Thermostable Eu(III)-nanorod luminophores with effective photosensitized energy transfer

Onodera, Hidetoshi; Nakajima, Ayako; Nakanishi, Takayuki; Fushimi, Koji; Hasegawa, Yasuchika

doi:10.1016/j.jallcom.2015.06.140

Cited by 12 publications

(2 citation statements)

References 44 publications

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“…With the exploitation of natural resources and development of modern technology, a variety of rare earth elements have been extensively discovered and utilized consecutively. Rare earth elements have unique physical and chemical properties, which led to them being widely used in the photoluminescence and energy conversion fields. − More remarkably, rare earth organic complexes have been recently targeted as a research hotspot in the field of photoluminescence. − In general, the photoluminescence efficiency of rare earth complexes mainly depends on the intramolecular energy transfer efficiency between organic ligands and rare earth central ions, which is determined by the lowest triplet energy level of organic ligands and the resonance emission energy of rare earth ions. , However, the fluorescence effect of the signal europium ion (Eu 3+ ) is comparatively weak owing to the f–f* transition parity resistance. To achieve efficient photoluminescence properties, β-diketone was exploited to prepare the complexes, which showed a high molar absorption coefficient, high coordination performance, and high energy transfer efficiency with rare earth ions.…”

Section: Introductionmentioning

confidence: 99%

Europium(III)-Based Fluorescent Microspheres with Styrene Copolymerization toward an Enhanced Photoluminescence Performance

Liu

Cai

et al. 2022

ACS Appl. Polym. Mater.

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Rare earth-based polystyrene (PS) fluorescent microspheres, which vigorously combine the merits of rare earth elements and polystyrene microspheres, hold great potential for applications in the state-of-the-art technology and tremendous efforts have been devoted to the photoluminescence field. Herein, a 5-acrylamido-1,10-phenanthroline (Aphen) and Eu(III)-based polystyrene fluorescent microsphere was developed via a facial copolymerization strategy. The optimal complexes of Eu(β-NTA) 3 (Aphen) and Eu(BFA) 3 (TPPO) 2 were fabricated as the luminescent materials. Specifically, Eu(β-NTA) 3 (Aphen)-PS was modified for the first time to enhance the photoluminescence property, which effectively integrated the Aphen with styrene monomer. Meanwhile, Eu(BFA) 3 (TPPO) 2 was encapsulated into PS microspheres for the realization of Eu(BFA) 3 (TPPO) 2 -PS via an ubiquitous embedding process. The fluorescent intensity of Eu(β-NTA) 3 (Aphen)-PS was notably reinforced along with an increasing concentration of the rare earth complexes. However, the fluorescence intensity of Eu(BFA) 3 (TPPO) 2 -PS was decreased when the concentration was 50 mg due to the saturated solubility of the complexes. The obtained copolymerization fluorescent microspheres could prevent the premature leakage of the fluorescent complexes in a natural environment and showed an outstanding photoluminescence efficiency.

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Section: Introductionmentioning

confidence: 99%

Europium(III)-Based Fluorescent Microspheres with Styrene Copolymerization toward an Enhanced Photoluminescence Performance

Liu

Cai

et al. 2022

ACS Appl. Polym. Mater.

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“…The absorption coefficients of the optical transitions for lanthanide ions are, however, very low which limits their practical application considerably. This drawback can be overcome through the use of organic ligand, which acts as an antenna or sensitizer, absorbing excitation light and transferring energy to the lanthanide ions, thus greatly improves the characteristic emission of rare earth ions [10][11][12][13][14] . In order to obtain strong luminescent intensities, Eu 3+ ions need a cleverly designed environment consisting of organic ligands with chromophoric groups to absorb efficiently light and subsequently populate the excited states of Eu 3+ ions via energy transfer.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, Thermal Decomposition Mechanism and Properties of the [Eu(4-MOBA)3(terpy)(H2O)]2 Complex

HUO¹,

SONG²,

Jin³

et al. 2016

Acta Physico-Chimica Sinica

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A new complex [Eu(4-MOBA)3(terpy) (H2O)]2 (4-MOBA: 4-methoxybenzoate, terpy: 2,2′ :6′ ,2′′terpyridine) was synthesized. The complex was characterized using Fourier transform infrared (FTIR) spectroscopy, elemental analysis, and powder X-ray diffraction (XRD). The structure of the complex was determined using single-crystal XRD. In the complex, each Eu 3+ ion is nine coordinated to one terpy molecule, one water molecule and three carboxylate groups. The carboxylate groups are bonded to the Eu 3+ ion in three modes: bidentate, bridging bidentate, and monodentate. Based on thermogravimetry-differential scanning calorimetry/Fourier transform infrared (TG-DSC/FTIR) measurements, we determined the thermal decomposition mechanism. The emission spectra of the complex exhibited characteristic luminescence, suggesting that terpy and 4-methoxybenzoic acid can act as sensitizing chromophores in this system. Also, bacteriostatic activities for the complex to Candida albicans and Escherichia coli are discussed.

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Rare earth compounds with 3-methoxybenzoic acid and terpyridine ligands

Shen

Ren

Zhang

et al. 2018

J Therm Anal Calorim

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Thermostable Eu(III)-nanorod luminophores with effective photosensitized energy transfer

Cited by 12 publications

References 44 publications

Europium(III)-Based Fluorescent Microspheres with Styrene Copolymerization toward an Enhanced Photoluminescence Performance

Europium(III)-Based Fluorescent Microspheres with Styrene Copolymerization toward an Enhanced Photoluminescence Performance

Synthesis, Characterization, Thermal Decomposition Mechanism and Properties of the [Eu(4-MOBA)<sub>3</sub>(terpy)(H<sub>2</sub>O)]<sub>2</sub> Complex

Rare earth compounds with 3-methoxybenzoic acid and terpyridine ligands

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