UM
Resonant Raman scattering study of BexZn1-xO thin films grown on sapphire by molecular beam epitaxy
Wang Y.-C.4; Su L.-X.3; Zhao Y.4; Liu J.-F.4; Shen Z.-C.4; Feng Y.-H.4; Wu T.-Z.1; Tang Z.-K.2
2017-07-30
Source PublicationInternational Journal of Modern Physics B
Volume31
Issue16-19
AbstractResonance Raman spectra of BeZnO alloy materials were studied using 325 nm Laser. The research showed that the Raman spectra of BeZnO alloys presents a dual-mode vibration. Compare BeZnO alloy with ZnO single crystal, the A (LO) phonon vibration mode of BeZnO alloy moved to the larger wave number direction. The position of A (LO) phonon vibration modes of BeZnO and BeZnO was 580 cm and 582 cm, respectively. In addition, the temperature-dependent Raman spectroscopy was employed for BeZnO, and the phonon mode frequency shift with temperature was studied in detail. Finally, the stability of the polar and nonpolar BeZnO alloy materials was studied using resonance Raman spectroscopy. The results showed that the A (LO) phonon mode frequency of polar BeZnO alloy remained in the same position, while the nonpolar BeZnO alloys moved nearly 3.5 cm to larger direction after being placed in the air for two years. The reason may be that the stability of the nonpolar BeZnO alloy is relatively poor upon interaction with molecule such as HO, O in the air.
KeywordBexZn1-xO alloy molecular beam epitaxy phonon vibration Resonant Raman
DOI10.1142/S0217979217440672
URLView the original
Language英語
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Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionUniversity of Macau
Affiliation1.Shenzhen Institute of Advanced Technology
2.Universidade de Macau
3.San’an Optoelectronics Co.,Ltd
4.Xichang Satellite Launch Center
Recommended Citation
GB/T 7714
Wang Y.-C.,Su L.-X.,Zhao Y.,et al. Resonant Raman scattering study of BexZn1-xO thin films grown on sapphire by molecular beam epitaxy[C],2017.
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