Sala, E.M. orcid.org/0000-0001-8116-8830, Na, Y.I., Godsland, M. et al. (2 more authors) (2020) InAs/InP quantum dots in etched pits by droplet epitaxy in metalorganic vapor phase epitaxy. physica status solidi (RRL) – Rapid Research Letters, 14 (8). 2000173. ISSN 1862-6254
Abstract
The growth of InAs quantum dots (QDs) on InP(100) via droplet epitaxy in a metalorganic vapor phase epitaxy (MOVPE) reactor is studied. Formation of indium droplets is investigated with varying substrate temperature, and spontaneous formation of nanoholes is observed for the first time under MOVPE conditions. Indium droplets are crystallized into QDs under arsenic flow at different temperatures. For temperatures greater than 500 °C, a local etching takes place in the QD vicinity, showing an unexpected morphology which is found to be strongly dependent on the crystallization conditions. Such QDs are structurally and optically investigated and emission from single QDs in the telecom C-band is detected via microphotoluminescence at low temperature.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is an author-produced version of a paper subsequently published in physica status solidi (RRL) – Rapid Research Letters. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | atomic force microscopy; droplet epitaxy; III-V quantum dots; metalorganic vapor phase epitaxy; photoluminescence |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/R03480X/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/M508275/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/R029253/1 Engineering and Physical Sciences Research Council EP/N00762X/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 21 Mar 2023 15:02 |
Last Modified: | 22 Mar 2023 09:49 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1002/pssr.202000173 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:197494 |