Multifunctionality of lanthanide-based luminescent hybrid materials

Singh, Akhilesh Kumar

doi:10.1016/j.ccr.2021.214365

Cited by 46 publications

(16 citation statements)

References 132 publications

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“…Owing to the rich spectroscopic terms of Ln ions, Ln-based materials have gained wide interest in virtue of their unique superiority in FL such as long-lived narrow emission lines, high color purity and quantum efficiencies, as well as significant applications in light-emitting diodes, displays and imaging, optical sensors and devices, etc. 28,[39][40][41][42] The incorporation of the appropriate fluorescent Ln centers into the POM frameworks can endow POMs with remarkable luminescence properties. Here, the solid-state FL properties of 3 and 4 at ambient temperature were investigated.…”

Section: Fl Propertiesmentioning

confidence: 99%

Dual-ligand-functionalized dodeca-nuclear lanthanide–tungsten-cluster incorporated selenotungstates and fluorescence detection of dipicolinic acid (an anthrax biomarker)

Gong

Yang

Wang

et al. 2023

Inorg. Chem. Front.

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Section: Fl Propertiesmentioning

confidence: 99%

Dual-ligand-functionalized dodeca-nuclear lanthanide–tungsten-cluster incorporated selenotungstates and fluorescence detection of dipicolinic acid (an anthrax biomarker)

Gong

Yang

Wang

et al. 2023

Inorg. Chem. Front.

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“…Zheng et al prepared Eu 2+ -doped Ca 4 Y 3 Si 7 O 15 N 5 oxynitride phosphor and investigated its dual-function applications in w-LEDs and pressure sensing . The multifunctionalization of phosphors is an emerging trend in the field of luminescent material research. − …”

Section: Introductionmentioning

confidence: 99%

Mn⁴⁺-Activated Double-Perovskite-Type Sr₂LuNbO₆ Multifunctional Phosphor for Optical Probing and Lighting

Chen

Zhu

et al. 2023

ACS Appl. Mater. Interfaces

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Multifunctional phosphors have significant application and scientific value and are becoming a research hotspot in the field of luminescent materials. Herein, we report Mn 4+ -activated double-perovskite-type Sr 2 LuNbO 6 multifunctional phosphors with excellent comprehensive properties in the fields of optical temperature/pressure sensing and w-LED lighting. The crystalline structure, elemental composition, optimal doping concentration, crystal-field strength, and optical bandgap of the phosphors are investigated in detail, and the mechanisms of concentration and thermal quenching are discussed. From the optimal Sr 2 LuNb 0.998 O 6 :0.2%Mn 4+ phosphor, a LED lamp for indoor warm-white lighting is successfully fabricated. Further, the thermometric properties of the phosphors are explored for applications as FIR-and lifetime-based thermometers, showing a maximum relative sensitivity of 1.55% K −1 at 519 K. Upon pressure loading, a significant red-shift of the peak centroid is observed, and the pressure sensitivity is determined to be 0.82 nm/ GPa. These results suggest that the Mn 4+ -activated Sr 2 LuNbO 6 multifunctional phosphors have great potential to be utilized in the fields of optical thermometry, manometry, and lighting.

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“…Lanthanide (Ln 3+ )-doped nanomaterials are particularly interesting for their typical luminescence properties in the UV, visible, and near-infrared (700–1200 nm) regions, due to their peculiar energy level structure, making them ideal materials for optical bioimaging and temperature sensing. , In addition, due to their unpaired electrons in the outer configuration 4f shell, they have relevant paramagnetic properties, making Ln 3+ -doped nanoparticles optimal also as MRI contrast agents . Moreover, Ln 3+ ions have notable X-ray absorption cross sections in the typical regions employed in modern computed tomography (CT), suggesting their use as X-ray contrast agents .…”

Section: Introductionmentioning

confidence: 99%

“…Fluoride-based hosts are suitable for accommodating luminescent Ln 3+ ions, as their low-phonon energies are ideal to enhance the luminescence with respect to lanthanide organic complexes, due to reduced nonradiative multiphonon relaxations.…”

Section: Introductionmentioning

confidence: 99%

From Nanothermometry to Bioimaging: Lanthanide-Activated KY₃F₁₀ Nanostructures as Biocompatible Multifunctional Tools for Nanomedicine

Cressoni

Vurro

Milan

et al. 2023

ACS Appl. Mater. Interfaces

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Lanthanide-activated fluoride-based nanostructures are extremely interesting multifunctional tools for many modern applications in nanomedicine, e.g., bioimaging, sensing, drug delivery, and photodynamic therapy. Importantly, environmental-friendly preparations using a green chemistry approach, as hydrothermal synthesis route, are nowadays highly desirable to obtain colloidal nanoparticles, directly dispersible in hydrophilic media, as physiological solution. The nanomaterials under investigation are new KY 3 F 10 -based citrate-capped core@shell nanostructures activated with several lanthanide ions, namely, Er 3+ , Yb 3+ , Nd 3+ , and Gd 3+ , prepared as colloidal water dispersions. A new facile microwaveassisted synthesis has been exploited for their preparation, with significant reduction of the reaction times and a fine control of the nanoparticle size. These core@shell multifunctional architectures have been investigated for use as biocompatible and efficient contrast agents for optical, magnetic resonance imaging (MRI) and computerized tomography (CT) techniques. These multifunctional nanostructures are also efficient noninvasive optical nanothermometers. In fact, the lanthanide emission intensities have shown a relevant relative variation as a function of the temperature, in the visible and near-infrared optical ranges, efficiently exploiting ratiometric intensity methods for optical thermometry. Importantly, in contrast with other fluoride hosts, chemical dissolution of KY 3 F 10 citrate-capped nanocrystals in aqueous environment is very limited, of paramount importance for applications in biological fluids. Furthermore, due to the strong paramagnetic properties of lanthanides (e.g., Gd 3+ ), and X-ray absorption of both yttrium and lanthanides, the nanostructures under investigation are extremely useful for MRI and CT imaging. Biocompatibility studies of the nanomaterials have revealed very low cytotoxicity in dfferent human cell lines. All these features point to a successful use of these fluoride-based core@shell nanoarchitectures for simultaneous diagnostics and temperature sensing, ensuring an excellent biocompatibility.

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Multifunctionality of lanthanide-based luminescent hybrid materials

Cited by 46 publications

References 132 publications

Dual-ligand-functionalized dodeca-nuclear lanthanide–tungsten-cluster incorporated selenotungstates and fluorescence detection of dipicolinic acid (an anthrax biomarker)

Dual-ligand-functionalized dodeca-nuclear lanthanide–tungsten-cluster incorporated selenotungstates and fluorescence detection of dipicolinic acid (an anthrax biomarker)

Mn⁴⁺-Activated Double-Perovskite-Type Sr₂LuNbO₆ Multifunctional Phosphor for Optical Probing and Lighting

From Nanothermometry to Bioimaging: Lanthanide-Activated KY₃F₁₀ Nanostructures as Biocompatible Multifunctional Tools for Nanomedicine

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Multifunctionality of lanthanide-based luminescent hybrid materials

Cited by 46 publications

References 132 publications

Dual-ligand-functionalized dodeca-nuclear lanthanide–tungsten-cluster incorporated selenotungstates and fluorescence detection of dipicolinic acid (an anthrax biomarker)

Dual-ligand-functionalized dodeca-nuclear lanthanide–tungsten-cluster incorporated selenotungstates and fluorescence detection of dipicolinic acid (an anthrax biomarker)

Mn4+-Activated Double-Perovskite-Type Sr2LuNbO6 Multifunctional Phosphor for Optical Probing and Lighting

From Nanothermometry to Bioimaging: Lanthanide-Activated KY3F10 Nanostructures as Biocompatible Multifunctional Tools for Nanomedicine

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Product

Resources

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Mn⁴⁺-Activated Double-Perovskite-Type Sr₂LuNbO₆ Multifunctional Phosphor for Optical Probing and Lighting

From Nanothermometry to Bioimaging: Lanthanide-Activated KY₃F₁₀ Nanostructures as Biocompatible Multifunctional Tools for Nanomedicine