Aqueous manganese-doped core/shell CdTe/ZnS quantum dots with strong fluorescence and high relaxivity

Lihong Jing, Ke Ding, Sergii Kalytchuk, Yu Wang, Ruirui Qiao, Stephen V. Kershaw, Andrey L. Rogach, Mingyuan Gao

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38 Citations (Scopus)

Abstract

Core/shell CdTe/ZnS colloidal quantum dots with varying dopant levels (4.7-9.7%) of paramagnetic manganese ions spatially distributed within the thin ZnS shell are synthesized by the aqueous approach. They exhibit both strong fluorescence originating from the CdTe core (up to 45% room temperature emission quantum yield) and high ionic relaxivity in the range of 10.7-5.4 mM -1 s-1, which render them promising dual fluorescent/paramagnetic probes.

Original languageEnglish
Pages (from-to)18752-18761
Number of pages10
JournalJournal of Physical Chemistry C
Volume117
Issue number36
DOIs
Publication statusPublished - 12 Sep 2013
Externally publishedYes

Cite this

Jing, L., Ding, K., Kalytchuk, S., Wang, Y., Qiao, R., Kershaw, S. V., Rogach, A. L., & Gao, M. (2013). Aqueous manganese-doped core/shell CdTe/ZnS quantum dots with strong fluorescence and high relaxivity. Journal of Physical Chemistry C, 117(36), 18752-18761. https://doi.org/10.1021/jp406342m