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%.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Park Y,Chan CCS,Nuttall L,Puchtler TJ,Taylor RA,Kim N,Jo Y,Im Hdoi
10.1038/s41598-018-26642-8subject
Has Abstractpub_date
2018-05-25 00:00:00pages
8124issue
1issn
2045-2322pii
10.1038/s41598-018-26642-8journal_volume
8pub_type
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