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Comparative study of polar and non-polar BeZnO films grown by plasma-assisted molecular beam epitaxy
Wang Y.-C.2; Wu T.-Z.1; Chen M.-M.2; Su L.-X.2; Zhang Q.-L.2; Tang Z.-K.2
2013-11-01
Source PublicationFaguang Xuebao/Chinese Journal of Luminescence
ISSN10007032
Volume34Issue:11Pages:1483-1488
Abstract

BeZnO films were grown on different crystallographic planes (c-, a- and r-planes) of sapphire substrates using plasma-assisted molecular beam epitaxy (P-MBE). High quality BeZnO films were achieved using a multi-layer buffer design with full widths at half maximum (FWHMs) of rocking curves up to 600 arcsec. Polar BeZnO films were obtained on the a- and c-plane sapphire substrates, while the nonpolar ones were obtained on the r-plane sapphire substrate. The Raman spectroscopy confirmed the Be dopants in the ZnO were at the same level in three samples. The BeZnO sample grown on the r-sapphire substrate were found to have largest grains and higher FWHM, while the ones grown on a- and c-sapphire subatrates had the similar fine grains and lower FWHM. However, the photoluminescence (PL) spectra indicated the non-polar BeZnO sample had significantly stronger ultraviolet emission and weaker green emission than polar samples.

KeywordBezno Crystal Orientation Molecular Beam Epitaxy Photoluminescence Sapphire
DOI10.3788/fgxb20133411.1483
URLView the original
Language英語English
Scopus ID2-s2.0-84891312931
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Citation statistics
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Shenzhen Institute of Advanced Technology
2.Sun Yat-Sen University
3.Hong Kong University of Science and Technology
Recommended Citation
GB/T 7714
Wang Y.-C.,Wu T.-Z.,Chen M.-M.,et al. Comparative study of polar and non-polar BeZnO films grown by plasma-assisted molecular beam epitaxy[J]. Faguang Xuebao/Chinese Journal of Luminescence, 2013, 34(11), 1483-1488.
APA Wang Y.-C.., Wu T.-Z.., Chen M.-M.., Su L.-X.., Zhang Q.-L.., & Tang Z.-K. (2013). Comparative study of polar and non-polar BeZnO films grown by plasma-assisted molecular beam epitaxy. Faguang Xuebao/Chinese Journal of Luminescence, 34(11), 1483-1488.
MLA Wang Y.-C.,et al."Comparative study of polar and non-polar BeZnO films grown by plasma-assisted molecular beam epitaxy".Faguang Xuebao/Chinese Journal of Luminescence 34.11(2013):1483-1488.
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