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One-step hydrothermal synthesis and optical properties of PEG-passivated nitrogen-doped carbon dots
Zhang, BX; Zhang, GY; Gao, H; Wu, SH; Chen, JH; Li, XL
2015
Source PublicationRSC ADVANCES
Volume5Issue:10Pages:7395—7400
Subtype期刊文献
AbstractStrongly fluorescent polyethylene glycol passivated nitrogen-doped carbon dots (P-NCDs) were prepared through a one-step facile hydrothermal process using glutamic acid as the precursor. The passivated nitrogen-doped carbon dots with an average size of 6.5 nm showed strong blue luminescence when excited with ultraviolet light. Excitation wavelength dependent photoluminescence was observed in the obtained P-NCDs, and the relationship between the excitation and emission wavelength could be formulated as a linear function. The P-NCDs exhibit noticeable enhancement of photoluminescence after passivation and the quantum yield was as high as 18.7%. The P-NCDs also exhibited luminescence resistance to heavy metal ions to some extent. The excellent comprehensive properties enable the P-NCDs to have potential applications in detecting the polluted environment and other bio-imaging fields.
KeywordGraphene Quantum Dots Luminescence Properties Functional-groups Fluorescence Delivery Sulfur Green Rich
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24516
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Zhang, BX,Zhang, GY,Gao, H,et al. One-step hydrothermal synthesis and optical properties of PEG-passivated nitrogen-doped carbon dots[J]. RSC ADVANCES,2015,5(10):7395—7400.
APA Zhang, BX,Zhang, GY,Gao, H,Wu, SH,Chen, JH,&Li, XL.(2015).One-step hydrothermal synthesis and optical properties of PEG-passivated nitrogen-doped carbon dots.RSC ADVANCES,5(10),7395—7400.
MLA Zhang, BX,et al."One-step hydrothermal synthesis and optical properties of PEG-passivated nitrogen-doped carbon dots".RSC ADVANCES 5.10(2015):7395—7400.
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