具有双重荧光发射的碳量子点的制备及其荧光起源探讨
发布时间：2018-08-29 11:53
【摘要】：采用不同浓度的硝酸回流活性炭制备了3种碳量子点,其光致发光谱具有明显的双重发射结构,蓝光发射部分随激发波长的改变不移动,而长波发射部分随激发波长的改变明显移动.根据活性炭的微观结构分析了碳量子点的形成机制;通过详细的形貌和谱学表征,分析了碳量子点蓝光发射部分和长波发射部分的荧光起源.
[Abstract]:Three kinds of carbon quantum dots were synthesized by different concentration of nitric acid reflux activated carbon. the photoluminescence spectra of the three kinds of carbon quantum dots have obvious double emission structure. the blue emission part does not move with the change of excitation wavelength, but the long-wave emission part obviously moves with the change of excitation wavelength. The fluorescence origins of blue emission and long wave emission of carbon quantum dots were analyzed by detailed morphology and spectroscopy.
【作者单位】： 兴义民族师范学院物理与工程技术学院;
【基金】：贵州省教育厅自然科学研究项目(黔教合KY字[2013]192) 贵州省科学技术基金资助项目(黔科合LH字[2014]7407)
【分类号】：O471.1
[Abstract]:Three kinds of carbon quantum dots were synthesized by different concentration of nitric acid reflux activated carbon. the photoluminescence spectra of the three kinds of carbon quantum dots have obvious double emission structure. the blue emission part does not move with the change of excitation wavelength, but the long-wave emission part obviously moves with the change of excitation wavelength. The fluorescence origins of blue emission and long wave emission of carbon quantum dots were analyzed by detailed morphology and spectroscopy.
【作者单位】： 兴义民族师范学院物理与工程技术学院;
【基金】：贵州省教育厅自然科学研究项目(黔教合KY字[2013]192) 贵州省科学技术基金资助项目(黔科合LH字[2014]7407)
【分类号】：O471.1
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