Mg/N double doping strategy to fabricate extremely high luminescent carbon dots for bioimaging

被引:153
|
作者
Li, Fan [1 ]
Liu, Changjun [1 ]
Yang, Jian [1 ]
Wang, Zheng [1 ]
Liu, Wenguang [2 ]
Tian, Feng [1 ]
机构
[1] Acad Mil Med Sci, Inst Med Equipment, Tianjin 300161, Peoples R China
[2] Tianjin Univ, Tianjin Key Lab Composite & Funct Mat, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China
来源
RSC ADVANCES | 2014年 / 4卷 / 07期
基金
中国国家自然科学基金;
关键词
ONE-STEP SYNTHESIS; QUANTUM DOTS; NANODOTS; PHOTOLUMINESCENCE; NANOPARTICLES; PYROLYSIS;
D O I
10.1039/c3ra43826k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Carbon dots (CDs) with quantum yield up to 83% have been synthesized with a Mg/N double doping fluorescence-enhanced strategy. Besides N-mediated surface passivation by ethylenediamine, the Mg-citric acid chelate played the roles of introducing Mg and preserving the carboxyl group, both greatly contributing to the photoluminescence enhancement of the final CDs. Importantly, the N- and Mg-doping functioned in concert without mutual influence.
引用
收藏
页码:3201 / 3205
页数:5
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