The influence of Mn content on luminescence properties in Mn-doped ZnO films deposited by ultrasonic spray assisted chemical vapor deposition

被引:19
作者
Shuang, D. [1 ,2 ]
Zhu, X. X. [2 ]
Wang, J. B. [1 ]
Zhong, X. L. [1 ]
Huang, G. J. [1 ]
He, C. [1 ]
机构
[1] Xiangtan Univ, Minist Educ, Key Lab Low Dimens Mat & Applicat Technol, Xiangtan 411105, Hunan, Peoples R China
[2] Hunan Inst Engn, Sch Sci, Xiangtan 411104, Hunan, Peoples R China
关键词
Spray assisted chemical vapor deposition; Cathodoluminescence; ROOM-TEMPERATURE FERROMAGNETISM; MAGNETIC-PROPERTIES; THIN-FILMS; ZN1-XMNXO FILMS; OXIDE; PHOTOLUMINESCENCE; SEMICONDUCTORS; NANOPARTICLES; SPINTRONICS; FABRICATION;
D O I
10.1016/j.apsusc.2011.02.001
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
Mn-doped ZnO (Zn1-xMnxO, 0 <= x <= 0.1) films are prepared by an ultrasonic spray assisted chemical vapor deposition method. X-ray diffraction and Raman scattering show that all the Zn1-xMnxO films are good wurtzite structures without any impurity phases. Cathodoluminescence spectra show that ultraviolet emission and green luminescence can be observed. The intensity of ultraviolet emission decreases with the increment of x, while the intensity of green luminescence increases with the increment of x when x <= 0.02. However, when x (x > 0.02) is further increased, the intensity of green luminescence decreases gradually, and the green luminescence disappears when x is above 0.075. We consider that the change of the luminescence is related to the competition between the radiative recombination and the non-radiative recombination. (C) 2011 Elsevier B. V. All rights reserved.
引用
收藏
页码:6085 / 6088
页数:4
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