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Excitation dependent multicolour luminescence and colour blue-shifted afterglow at room-temperature of europium incorporated hydrogen-bonded multicomponent frameworks

Chaoqing Yang, Flavia Artizzu (UGent) , Karel Folens (UGent) , Gijs Du Laing (UGent) and Rik Van Deun (UGent)
(2021) JOURNAL OF MATERIALS CHEMISTRY C. 9(22). p.7154-7162
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Abstract
Fascinating multicoloured luminescence and long-lived afterglow have attracted tremendous interests due to their potential applications in display, information encryption, and organic electronics. Herein, room-temperature colour blue-shifted afterglow and excitation wavelength dependent multicoloured luminescence are developed based on an europium-doped hydrogen-bonded multicomponent framework built out of melamine and two aromatic carboxylic acids unit (MIT:Eu). The MIT:Eu material has been specially designed to yield multicolour luminescence including blue, green, and red emission. By altering the excitation wavelength from 254 to 365 nm, it displays colour tunable luminescence spanning from red to blue as a result of the independent activation of the three emission bands. The blue, red, and green emission characteristic lifetimes fall in distinctly different orders of magnitude of 10(-9), 10(-4), and 10(0) seconds respectively, which gives rise to a remarkable colour blue-shifted afterglow. Moreover the luminescence properties of these hydrogen-bonded frameworks can be further modulated by altering the water and europium content. On the basis of these unique multi-stimuli responsive emission properties, the application of MIT:Eu in multilevel information encryption is explored.
Keywords
Materials Chemistry, General Chemistry, PHOSPHORESCENCE

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MLA
Yang, Chaoqing, et al. “Excitation Dependent Multicolour Luminescence and Colour Blue-Shifted Afterglow at Room-Temperature of Europium Incorporated Hydrogen-Bonded Multicomponent Frameworks.” JOURNAL OF MATERIALS CHEMISTRY C, vol. 9, no. 22, 2021, pp. 7154–62, doi:10.1039/d1tc01627j.
APA
Yang, C., Artizzu, F., Folens, K., Du Laing, G., & Van Deun, R. (2021). Excitation dependent multicolour luminescence and colour blue-shifted afterglow at room-temperature of europium incorporated hydrogen-bonded multicomponent frameworks. JOURNAL OF MATERIALS CHEMISTRY C, 9(22), 7154–7162. https://doi.org/10.1039/d1tc01627j
Chicago author-date
Yang, Chaoqing, Flavia Artizzu, Karel Folens, Gijs Du Laing, and Rik Van Deun. 2021. “Excitation Dependent Multicolour Luminescence and Colour Blue-Shifted Afterglow at Room-Temperature of Europium Incorporated Hydrogen-Bonded Multicomponent Frameworks.” JOURNAL OF MATERIALS CHEMISTRY C 9 (22): 7154–62. https://doi.org/10.1039/d1tc01627j.
Chicago author-date (all authors)
Yang, Chaoqing, Flavia Artizzu, Karel Folens, Gijs Du Laing, and Rik Van Deun. 2021. “Excitation Dependent Multicolour Luminescence and Colour Blue-Shifted Afterglow at Room-Temperature of Europium Incorporated Hydrogen-Bonded Multicomponent Frameworks.” JOURNAL OF MATERIALS CHEMISTRY C 9 (22): 7154–7162. doi:10.1039/d1tc01627j.
Vancouver
1.
Yang C, Artizzu F, Folens K, Du Laing G, Van Deun R. Excitation dependent multicolour luminescence and colour blue-shifted afterglow at room-temperature of europium incorporated hydrogen-bonded multicomponent frameworks. JOURNAL OF MATERIALS CHEMISTRY C. 2021;9(22):7154–62.
IEEE
[1]
C. Yang, F. Artizzu, K. Folens, G. Du Laing, and R. Van Deun, “Excitation dependent multicolour luminescence and colour blue-shifted afterglow at room-temperature of europium incorporated hydrogen-bonded multicomponent frameworks,” JOURNAL OF MATERIALS CHEMISTRY C, vol. 9, no. 22, pp. 7154–7162, 2021.
@article{8711614,
  abstract     = {{Fascinating multicoloured luminescence and long-lived afterglow have attracted tremendous interests due to their potential applications in display, information encryption, and organic electronics. Herein, room-temperature colour blue-shifted afterglow and excitation wavelength dependent multicoloured luminescence are developed based on an europium-doped hydrogen-bonded multicomponent framework built out of melamine and two aromatic carboxylic acids unit (MIT:Eu). The MIT:Eu material has been specially designed to yield multicolour luminescence including blue, green, and red emission. By altering the excitation wavelength from 254 to 365 nm, it displays colour tunable luminescence spanning from red to blue as a result of the independent activation of the three emission bands. The blue, red, and green emission characteristic lifetimes fall in distinctly different orders of magnitude of 10(-9), 10(-4), and 10(0) seconds respectively, which gives rise to a remarkable colour blue-shifted afterglow. Moreover the luminescence properties of these hydrogen-bonded frameworks can be further modulated by altering the water and europium content. On the basis of these unique multi-stimuli responsive emission properties, the application of MIT:Eu in multilevel information encryption is explored.}},
  author       = {{Yang, Chaoqing and Artizzu, Flavia and Folens, Karel and Du Laing, Gijs and Van Deun, Rik}},
  issn         = {{2050-7526}},
  journal      = {{JOURNAL OF MATERIALS CHEMISTRY C}},
  keywords     = {{Materials Chemistry,General Chemistry,PHOSPHORESCENCE}},
  language     = {{eng}},
  number       = {{22}},
  pages        = {{7154--7162}},
  title        = {{Excitation dependent multicolour luminescence and colour blue-shifted afterglow at room-temperature of europium incorporated hydrogen-bonded multicomponent frameworks}},
  url          = {{http://dx.doi.org/10.1039/d1tc01627j}},
  volume       = {{9}},
  year         = {{2021}},
}

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