kingdom of Saudi Arabia
, Jeddah 21959, Saudi Arabia
a)Author to whom correspondence should be addressed: [email protected]
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Vanessa Orsi Gordo;
Vanessa Orsi Gordo
3
Departamento de Física, Universidade Federal de São Carlos (UFSCar)
13565-905, São Carlos, SP, Brazil
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Martin Schmidbauer;
Martin Schmidbauer
4
Leibniz-Institut für Kristallzüchtung
, Max-Born-Straße 2, 12489 Berlin, Germany
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Jorlandio F. Felix
;
Jorlandio F. Felix
5
Instituto de Física, Núcleo de Física Aplicada, Universidade de Brasília
, Brasília DF 70910-900, Brazil
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Sultan Alhassan;
Sultan Alhassan
1
School of Physics and Astronomy, University of Nottingham
, Nottingham NG7 2RD, United Kingdom
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Amra Alhassni;
Amra Alhassni
1
School of Physics and Astronomy, University of Nottingham
, Nottingham NG7 2RD, United Kingdom
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Gabriela Augusta Prando;
Gabriela Augusta Prando
3
Departamento de Física, Universidade Federal de São Carlos (UFSCar)
13565-905, São Carlos, SP, Brazil
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Horácio Coelho-Júnior
;
Horácio Coelho-Júnior
6
Centro Brasileiro de Pesquisas Físicas
, Rua Dr. Xavier Sigaud 150, Urca, 22290-180 Rio de Janeiro, RJ, Brazil
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Mustafa Gunes;
Mustafa Gunes
7
Department of Materials Engineering, Engineering Faculty, Adana Alparslan Turkes Science and Technology University
, 01250 Adana, Turkey
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Helder Vinicius Avanço Galeti
;
Helder Vinicius Avanço Galeti
8
Departamento de Engenharia Elétrica, Universidade Federal de São Carlos (UFSCar)
13565-905, São Carlos, SP, Brazil
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Yara Galvão Gobato;
Yara Galvão Gobato
3
Departamento de Física, Universidade Federal de São Carlos (UFSCar)
13565-905, São Carlos, SP, Brazil
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Mohamed Henini
Mohamed Henini
1
School of Physics and Astronomy, University of Nottingham
, Nottingham NG7 2RD, United Kingdom
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Haifa Alghamdi
1,2,a)
Vanessa Orsi Gordo
3
Martin Schmidbauer
4
Jorlandio F. Felix
5
Sultan Alhassan
1
Amra Alhassni
1
Gabriela Augusta Prando
3
Horácio Coelho-Júnior
6
Mustafa Gunes
7
Helder Vinicius Avanço Galeti
8
Yara Galvão Gobato
3
Mohamed Henini
1
1
School of Physics and Astronomy, University of Nottingham
, Nottingham NG7 2RD, United Kingdom
2
Physics Department, Faculty of Sciences—AL Faisaliah, University of Jeddah, Ministry of Education Kingdom of Saudi Arabia
, Jeddah 21959, Saudi Arabia
3
Departamento de Física, Universidade Federal de São Carlos (UFSCar)
13565-905, São Carlos, SP, Brazil
4
Leibniz-Institut für Kristallzüchtung
, Max-Born-Straße 2, 12489 Berlin, Germany
5
Instituto de Física, Núcleo de Física Aplicada, Universidade de Brasília
, Brasília DF 70910-900, Brazil
6
Centro Brasileiro de Pesquisas Físicas
, Rua Dr. Xavier Sigaud 150, Urca, 22290-180 Rio de Janeiro, RJ, Brazil
7
Department of Materials Engineering, Engineering Faculty, Adana Alparslan Turkes Science and Technology University
, 01250 Adana, Turkey
8
Departamento de Engenharia Elétrica, Universidade Federal de São Carlos (UFSCar)
13565-905, São Carlos, SP, Brazil
a)Author to whom correspondence should be addressed: [email protected]
Note: This paper is part of the Special Topic on Defects in Semiconductors 2020.
J. Appl. Phys. 127, 125704 (2020)
Article history
Received:
November 28 2019
Accepted:
March 07 2020
Citation
Haifa Alghamdi, Vanessa Orsi Gordo, Martin Schmidbauer, Jorlandio F. Felix, Sultan Alhassan, Amra Alhassni, Gabriela Augusta Prando, Horácio Coelho-Júnior, Mustafa Gunes, Helder Vinicius Avanço Galeti, Yara Galvão Gobato, Mohamed Henini; Effect of thermal annealing on the optical and structural properties of (311)B and (001) GaAsBi/GaAs single quantum wells grown by MBE. J. Appl. Phys. 31 March 2020; 127 (12): 125704. https://doi.org/10.1063/1.5140447
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