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Issue 7, 2017
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Manipulating energy transfer in lanthanide-doped single nanoparticles for highly enhanced upconverting luminescence

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Abstract

Energy transfer (ET) is of fundamental importance in tuning the optical performance of lanthanide-doped upconversion nanoparticles (UCNPs). However, the fine control and manipulation of the ETs particularly for deleterious cross-relaxation type ETs (CR-ETs) in lanthanide-doped UCNPs remains a formidable challenge to date. Herein, we demonstrate a rational design strategy to manipulate the deleterious CR-ETs in lanthanide-doped UCNPs, by fine-tuning the distances at an extremely large length scale (>20 nm) among multiple lanthanide dopants that are simultaneously embedded into one single nanoparticle with specially designed multilayer nanostructures. The successful inhibition of the CR-ETs leads to a significantly enhanced upconversion luminescence signal with an intensity ∼70 times higher than that of co-doped conventional UCNPs. This finding paves a new way for the better control of the ETs in lanthanide-doped nanoparticles, and offers the possibility of constructing a series of promising single-nanocrystal-based anti-counterfeiting barcodes with well-identified UC emission color and lifetime outputs.

Graphical abstract: Manipulating energy transfer in lanthanide-doped single nanoparticles for highly enhanced upconverting luminescence

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Publication details

The article was received on 07 Feb 2017, accepted on 31 Mar 2017 and first published on 21 Apr 2017


Article type: Edge Article
DOI: 10.1039/C7SC01393K
Citation: Chem. Sci., 2017,8, 5050-5056
  • Open access: Creative Commons BY license
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    Manipulating energy transfer in lanthanide-doped single nanoparticles for highly enhanced upconverting luminescence

    Z. Zhuo, Y. Liu, D. Liu, P. Huang, F. Jiang, X. Chen and M. Hong, Chem. Sci., 2017, 8, 5050
    DOI: 10.1039/C7SC01393K

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