Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jcrysgro.2009.11.052
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dc.titleEvolution of resonant Raman scattering spectra of ZnO crystallites upon post-growth thermal annealing
dc.contributor.authorLiu, H.F.
dc.contributor.authorChua, S.J.
dc.contributor.authorHu, G.X.
dc.contributor.authorGong, H.
dc.date.accessioned2014-10-07T09:49:15Z
dc.date.available2014-10-07T09:49:15Z
dc.date.issued2010-02-01
dc.identifier.citationLiu, H.F., Chua, S.J., Hu, G.X., Gong, H. (2010-02-01). Evolution of resonant Raman scattering spectra of ZnO crystallites upon post-growth thermal annealing. Journal of Crystal Growth 312 (4) : 527-531. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jcrysgro.2009.11.052
dc.identifier.issn00220248
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/86314
dc.description.abstractThe authors report on observations regarding thermal annealing of ZnO submicron crystals grown by radio-frequency magnetron sputtering. The surface optical (SO) and A1(LO) phonons in the resonant Raman scattering spectra, upon sample annealing, exhibit blue- and red-shift, respectively. The blue-shift of the SO mode is strongly correlated with the intensity reduction of the A1(LO) mode, which is an indication of the weakening of the surface electric field that was built by surface and near-surface defects via forming surface states. Photoluminescence measurements reveal defects annihilation in the ZnO crystallites that led to the surface states passivation, while the off-axis X-ray diffraction mappings provide evidence that the red-shift in the A1(LO) mode originated from the anneal-induced crystal reorientations. © 2009 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.jcrysgro.2009.11.052
dc.sourceScopus
dc.subjectA1. Heterostructures
dc.subjectA3. Physical vapor deposition process
dc.subjectB1. ZnO
dc.subjectB2. Semiconductor materials
dc.typeArticle
dc.contributor.departmentMATERIALS SCIENCE AND ENGINEERING
dc.description.doi10.1016/j.jcrysgro.2009.11.052
dc.description.sourcetitleJournal of Crystal Growth
dc.description.volume312
dc.description.issue4
dc.description.page527-531
dc.description.codenJCRGA
dc.identifier.isiut000274761900009
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