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Resonant Raman scattering study of BexZn1-xO thin films grown on sapphire by molecular beam epitaxy
Wang, Yu-Chao; Su, Long-Xing; Zhao, Yu; Liu, Jian-Feng; Shen, Zheng-Chuan; Feng, Yu-Hua; Wu, Tian-Zhun; Tang, Zi-Kang
2017-07-30
Source PublicationINTERNATIONAL JOURNAL OF MODERN PHYSICS B
ISSN0217-9792
Volume31Issue:16-19
AbstractResonance Raman spectra of BexZn1-xO alloy materials were studied using 325 nm Laser. The research showed that the Raman spectra of BexZn1-xO alloys presents a dual-mode vibration. Compare BexZn1-xO alloy with ZnO single crystal, the A(1) (LO) phonon vibration mode of BexZn1-xO alloy moved to the larger wave number direction. The position of A(1) (LO) phonon vibration modes of Be0.08Zn0.92O and Be0.12Zn0.88O was 580 cm(-1) and 582 cm(-1), respectively. In addition, the temperature-dependent Raman spectroscopy was employed for Be0.12Zn0.88O, and the phonon mode frequency shift with temperature was studied in detail. Finally, the stability of the polar and nonpolar BexZn1-xO alloy materials was studied using resonance Raman spectroscopy. The results showed that the A(1) (LO) phonon mode frequency of polar BexZn1-xO alloy remained in the same position, while the nonpolar BexZn1-xO alloys moved nearly 3.5 cm(-1) to larger direction after being placed in the air for two years. The reason may be that the stability of the nonpolar BexZn1-xO alloy is relatively poor upon interaction with molecule such as H2O, O-2 in the air.
KeywordResonant Raman BexZn1-xO alloy phonon vibration molecular beam epitaxy
DOI10.1142/S0217979217440672
URLView the original
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Applied ; Physics, Condensed Matter ; Physics, Mathematical
WOS IDWOS:000406349900067
PublisherWORLD SCIENTIFIC PUBL CO PTE LTD
The Source to ArticleWOS
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Document TypeJournal article
CollectionUniversity of Macau
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Wang, Yu-Chao,Su, Long-Xing,Zhao, Yu,et al. Resonant Raman scattering study of BexZn1-xO thin films grown on sapphire by molecular beam epitaxy[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B,2017,31(16-19).
APA Wang, Yu-Chao.,Su, Long-Xing.,Zhao, Yu.,Liu, Jian-Feng.,Shen, Zheng-Chuan.,...&Tang, Zi-Kang.(2017).Resonant Raman scattering study of BexZn1-xO thin films grown on sapphire by molecular beam epitaxy.INTERNATIONAL JOURNAL OF MODERN PHYSICS B,31(16-19).
MLA Wang, Yu-Chao,et al."Resonant Raman scattering study of BexZn1-xO thin films grown on sapphire by molecular beam epitaxy".INTERNATIONAL JOURNAL OF MODERN PHYSICS B 31.16-19(2017).
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