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Manipulating Energy Transfer in Lanthanide-Doped Single Nanoparticle for Highly Enhanced Upconverting Luminescence

Abstract

Energy transfer (ET) is of fundamental importance in tuning the optical performance for lanthanide-doped upconversion nanoparticles (UCNPs). However, 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 significantly enhanced upconversion luminescence signal with an intensity ~70 times higher than co-doped conventional UCNPs. This finding paves a new way for better control of the ETs in lanthanide-doped nanoparticles, and offers the possibility for constructing a series of promising single-nanocrystal-based anti-counterfeiting barcodes with well-identified UC emission color and lifetime outputs.

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Publication details

The article was accepted on 31 Mar 2017 and first published on 21 Apr 2017


Article type: Edge Article
DOI: 10.1039/C7SC01393K
Citation: Chem. Sci., 2017, Accepted Manuscript
  • Open access: Creative Commons BY license
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    Manipulating Energy Transfer in Lanthanide-Doped Single Nanoparticle for Highly Enhanced Upconverting Luminescence

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

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