Atomic scale investigations on Cd{sub x}Zn{sub 1−x}Se quantum dots: Correlation between the composition and emission properties
- Aix-Marseille Université, IM2NP-CNRS, Case 142, 13397 Marseille Cedex 20 (France)
- University of Grenoble Alpes, F-38000 Grenoble (France)
Atom probe tomography and photoluminescence spectroscopy have been used to study Cd{sub x}Zn{sub 1−x}Se quantum dots embedded in a ZnSe layer grown on a (001) GaAs substrate. Atom probe tomography analyses show significant cadmium incorporation in the center of the dots surrounded by poor cadmium region. These measurements illustrate that the maximum cadmium concentration in the quantum dots is significantly higher than the concentration estimated by transmission electron microscopy. The composition and size of quantum dots obtained by atom probe tomography have been used to calculate the transition energies including excitonic and strain effects.
- OSTI ID:
- 22314505
- Journal Information:
- Applied Physics Letters, Vol. 105, Issue 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Magneto-optical studies of ensembles of semimagnetic self-organized Cd(Mn)Se/Zn(Mn)Se Quantum Dots
Hydrostatic pressure studies of optical transitions in the photoluminescence spectra of Zn[sub 1[minus][ital x]]Cd[sub [ital x]]Se thick epilayers and Zn[sub 1[minus][ital x]]Cd[sub [ital x]]Se/ZnSe strained layer multiple quantum wells
Hydrostatic-pressure studies of confined transitions in cubic Zn sub 1 minus x Cd sub x Se/ZnSe strained-layer quantum wells
Journal Article
·
Wed Dec 04 00:00:00 EST 2013
· AIP Conference Proceedings
·
OSTI ID:22314505
Hydrostatic pressure studies of optical transitions in the photoluminescence spectra of Zn[sub 1[minus][ital x]]Cd[sub [ital x]]Se thick epilayers and Zn[sub 1[minus][ital x]]Cd[sub [ital x]]Se/ZnSe strained layer multiple quantum wells
Conference
·
Sun Jul 10 00:00:00 EDT 1994
· AIP Conference Proceedings (American Institute of Physics); (United States)
·
OSTI ID:22314505
+5 more
Hydrostatic-pressure studies of confined transitions in cubic Zn sub 1 minus x Cd sub x Se/ZnSe strained-layer quantum wells
Journal Article
·
Wed Apr 15 00:00:00 EDT 1992
· Physical Review, B: Condensed Matter; (United States)
·
OSTI ID:22314505
+3 more