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Substrate lattice relaxations, spectral distortions, and nanoparticle inclusions of ion implanted zinc oxide

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Finch_2015_JoAP_ZincOxide_FinalPubVersion.pdf (6.603Mb)
Date
07/09/2015
Author
Wang, Y.
Ma, B.
Zhang, W.
Li, D.
Zhao, Y.
Finch, A. A.
Townsend, P. D.
Funder
NERC
Grant ID
NE/H002715/1
Keywords
QC Physics
NDAS
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Abstract
Low temperature radioluminescence and thermoluminescence spectra of ZnO track numerous changes produced by copper ion implantation into the surface layer. A significant, but unexpected, feature is that the bulk crystal becomes modified by the stress generated in the surface layer. This is reflected by the energy of intrinsic band gap emission. There are also differences in the spectra and peak temperatures of the thermoluminescence components, consistent with such a structural relaxation. The copper implant layer is both absorbing and reflective, so this introduces major distortions on the radioluminescence component from the bulk region, since the bulk luminescence signals are transmitted through, or reflected from, the implant layer. The temperature dependence of the spectra includes anomalies that are typical of changes driven by phase transitions of nanoparticle inclusions. Overall, the features of bulk relaxation, spectral distortion, and detection of nanoparticle inclusions are rarely considered for ion implanted luminescence studies, but the data suggest they are almost inevitable in a wide range of implanted materials.
Citation
Wang , Y , Ma , B , Zhang , W , Li , D , Zhao , Y , Finch , A A & Townsend , P D 2015 , ' Substrate lattice relaxations, spectral distortions, and nanoparticle inclusions of ion implanted zinc oxide ' , Journal of Applied Physics , vol. 118 , no. 9 , 095703 . https://doi.org/10.1063/1.4929826
Publication
Journal of Applied Physics
Status
Peer reviewed
DOI
https://doi.org/10.1063/1.4929826
ISSN
0021-8979
Type
Journal article
Rights
© 2015 AIP Publishing LLC. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at: https://dx.doi.org/10.1063/1.4929826
Description
The authors would like to thank the support of the Fundamental Research Funds for the Central Universities of China, the National Natural Science Foundation of China (No.11205134), and Beijing Higher Education Young Elite Teacher Project (YETP0640).
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/9418

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