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Influence of the cobalt concentration on optical and magnetic properties of zinc oxide

期刊名称：Chinese Science Bulletin (SCI Impact factor: 0.917
时间：0
页码：897-901
语言：英文
分类：O484.43[理学—固体物理;理学—物理] TQ132.41[化学工程—无机化工]
作者机构：[1]Institute of Optoelectronics Technology, Beijing Jiaotong University, [2] Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education, Beijing 100044, China
相关基金：This work was supported by the National Natural Science Foundation of China （Grant Nos. 60576016, 10774013, 10804006）, National High-Tech Research and Development Program of China （Grant No. 2006AA03Z0412）, 111 project （Grant No. B08002）, Fund for the Doctoral Program of Higher Education in China （RFDP）（Grant Nos. 20070004024, 20070004031）, Beijing Natural Science Foundation of China （BNSFC）（Grant No. 1102028）, National Basic Research Program of China （Grant No. 2010CB327705）, National Natural Science Funds for Distinguished Young Scholar （Grant No. 60825407） and DIF Beijing Jiaotong University （Grant Nos. 141028522, 141036522）.
相关项目：定向纳米薄膜的制备及其提高器件发光性能的研究

关键词：氧化锌, 钴氧化物, 磁性, 直流反应磁控溅射, X射线光电子能谱, 室温光致发光, 扫描电子显微镜, 纤锌矿结构, magnetic properties, zinc oxide, optical properties, photoluminescence

中文摘要：

一系列共同做的 ZnO 薄电影被直接当前的反应磁控管在玻璃底层上劈啪作响准备了。借助于 X 光检查衍射(XRD ) 和扫描电子显微镜学(SEM ) 的结构的描述没给第二阶段形成的证据。质的作文和化学状态被精力描绘散 X 光检查光谱学(版本) 和 X 光检查 photoelectronic spectrometry (XPS ) 分别地。结果证实公司作为 Co3+ 被合并，占据在 ZnOs wurtzite 结构的 Zn2+ 地点。这些电影的光性质被房间温度光致发光调查，并且光性质被光发射度学习。磁性的分析被量设计 MPMS (枪乌) XL 在房间温度并且在 50 K 执行。结果证明所有共同做的 ZnO 薄电影由直接当前的磁控管劈啪作响准备了不在 50 K 上面是铁磁性的。

英文摘要：

A series of Co-doped ZnO thin films have been prepared by direct current reactive magnetron sputtering on glass substrates. The structural characterization by means of X-ray diffraction （XRD） and scanning electron microscopy （SEM） gave no evidence of second phase formation. The qualitative composition and chemical state were characterized by energy dispersive X-ray spectroscopy （EDS） and X-ray photoelectronic spectrometry （XPS）, respectively. The results confirmed that Co was incorporated as Co^3＋, occupying the Zn^2＋ sites in ZnO＇s wurtzite structure. The luminescence properties of the films were investigated by room temperature photoluminescence, and the optical properties were studied by optical transmittance. The magnetic analysis was carried out at room temperature and at 50 K by Quantum Design MPMS （SQUID） XL. The results showed that all the Co-doped ZnO thin films prepared by direct current magnetron sputtering were not ferromagnetic above 50 K.

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