Structural and optical properties of Zn-doped SnO2 films prepared by DC and RF magnetron co-sputtering

被引:44
作者
Xu, Bo [1 ]
Ren, Xiao-Guang [1 ]
Gu, Guang-Rui [1 ]
Lan, Lei-Lei [1 ]
Wu, Bao-Jia [1 ]
机构
[1] Yanbian Univ, Dept Phys, Coll Sci, Yanji 133002, Peoples R China
基金
中国国家自然科学基金;
关键词
Magnetron co-sputtering; Zn-doped SnO2; Optical properties; Structural properties; THIN-FILMS; PHOTOLUMINESCENCE PROPERTIES; ROOM-TEMPERATURE; FIELD-EMISSION; NANOSTRUCTURES; FERROMAGNETISM; ENHANCEMENT; SB;
D O I
10.1016/j.spmi.2015.10.043
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
In the present work, the Zn-doped SnO2 (SnO2:Zn) thin films, with different Zn-doping concentration, were successfully prepared on Si (100) and glass substrates by direct current (DC) and radio frequency (RF) magnetron co-sputtering. The effects of dopant concentration, determined by the sputtering power applied on Zn target, on the structural, photoluminescent and optical performances of Zn-doped SnO2 films were investigated by X-ray diffraction(XRD), scanning electron microscope(SEM), energy dispersive X-ray (EDX),high-resolution transmission electron microscopy(HRTEM) and Ultraviolet-VisibleNear IR spectroscopy. The results show all these films exhibited excellent crystalline quality with tetragonal rutile structure. Two photoluminescence (PL) peaks related to Zn-doping were detected at about 351 nm (3.53 eV) and 369 nm (3.36 eV). Moreover, the average transmittance and the band gap energy of the films continuously decreased from 85% to 75% and from 3.52 eV to 334 eV, respectively, with the increase of the doping level. The excellent properties of Zn-doped SnO2 films make them capable for wider applications. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:34 / 42
页数:9
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