Article: Residual strains and optical properties of ZnO thin epilayers grown on r-sapphire planes

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TitleResidual strains and optical properties of ZnO thin epilayers grown on r-sapphire planes
AuthorsZheng, CC1
Xu, SJ1
Ning, JQ1
Bao, W1
Wang, JF1
Gao, J1
Liu, JM2
Zhu, JH1 2
Liu, XL2
KeywordsCompressive strain
Epilayers grown
Low temperature photoluminescence
Peak position
R-sapphire
Issue Date2012
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/journals/sst
CitationSemiconductor Science and Technology, 2012, v. 27 n. 3, article no. 035008 [How to Cite?]
DOI: http://dx.doi.org/10.1088/0268-1242/27/3/035008
AbstractZnO epilayers with a thickness of ∼360 nm were directly grown on r-sapphire planes at different temperatures (550, 500, 450 °C) with metal-organic chemical vapor deposition. Residual strains along the vertical direction and optical properties of the epilayers were investigated by using a variety of techniques including x-ray diffraction, low-temperature photoluminescence (PL), cathodoluminescence and Raman scattering. Compressive strains were revealed to exist in all the epilayers. Their strengths were found to reduce with increasing growth temperature. In addition, the optical properties of the epilayers were studied and the relationship between the strain and PL peak position was unveiled. © 2012 IOP Publishing Ltd.
ISSN0268-1242
2011 Impact Factor: 1.723
2011 SCImago Journal Rankings: 0.118
DOIhttp://dx.doi.org/10.1088/0268-1242/27/3/035008
ISI Accession Number IDWOS:000300624000010
Funding AgencyGrant Number
NSFC61028012
HK-RGC-GRFHKU705606P
Funding Information:

This work was supported by the Joint Research Fund for Overseas Chinese, Hong Kong and Macau Scientists of NSFC (grant no 61028012) and HK-RGC-GRF Grants (grant no HKU705606P).

DC Field
Value
dc.contributor.authorZheng, CC
dc.contributor.authorXu, SJ
dc.contributor.authorNing, JQ
dc.contributor.authorBao, W
dc.contributor.authorWang, JF
dc.contributor.authorGao, J
dc.contributor.authorLiu, JM
dc.contributor.authorZhu, JH
dc.contributor.authorLiu, XL
dc.date.accessioned2012-02-28T01:55:41Z
dc.date.available2012-02-28T01:55:41Z
dc.date.issued2012
dc.description.abstractZnO epilayers with a thickness of ∼360 nm were directly grown on r-sapphire planes at different temperatures (550, 500, 450 °C) with metal-organic chemical vapor deposition. Residual strains along the vertical direction and optical properties of the epilayers were investigated by using a variety of techniques including x-ray diffraction, low-temperature photoluminescence (PL), cathodoluminescence and Raman scattering. Compressive strains were revealed to exist in all the epilayers. Their strengths were found to reduce with increasing growth temperature. In addition, the optical properties of the epilayers were studied and the relationship between the strain and PL peak position was unveiled. © 2012 IOP Publishing Ltd.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationSemiconductor Science and Technology, 2012, v. 27 n. 3, article no. 035008 [How to Cite?]
DOI: http://dx.doi.org/10.1088/0268-1242/27/3/035008
dc.identifier.doihttp://dx.doi.org/10.1088/0268-1242/27/3/035008
dc.identifier.hkuros198708
dc.identifier.isiWOS:000300624000010
Funding AgencyGrant Number
NSFC61028012
HK-RGC-GRFHKU705606P
Funding Information:

This work was supported by the Joint Research Fund for Overseas Chinese, Hong Kong and Macau Scientists of NSFC (grant no 61028012) and HK-RGC-GRF Grants (grant no HKU705606P).

dc.identifier.issn0268-1242
2011 Impact Factor: 1.723
2011 SCImago Journal Rankings: 0.118
dc.identifier.issue3, article no. 035008
dc.identifier.scopuseid_2-s2.0-84863141790
dc.identifier.urihttp://hdl.handle.net/10722/145579
dc.identifier.volume27
dc.languageeng
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/journals/sst
dc.publisher.placeUnited Kingdom
dc.relation.ispartofSemiconductor Science and Technology
dc.rightsSemiconductor Science and Technology. Copyright © Institute of Physics Publishing.
dc.subjectCompressive strain
dc.subjectEpilayers grown
dc.subjectLow temperature photoluminescence
dc.subjectPeak position
dc.subjectR-sapphire
dc.titleResidual strains and optical properties of ZnO thin epilayers grown on r-sapphire planes
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. Chinese Academy of Sciences