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

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 cont...

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Bibliographic Details
Published inRSC advances Vol. 4; no. 7; pp. 3201 - 3205
Main Authors Li, Fan, Liu, Changjun, Yang, Jian, Wang, Zheng, Liu, Wenguang, Tian, Feng
Format Journal Article
LanguageEnglish
Published 01.01.2014
Subjects
bioimaging
Cadmium sulfides
carbon quantum dots
ethylenediamines
magnesium
moieties
photoluminescence
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Summary: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.
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ISSN:2046-2069
2046-2069
DOI:10.1039/C3RA43826K