PENG Sai, LYU You-ming, HAN Shun etc. Effect of Growth Temperature on UV Absorption Characteristics and Growth Orientation of Cubic MgZnO Films[J]. Chinese Journal of Luminescence, 2014,35(8): 939-944
PENG Sai, LYU You-ming, HAN Shun etc. Effect of Growth Temperature on UV Absorption Characteristics and Growth Orientation of Cubic MgZnO Films[J]. Chinese Journal of Luminescence, 2014,35(8): 939-944 DOI: 10.3788/fgxb20143508.0939.
O films were deposited by pulsed laser deposition method. The influence of temperature on the growth orientation and optical absorption characteristics of cubic structure Mg
1-
x
Zn
x
O films were studied. The preferred growth orientation of MgZnO thin films changed from (200) to (111) when the growth temperature increased from 150℃ to 700℃. The UV absorption edge of MgZnO thin film changed with the Mg/Zn ratio in MgZnO crystal lattice when the growth temperature increased from 150℃ to 600℃. When the temperature changed from 600℃ to 700℃
the grain size of MgZnO thin film increased
and the UV absorption edge of MgZnO thin film blue shifted though the Mg/Zn ratio in MgZnO crystal lattice decreased. Finally
single (200) and (111) orientation MgZnO thin films were deposited on (200) and (111) orientation MgO substrates at 300℃and 700℃
respectively.
关键词
Keywords
references
Jaffe J E, Hess A C. Hartree-Fock study of phase changes in ZnO at high pressure [J]. Phys. Rev. B, 1993, 48(11):7903-7907.
Yang W, Hullavarad S S, Nagaraj B, et al. Compositionally-tuned epitaxial cubic MgxZn1-xO on Si (100) for deep ultraviolet photodetectors [J]. Appl. Phys. Lett., 2003, 82(20):3424-3426.
Yang W, Vispute R D, Choopun S, et al. Ultraviolet photoconductive detector based on epitaxial Mg0.34Zn0.66O thin films [J]. Appl. Phys. Lett., 2001, 78(18):2787-2789.
Ju Z G, Shan C X, Jiang D Y, et al. MgxZn1-xO-based photodetectors covering the whole solar-blind spectrum range [J]. Appl. Phys. Lett., 2008, 93(17):173505-1-3.
Chen X Y, Wong K H, Mak C L, et al. Selective growth of (100)-,(110)-, and (111)-oriented MgO films on Si (100) by pulsed laser deposition [J]. J. Appl. Phys., 2002, 91(9):5728-5734.
Huang R, Kitai A H. Temperature-dependence of the growth orientation of atomic layer growth MgO [J]. Appl. Phys. Lett., 1992, 61(12):1450-1452.
Tanaka H, Fujita S, Fujita S. Fabrication of wide-band-gap MgxZn1-xO quasi-ternary alloys by molecular-beam epitaxy [J]. Appl. Phys. Lett., 2005, 86(19):192911-1-3.
Chen J, Shen W Z, Chen N B, et al. The study of composition non-uniformity in ternary MgxZn1-xO thin films [J]. J. Phys.: Condensed Matter, 2003, 15(30):L475-L479.
Ardizzone S, Bianchi C L, Fadoni M, et al. Magnesium salts and oxide: An XPS overview [J]. Appl. Surf. Sci., 1997, 119(3):253-259.
Dohler G H. Doping superlattices (nipi crystals) [J]. IEEE J. Quant. Electron., 1986, 22(9):1682-1695.
Zhang Y T. Study of Growth and Properties of ZnO Films and MgZnO Alloy Films . Changchun: Jilin Univesity, 2005.