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Triggering white-light emission in a 2D imine covalent organic framework through lanthanide augmentation

(2019) ACS APPLIED MATERIALS & INTERFACES. 11(30). p.27343-27352
Author
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Abstract
Recently, covalent organic frameworks (COFs) have emerged as an interesting class of porous materials, featuring tunable porosity and fluorescence properties based on reticular construction principles. Some COFs display highly emissive monocolored luminescence, but attaining white-light emission from COFs is difficult as it must account for a wide wavelength range. White-light emission is highly desired for solid-state lighting applications, and obtaining it usually demands the combination of red-, green-, and blue-light components. Hence, to achieve the targeted white-light emission, we report for the first time grafting of lanthanides (Eu3+/Tb3+) on a two-dimensional imine COF (TTA-DFP-COF). We studied the luminescence properties of the hybrid materials prepared by anchoring Eu3+ (red light) and Tb3+ (green light) beta-diketonate complexes onto the TTA-DFP-COF. Reticular construction is exploited to design strong coordination of Eu3+ and Tb3+ ions into nitrogen-rich pockets of the imine COF. Mixed Eu3+/Tb3+ materials are then prepared to incorporate red and green components along with the inherent blue light from the organic moieties of the COF to produce white-light emission. We show that COFs have the potential for hosting Eu3+ and Tb3+ complexes, which can be tuned to obtain desired excitations for applications in the field of optoelectronics, microscopy, optical sensing, and bioassay.
Keywords
covalent organic framework, reticular chemistry, imine, coordination, luminescence, white-light emission, lanthanide, LUMINESCENCE PROPERTIES, ENERGY-TRANSFER, COORDINATION, NANOSHEETS, XPS, PHOTOLUMINESCENCE, COMPLEXES, EU(III), STATES

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MLA
Krishnaraj, Chidharth et al. “Triggering White-light Emission in a 2D Imine Covalent Organic Framework Through Lanthanide Augmentation.” ACS APPLIED MATERIALS & INTERFACES 11.30 (2019): 27343–27352. Print.
APA
Krishnaraj, C., Kaczmarek, A., Jena, H., Leus, K., Chaoui, N., Schmidt, J., Van Deun, R., et al. (2019). Triggering white-light emission in a 2D imine covalent organic framework through lanthanide augmentation. ACS APPLIED MATERIALS & INTERFACES, 11(30), 27343–27352.
Chicago author-date
Krishnaraj, Chidharth, Anna Kaczmarek, Himanshu Jena, Karen Leus, Nicolas Chaoui, Johannes Schmidt, Rik Van Deun, and Pascal Van Der Voort. 2019. “Triggering White-light Emission in a 2D Imine Covalent Organic Framework Through Lanthanide Augmentation.” Acs Applied Materials & Interfaces 11 (30): 27343–27352.
Chicago author-date (all authors)
Krishnaraj, Chidharth, Anna Kaczmarek, Himanshu Jena, Karen Leus, Nicolas Chaoui, Johannes Schmidt, Rik Van Deun, and Pascal Van Der Voort. 2019. “Triggering White-light Emission in a 2D Imine Covalent Organic Framework Through Lanthanide Augmentation.” Acs Applied Materials & Interfaces 11 (30): 27343–27352.
Vancouver
1.
Krishnaraj C, Kaczmarek A, Jena H, Leus K, Chaoui N, Schmidt J, et al. Triggering white-light emission in a 2D imine covalent organic framework through lanthanide augmentation. ACS APPLIED MATERIALS & INTERFACES. 2019;11(30):27343–52.
IEEE
[1]
C. Krishnaraj et al., “Triggering white-light emission in a 2D imine covalent organic framework through lanthanide augmentation,” ACS APPLIED MATERIALS & INTERFACES, vol. 11, no. 30, pp. 27343–27352, 2019.
@article{8624837,
  abstract     = {Recently, covalent organic frameworks (COFs) have emerged as an interesting class of porous materials, featuring tunable porosity and fluorescence properties based on reticular construction principles. Some COFs display highly emissive monocolored luminescence, but attaining white-light emission from COFs is difficult as it must account for a wide wavelength range. White-light emission is highly desired for solid-state lighting applications, and obtaining it usually demands the combination of red-, green-, and blue-light components. Hence, to achieve the targeted white-light emission, we report for the first time grafting of lanthanides (Eu3+/Tb3+) on a two-dimensional imine COF (TTA-DFP-COF). We studied the luminescence properties of the hybrid materials prepared by anchoring Eu3+ (red light) and Tb3+ (green light) beta-diketonate complexes onto the TTA-DFP-COF. Reticular construction is exploited to design strong coordination of Eu3+ and Tb3+ ions into nitrogen-rich pockets of the imine COF. Mixed Eu3+/Tb3+ materials are then prepared to incorporate red and green components along with the inherent blue light from the organic moieties of the COF to produce white-light emission. We show that COFs have the potential for hosting Eu3+ and Tb3+ complexes, which can be tuned to obtain desired excitations for applications in the field of optoelectronics, microscopy, optical sensing, and bioassay.},
  author       = {Krishnaraj, Chidharth and Kaczmarek, Anna and Jena, Himanshu and Leus, Karen and Chaoui, Nicolas and Schmidt, Johannes and Van Deun, Rik and Van Der Voort, Pascal},
  issn         = {1944-8244},
  journal      = {ACS APPLIED MATERIALS & INTERFACES},
  keywords     = {covalent organic framework,reticular chemistry,imine,coordination,luminescence,white-light emission,lanthanide,LUMINESCENCE PROPERTIES,ENERGY-TRANSFER,COORDINATION,NANOSHEETS,XPS,PHOTOLUMINESCENCE,COMPLEXES,EU(III),STATES},
  language     = {eng},
  number       = {30},
  pages        = {27343--27352},
  title        = {Triggering white-light emission in a 2D imine covalent organic framework through lanthanide augmentation},
  url          = {http://dx.doi.org/10.1021/acsami.9b07779},
  volume       = {11},
  year         = {2019},
}

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