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在ITO衬底上电沉积了Co掺杂ZnO薄膜.X射线粉末衍射(XRD)和扫描电子显微镜(SEM)结果表明Co掺杂并没有改变ZnO的六角纤锌矿结构,但可以在一定程度上改变晶体的形貌.室温光致发光光谱(PL)结果表明Co掺杂导致薄膜的带隙变窄.磁性测试结果表明,10% Co掺杂样品室温下呈现顺磁性,而5%Co掺杂样品在室温下呈现铁磁性,我们认为其铁磁性是由Co掺杂引起的缺陷导致的.

参考文献

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