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Improved quantum yield and excellent luminescence stability of europium-incorporated polymeric hydrogen-bonded heptazine frameworks due to an efficient hydrogen-bonding effect

Chaoqing Yang, Karel Folens (UGent) , Gijs Du Laing (UGent) , Flavia Artizzu (UGent) and Rik Van Deun (UGent)
(2020) ADVANCED FUNCTIONAL MATERIALS. 30(39).
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Abstract
Two of the most persistent challenges for the high-end application of luminescent lanthanide (Ln) compounds are a low quantum yield and luminescence quenching caused by a liquid medium. In this work, a type of polymeric hydrogen-bonded heptazine framework is developed incorporating trivalent europium ions (P-HHF-Eu) via a low-cost and facile low-temperature thermal condensation reaction. Structural characterization clearly reveals that the solid-phase pyrolyzation reaction results in the formation of P-HHF-Eu. Using time-resolved and steady state photoluminescence (PL) spectroscopies, the photophysics and photochemistry of P-HHF-Eu at different hydration degrees are investigated and the role of hydrogen bonding in the significant enhancement of the emission properties is demonstrated. Furthermore, the P-HHF-Eu particles suspended in polyvinyl alcohol hydrogel exhibit excellent luminescence stability with a high PL quantum yield of up to approximate to 46% and wavelength responsive color-tunable emission, which holds potential for security applications.
Keywords
GRAPHITIC CARBON NITRIDE, PHOTOCATALYTIC PROPERTIES, ORGANIC FRAMEWORKS, THERMAL-PROPERTIES, RAMAN, COMPLEXES, MELEM, DOTS, FLUORESCENCE, G-C3N4, heptazine polymers, hydrogen-bonded organic frameworks, lanthanides, luminescence

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MLA
Yang, Chaoqing, et al. “Improved Quantum Yield and Excellent Luminescence Stability of Europium-Incorporated Polymeric Hydrogen-Bonded Heptazine Frameworks Due to an Efficient Hydrogen-Bonding Effect.” ADVANCED FUNCTIONAL MATERIALS, vol. 30, no. 39, 2020, doi:10.1002/adfm.202003656.
APA
Yang, C., Folens, K., Du Laing, G., Artizzu, F., & Van Deun, R. (2020). Improved quantum yield and excellent luminescence stability of europium-incorporated polymeric hydrogen-bonded heptazine frameworks due to an efficient hydrogen-bonding effect. ADVANCED FUNCTIONAL MATERIALS, 30(39). https://doi.org/10.1002/adfm.202003656
Chicago author-date
Yang, Chaoqing, Karel Folens, Gijs Du Laing, Flavia Artizzu, and Rik Van Deun. 2020. “Improved Quantum Yield and Excellent Luminescence Stability of Europium-Incorporated Polymeric Hydrogen-Bonded Heptazine Frameworks Due to an Efficient Hydrogen-Bonding Effect.” ADVANCED FUNCTIONAL MATERIALS 30 (39). https://doi.org/10.1002/adfm.202003656.
Chicago author-date (all authors)
Yang, Chaoqing, Karel Folens, Gijs Du Laing, Flavia Artizzu, and Rik Van Deun. 2020. “Improved Quantum Yield and Excellent Luminescence Stability of Europium-Incorporated Polymeric Hydrogen-Bonded Heptazine Frameworks Due to an Efficient Hydrogen-Bonding Effect.” ADVANCED FUNCTIONAL MATERIALS 30 (39). doi:10.1002/adfm.202003656.
Vancouver
1.
Yang C, Folens K, Du Laing G, Artizzu F, Van Deun R. Improved quantum yield and excellent luminescence stability of europium-incorporated polymeric hydrogen-bonded heptazine frameworks due to an efficient hydrogen-bonding effect. ADVANCED FUNCTIONAL MATERIALS. 2020;30(39).
IEEE
[1]
C. Yang, K. Folens, G. Du Laing, F. Artizzu, and R. Van Deun, “Improved quantum yield and excellent luminescence stability of europium-incorporated polymeric hydrogen-bonded heptazine frameworks due to an efficient hydrogen-bonding effect,” ADVANCED FUNCTIONAL MATERIALS, vol. 30, no. 39, 2020.
@article{8675572,
  abstract     = {{Two of the most persistent challenges for the high-end application of luminescent lanthanide (Ln) compounds are a low quantum yield and luminescence quenching caused by a liquid medium. In this work, a type of polymeric hydrogen-bonded heptazine framework is developed incorporating trivalent europium ions (P-HHF-Eu) via a low-cost and facile low-temperature thermal condensation reaction. Structural characterization clearly reveals that the solid-phase pyrolyzation reaction results in the formation of P-HHF-Eu. Using time-resolved and steady state photoluminescence (PL) spectroscopies, the photophysics and photochemistry of P-HHF-Eu at different hydration degrees are investigated and the role of hydrogen bonding in the significant enhancement of the emission properties is demonstrated. Furthermore, the P-HHF-Eu particles suspended in polyvinyl alcohol hydrogel exhibit excellent luminescence stability with a high PL quantum yield of up to approximate to 46% and wavelength responsive color-tunable emission, which holds potential for security applications.}},
  articleno    = {{2003656}},
  author       = {{Yang, Chaoqing and Folens, Karel and Du Laing, Gijs and Artizzu, Flavia and Van Deun, Rik}},
  issn         = {{1616-301X}},
  journal      = {{ADVANCED FUNCTIONAL MATERIALS}},
  keywords     = {{GRAPHITIC CARBON NITRIDE,PHOTOCATALYTIC PROPERTIES,ORGANIC FRAMEWORKS,THERMAL-PROPERTIES,RAMAN,COMPLEXES,MELEM,DOTS,FLUORESCENCE,G-C3N4,heptazine polymers,hydrogen-bonded organic frameworks,lanthanides,luminescence}},
  language     = {{eng}},
  number       = {{39}},
  pages        = {{10}},
  title        = {{Improved quantum yield and excellent luminescence stability of europium-incorporated polymeric hydrogen-bonded heptazine frameworks due to an efficient hydrogen-bonding effect}},
  url          = {{http://doi.org/10.1002/adfm.202003656}},
  volume       = {{30}},
  year         = {{2020}},
}
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