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Morphology and Optical Investigations of InAs-QDGaAs Heterostructures Obtained by Ion-Beam Sputtering
Joint Authors
Chebotarev, S. N.
Pashchenko, A. S.
Irkha, V. A.
Lunina, M. L.
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-02-17
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
A new ion-beam sputtering technique for obtaining self-assembled InAs quantum dots on GaAs (001) substrates is proposed.
The current paper demonstrates that a temperature increase in a range from 450 to 550°C at ion current of 120 μA and energy of 150 eV leads to an expansion of average sizes of InAs hut-quantum dots.
According to atomic force and electron microscopy, photoluminescence, and capacity-voltage measurements it was found that an increase of ion-beam current from 60 to 120 μA at a temperature of 500°C and energy of 150 eV slightly enlarges the average sizes of quantum dots from 15 nm to 18 nm while their dispersion is about 30%.
At a current of 180 μA a surface density is 1.3·1011 cm−2, but under these conditions there is a very high dispersion of quantum dots up to 50%.
American Psychological Association (APA)
Chebotarev, S. N.& Pashchenko, A. S.& Irkha, V. A.& Lunina, M. L.. 2016. Morphology and Optical Investigations of InAs-QDGaAs Heterostructures Obtained by Ion-Beam Sputtering. Journal of Nanotechnology،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1109657
Modern Language Association (MLA)
Chebotarev, S. N.…[et al.]. Morphology and Optical Investigations of InAs-QDGaAs Heterostructures Obtained by Ion-Beam Sputtering. Journal of Nanotechnology No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1109657
American Medical Association (AMA)
Chebotarev, S. N.& Pashchenko, A. S.& Irkha, V. A.& Lunina, M. L.. Morphology and Optical Investigations of InAs-QDGaAs Heterostructures Obtained by Ion-Beam Sputtering. Journal of Nanotechnology. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1109657
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109657