碳纤维
化学发光
荧光
X射线光电子能谱
激发态
材料科学
电子顺磁共振
光化学
傅里叶变换红外光谱
分析化学(期刊)
化学
化学工程
物理化学
核磁共振
原子物理学
光学
有机化学
物理
工程类
复合数
复合材料
作者
Lixia Zhao,Dongrui Fan,Da-Bin Wang,Liang-Hong Guo,Yu Yang,Bin Wan,Hui Zhang
出处
期刊:Nanoscale
[The Royal Society of Chemistry]
日期:2013-01-01
卷期号:5 (7): 2655-2655
被引量:148
摘要
We report the surprising chemiluminescence (CL) behavior of fluorescent carbon dots in the presence of a strong alkaline solution, such as NaOH or KOH. The CL intensity was dependent on the concentration of the base and carbon dots in a certain range. A possible CL mechanism was studied by UV-Vis, fluorescence, CL, FTIR, XPS and EPR spectroscopy. Radiative recombination of the injected electrons by "chemical reduction" of carbon dots with thermally excited generated holes was proposed, which sheds new light on the characteristics of carbon dots.
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