Influence of Ag-doping on the optical properties of ZnO films

被引：70

作者：

Xue, H. ^{[2
]}

Xu, X. L. ^{[1
]}

Chen, Y. ^{[2
]}

Zhang, G. H. ^{[2
]}

Ma, S. Y. ^{[1
]}

机构：

[1] NW Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Gansu, Peoples R China

[2] Northwest Univ Nationality, Key Lab Elect Mat State Natl Affairs Commiss PRC, Lanzhou 730030, Gansu, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2008年 / 255卷 / 05期

基金：

中国国家自然科学基金;

关键词：

ZnO thin films; RF magnetron sputtering; X-ray diffraction; Optical properties;

D O I：

10.1016/j.apsusc.2008.06.021

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：

Ag-doped ZnO thin. films were prepared on glass substrates by radio frequency co-reactive magnetron sputtering technique. The effects of Ag-doping on the microstructure and optical properties of the ZnO thin. films were studied by X-ray diffraction (XRD) and UV-visible spectroscopy. The photoluminescence (PL) measurements at room temperature revealed an ultraviolet and a blue emission. The origin of these emissions was discussed. It was also demonstrated that the optical band edge shifted to a shorter wavelength. first as Ag is incorporated, and then to a longer wavelength with the increasing of Ag-doping concentration. The optical band gaps calculated based on the quantum confinement model are in good agreement with the experimental values. (C) 2008 Elsevier B. V. All rights reserved.

引用

页码：1806 / 1810

页数：5

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