Title: Room-temperature photoluminescence from ZnO/ZnMgO multiple quantum wells grown on Si(111) substrates
Authors: Gu, X
Zhu, L
Ye, Z ×
Zhang, Y
Huang, F
Qiu, M
Zeng, Yujia
Liu, F
Jaeger, W #
Issue Date: Jul-2007
Publisher: American Institute of Physics
Series Title: Applied Physics Letters vol:91 issue:2 pages:1-3
Article number: 022103
Abstract: A set of ten-period ZnO/Zn0.85Mg0.15O multiple quantum wells with well thickness varying from 2.5 to 5 nm has been grown on Si(111) substrates by pulsed laser deposition. A periodic structure with sharp interfaces was observed by cross-sectional transmission electron microscopy. The room-temperature photoluminescence resulting from the well regions exhibits a significant blueshift with respect to the ZnO single layer. The well layer thickness dependence of the emission energy from the well regions was investigated and compared with a simple theoretical model. The results suggest that the quantum confinement effects in the quantum wells can be observed up to room temperature. (C) 2007 American Institute of Physics.
ISSN: 0003-6951
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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