采用射频磁控溅射技术制备了Ge-SiO2薄膜,在N2气氛下进行了不同温度的退火处理,分析了样品在室温下的光致发光(PL)特性.为探讨其发光机制,对薄膜的结构进行了表征.XRD、XPS、FTIR谱分析说明样品的发光特性与其结构相对应,394nmPL由GeO缺陷引起,580nmPL与Ge纳米晶粒和基质SiO2界面处的发光中心相联系.
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