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Solution-processable Yb/Er 2D-layered metallorganic frameworks with high NIR-emission quantum yields

Flavia Artizzu (UGent) , Matteo Atzori, Jing Liu (UGent) , Dimitrije Mara (UGent) , Kristof Van Hecke (UGent) and Rik Van Deun (UGent)
(2019) JOURNAL OF MATERIALS CHEMISTRY C. 7(36). p.11207-11214
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Abstract
Here we report on solution-processable homo- and hetero-metallic Yb3+, Er3+ and Gd3+ lanthanide 2D-layered metallorganic frameworks with the chlorocyananilate linker (ClCNAn(2-), the dianion of 2-chloro-5-cyano-3,6-dihydroxybenzoquinone) showing long-lived emission in the near-infrared (NIR) spectral region after efficient ligand photosensitization. In these compounds the nature of the lanthanide ion determines the in-plane structural arrangement of the 2D layers, giving rise to peculiar porous networks. The investigated compounds, which are synthesized in high yields through a rapid one-pot procedure, show strong luminescence upon ligand excitation in a broad visible range with unusually long-lived emission for Er3+ (similar to 10 mu s), either in the bulk crystalline state, in solution, or in crystalline films dropcast from solution. The remarkable sensitization properties of the ligand provide NIR emission total quantum yields as high as 15.6% for Yb3+ and 0.16% for Er3+ in DMSO-d(6), which are the highest so far reported for coordination compounds. Efficient Yb-to-Er energy transfer is observed in the heterometallic derivative, which is maintained in all the studied material phases. The remarkable optical performance, the high thermal stability, the facile synthesis and the suitability for solution processing make these materials particularly promising for integration in photonic devices working in the NIR.
Keywords
NEAR-INFRARED-LUMINESCENCE, METAL-ORGANIC FRAMEWORK, COORDINATION POLYMERS, BEDT-TTF, COMPLEXES, LIFETIME

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MLA
Artizzu, Flavia, et al. “Solution-Processable Yb/Er 2D-Layered Metallorganic Frameworks with High NIR-Emission Quantum Yields.” JOURNAL OF MATERIALS CHEMISTRY C, vol. 7, no. 36, 2019, pp. 11207–14.
APA
Artizzu, F., Atzori, M., Liu, J., Mara, D., Van Hecke, K., & Van Deun, R. (2019). Solution-processable Yb/Er 2D-layered metallorganic frameworks with high NIR-emission quantum yields. JOURNAL OF MATERIALS CHEMISTRY C, 7(36), 11207–11214.
Chicago author-date
Artizzu, Flavia, Matteo Atzori, Jing Liu, Dimitrije Mara, Kristof Van Hecke, and Rik Van Deun. 2019. “Solution-Processable Yb/Er 2D-Layered Metallorganic Frameworks with High NIR-Emission Quantum Yields.” JOURNAL OF MATERIALS CHEMISTRY C 7 (36): 11207–14.
Chicago author-date (all authors)
Artizzu, Flavia, Matteo Atzori, Jing Liu, Dimitrije Mara, Kristof Van Hecke, and Rik Van Deun. 2019. “Solution-Processable Yb/Er 2D-Layered Metallorganic Frameworks with High NIR-Emission Quantum Yields.” JOURNAL OF MATERIALS CHEMISTRY C 7 (36): 11207–11214.
Vancouver
1.
Artizzu F, Atzori M, Liu J, Mara D, Van Hecke K, Van Deun R. Solution-processable Yb/Er 2D-layered metallorganic frameworks with high NIR-emission quantum yields. JOURNAL OF MATERIALS CHEMISTRY C. 2019;7(36):11207–14.
IEEE
[1]
F. Artizzu, M. Atzori, J. Liu, D. Mara, K. Van Hecke, and R. Van Deun, “Solution-processable Yb/Er 2D-layered metallorganic frameworks with high NIR-emission quantum yields,” JOURNAL OF MATERIALS CHEMISTRY C, vol. 7, no. 36, pp. 11207–11214, 2019.
@article{8631444,
  abstract     = {Here we report on solution-processable homo- and hetero-metallic Yb3+, Er3+ and Gd3+ lanthanide 2D-layered metallorganic frameworks with the chlorocyananilate linker (ClCNAn(2-), the dianion of 2-chloro-5-cyano-3,6-dihydroxybenzoquinone) showing long-lived emission in the near-infrared (NIR) spectral region after efficient ligand photosensitization. In these compounds the nature of the lanthanide ion determines the in-plane structural arrangement of the 2D layers, giving rise to peculiar porous networks. The investigated compounds, which are synthesized in high yields through a rapid one-pot procedure, show strong luminescence upon ligand excitation in a broad visible range with unusually long-lived emission for Er3+ (similar to 10 mu s), either in the bulk crystalline state, in solution, or in crystalline films dropcast from solution. The remarkable sensitization properties of the ligand provide NIR emission total quantum yields as high as 15.6% for Yb3+ and 0.16% for Er3+ in DMSO-d(6), which are the highest so far reported for coordination compounds. Efficient Yb-to-Er energy transfer is observed in the heterometallic derivative, which is maintained in all the studied material phases. The remarkable optical performance, the high thermal stability, the facile synthesis and the suitability for solution processing make these materials particularly promising for integration in photonic devices working in the NIR.},
  author       = {Artizzu, Flavia and Atzori, Matteo and Liu, Jing and Mara, Dimitrije and Van Hecke, Kristof and Van Deun, Rik},
  issn         = {2050-7526},
  journal      = {JOURNAL OF MATERIALS CHEMISTRY C},
  keywords     = {NEAR-INFRARED-LUMINESCENCE,METAL-ORGANIC FRAMEWORK,COORDINATION POLYMERS,BEDT-TTF,COMPLEXES,LIFETIME},
  language     = {eng},
  number       = {36},
  pages        = {11207--11214},
  title        = {Solution-processable Yb/Er 2D-layered metallorganic frameworks with high NIR-emission quantum yields},
  url          = {http://dx.doi.org/10.1039/c9tc03698a},
  volume       = {7},
  year         = {2019},
}

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