BROWSE

Related Researcher

Author's Photo

Park, Youngsin
Center for Superfunctional Materials
Research Interests

ITEM VIEW & DOWNLOAD

Reduced Stark shift in three-dimensionally confined GaN/AlGaN asymmetric multiquantum disks

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Reduced Stark shift in three-dimensionally confined GaN/AlGaN asymmetric multiquantum disks
Author
Park, Young S.Chan, Christopher C. S.Reid, Benjamin P. L.Holmes, Mark J.Coles, David M.Alexander-Webber, Jack A.Nicholas, Robin J.Taylor, Robert A.Lee, Seung-WoongYang, WoochulIm, Hyunsik
Issue Date
2015-04
Publisher
OPTICAL SOC AMER
Citation
OPTICAL MATERIALS EXPRESS, v.5, no.4, pp.849 - 857
Abstract
The optical transitions of the three-dimensionally confined GaN/AlGaN asymmetric multi quantum disks were characterized by micro photoluminescence and time-resolved photoluminescence. Several fine emission lines, originating from the wide and narrow quantum disks, were observed around 3.7 eV from a single nanocolumn dispersed on a patterned SiO2 substrate. The photoluminescence from the wide quantum disk shifts a little with increasing excitation power, while that from the narrow quantum disk does not shift. This effect can be explained by carrier tunneling for the 3-dimensionally confined quantum disks. Kelvin probe force microscopy results confirm that the GaN/AlGaN multiquantum disks are surrounded by a GaN shell, which has a higher potential than core GaN. (C) 2015 Optical Society of Americ
URI
https://scholarworks.unist.ac.kr/handle/201301/17443
URL
https://www.osapublishing.org/ome/abstract.cfm?uri=ome-5-4-849
DOI
10.1364/OME.5.000849
ISSN
2159-3930
Appears in Collections:
CHM_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU