具有雙重?zé)晒獍l(fā)射的碳量子點(diǎn)的制備及其熒光起源探討
發(fā)布時間:2018-08-29 11:53
【摘要】:采用不同濃度的硝酸回流活性炭制備了3種碳量子點(diǎn),其光致發(fā)光譜具有明顯的雙重發(fā)射結(jié)構(gòu),藍(lán)光發(fā)射部分隨激發(fā)波長的改變不移動,而長波發(fā)射部分隨激發(fā)波長的改變明顯移動.根據(jù)活性炭的微觀結(jié)構(gòu)分析了碳量子點(diǎn)的形成機(jī)制;通過詳細(xì)的形貌和譜學(xué)表征,分析了碳量子點(diǎn)藍(lán)光發(fā)射部分和長波發(fā)射部分的熒光起源.
[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.
【作者單位】: 興義民族師范學(xué)院物理與工程技術(shù)學(xué)院;
【基金】:貴州省教育廳自然科學(xué)研究項(xiàng)目(黔教合KY字[2013]192) 貴州省科學(xué)技術(shù)基金資助項(xiàng)目(黔科合LH字[2014]7407)
【分類號】: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.
【作者單位】: 興義民族師范學(xué)院物理與工程技術(shù)學(xué)院;
【基金】:貴州省教育廳自然科學(xué)研究項(xiàng)目(黔教合KY字[2013]192) 貴州省科學(xué)技術(shù)基金資助項(xiàng)目(黔科合LH字[2014]7407)
【分類號】:O471.1
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