【摘 要】
：
以液态金属镓为媒介,利用热蒸发法合成大量非晶SiOx纳米管,这些纳米管管径均匀分布,平均约80 nm,长度大于10 μm,且管内外径比例较小.分析发现,在实验过程中,熔入金属镓液滴
【机 构】
：
合肥工业大学材料科学与工程学院,中国科技大学合肥尺度物质科学国家实验室
【基金项目】
：
安徽省自然科学基金;国家自然科学基金
论文部分内容阅读
以液态金属镓为媒介,利用热蒸发法合成大量非晶SiOx纳米管,这些纳米管管径均匀分布,平均约80 nm,长度大于10 μm,且管内外径比例较小.分析发现,在实验过程中,熔入金属镓液滴中的硅元素和氧元素结合并从液滴的表面饱和析出,形成以镓为中心的非晶SiOx纳米管状结构.在室温中,利用260 nm的激发光源激发SiOx纳米管,发现在蓝光波段附近发出强而稳定的PL谱线,这可能与样品中的氧缺陷和空位有关.
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