The effects of thermal annealing on properties of MgxZn1-xO films by sputtering

被引:23
作者
Li, Hui [1 ]
Zhang, Yongzhe [1 ]
Pan, Xiaojun [1 ]
Wang, Tao [1 ]
Xie, Erqing [1 ]
机构
[1] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
关键词
Doping; Thermal annealing; Band gap; Photoluminescence; EPITAXIAL-GROWTH; BAND-GAP; ZNO; PHOTOLUMINESCENCE; TEMPERATURE; EMISSION;
D O I
10.1016/j.jallcom.2008.04.018
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We reported the effects of thermal annealing on the Mg-doped ZnO (MgxZn1-xO) films, which were prepared in the Ar-O-2 mixture ambience by magnetron sputtering. The X-ray diffraction (XRD) patterns showed that the crystal quality of films was enhanced by the post-annealing. and the lattice constants changed to some extent. Meanwhile, the UV-vis absorption spectra indicated that the band gap of the films increased as the increasing annealing temperature, which was resulted by the increasing Mg content by energy dispersive X-ray spectroscopy (EDS). Moreover, it could be seen that the photoluminescence (PL) spectrum was different from that of as-grown MgxZn1-xO films: the intensity of UV emission was enhanced but there was no shift with increasing Mg contents in MgxZn1-xO films. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:208 / 210
页数:3
相关论文
共 17 条
[1]   High temperature excitonic stimulated emission from ZnO epitaxial layers [J].
Bagnall, DM ;
Chen, YF ;
Zhu, Z ;
Yao, T ;
Shen, MY ;
Goto, T .
APPLIED PHYSICS LETTERS, 1998, 73 (08) :1038-1040
[2]   Effects of post-annealing temperature on structural, optical, and electrical properties of ZnO and Znl-xMgxO films by reactive RF magnetron sputtering [J].
Choi, CH ;
Kim, SH .
JOURNAL OF CRYSTAL GROWTH, 2005, 283 (1-2) :170-179
[3]   Realization of band gap above 5.0 eV in metastable cubic-phase MgxZn1-xO alloy films [J].
Choopun, S ;
Vispute, RD ;
Yang, W ;
Sharma, RP ;
Venkatesan, T ;
Shen, H .
APPLIED PHYSICS LETTERS, 2002, 80 (09) :1529-1531
[4]   Growth and physical properties of ZnxCd1-xO thin films prepared by spray pyrolysis technique [J].
Devshette, P. M. ;
Deshpande, N. G. ;
Bichile, G. K. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 463 (1-2) :576-580
[5]   ZnMgO epilayers and ZnO-ZnMgO quantum wells for optoelectronic applications in the blue and UV spectral region [J].
Gruber, T ;
Kirchner, C ;
Kling, R ;
Reuss, F ;
Waag, A .
APPLIED PHYSICS LETTERS, 2004, 84 (26) :5359-5361
[6]   Photoluminescence dependence of ZnO films grown on Si(100) by radio-frequency magnetron sputtering on the growth ambient [J].
Jeong, SH ;
Kim, BS ;
Lee, BT .
APPLIED PHYSICS LETTERS, 2003, 82 (16) :2625-2627
[7]   Molecular beam epitaxial growth of wide bandgap ZnMgO alloy films on (111)-oriented Si substrate toward UV-detector applications [J].
Koike, K ;
Hama, K ;
Nakashima, I ;
Takada, G ;
Ogata, K ;
Sasa, S ;
Inoue, M ;
Yano, M .
JOURNAL OF CRYSTAL GROWTH, 2005, 278 (1-4) :288-292
[8]   The influence of ambient conditions on properties of MgxZn1-xO films by sputtering [J].
Li, Hui ;
Pan, Xiaojun ;
Qiao, Min ;
Zhang, Yongzhe ;
Wang, Tao ;
Xie, Erqing .
VACUUM, 2008, 82 (05) :459-462
[9]   Effects of thermal annealing on the structural and optical properties E of MgxZn1-xO nanocrystals [J].
Li, JH ;
Liu, YC ;
Shao, CL ;
Zhang, XT ;
Shen, DZ ;
Lu, YM ;
Zhang, JY ;
Fan, XW .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 283 (02) :513-517
[10]   RETRACTED: Dependence of the structural and optical properties of ZnO thin films on the substrate temperature in atomic layer deposition and post-annealing (Retraction of VOL 515, PG 3335, 2007) (Retracted Article) [J].
Lim, Jongmin ;
Lee, Chongmu .
JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 449 (1-2) :371-374