| Citation: |
Wu Chunxia, Lü Youming, Shen Dezhen, Fan Xiwu, Zhou Ming, Cai Lan. Phase Structure Transition and Optical Properties of MgxZn1-xO Alloy[J]. Journal of Semiconductors, 2007, In Press.
Wu C X, Lü Y, Shen D Z, Fan X W, Zhou M, Cai L. Phase Structure Transition and Optical Properties of MgxZn1-xO Alloy[J]. Chin. J. Semicond., 2007, 28(5): 701.
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Phase Structure Transition and Optical Properties of MgxZn1-xO Alloy
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Abstract
MgxZn1-xO thin films with x=0,0.11,0.28,0.44,0.51,and 0.65 were grown on (0001) sapphire substrates with plasma-assisted molecular beam epitaxy.X-ray diffraction measurement reveals that there is only one MgxZn1-xO (002) peak at 34.46~34.67° with increasing Mg content up to 0.28,indicating the formation of single-phase MgxZn1-xO films with hexagonal crystal structure.When xrises to 0.44,a phase separation of MgxZn1-xO occurs.When x equals 0.65,the ZnMgO transforms completely from wurtzite to cubic structure.The effects of phase structure transition on optical properties of MgxZn1-xO alloy films were investigated via room temperature photoluminescence and absorption spectra.-
Keywords:
- P-MBE,
- MgxZn1-xO alloy films,
- photoluminescence,
- phase separation
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References
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Proportional views
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