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Journal article

Linearly polarized photoluminescence of InGaN quantum disks embedded in GaN nanorods

Abstract:
We have investigated the emission from InGaN/GaN quantum disks grown on the tip of GaN nanorods. The emission at 3.21 eV from the InGaN quantum disk doesn't show a Stark shift, and it is linearly polarized when excited perpendicular to the growth direction. The degree of linear polarization is about 39.3% due to the anisotropy of the nanostructures. In order to characterize a single nanostructure, the quantum disks were dispersed on a SiO2 substrate patterned with a metal reference grid. By rotating the excitation polarization angle from parallel to perpendicular relative to the nanorods, the variation of overall PL for the 3.21 eV peak was recorded and it clearly showed the degree of linear polarization (DLP) of 51.5%.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1038/s41598-018-26642-8

Authors


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Role:
Author
ORCID:
0000-0002-1789-750X
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Condensed Matter Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Condensed Matter Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Condensed Matter Physics
Role:
Author
ORCID:
0000-0002-3215-2960
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Oxford college:
Queens College
Role:
Author
ORCID:
0000-0003-2578-9645


Publisher:
Nature Publishing Group
Journal:
Scientific Reports More from this journal
Volume:
8
Issue:
1
Pages:
8124
Publication date:
2018-05-25
Acceptance date:
2018-05-16
DOI:
EISSN:
2045-2322
ISSN:
2045-2322
Pmid:
29802300


Language:
English
Keywords:
Pubs id:
pubs:854482
UUID:
uuid:2b2ee5d5-fcfc-42ea-ba58-eba3c411da5b
Local pid:
pubs:854482
Source identifiers:
854482
Deposit date:
2018-06-13

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