The role of lanthanide luminescence in advancing technology

Tessitore, Gabriella; Mandl, Gabrielle A.; Maurizio, Steven L.; Kaur, Mannu; Capobianco, John A.

doi:10.1039/d3ra00991b

Cited by 19 publications

(8 citation statements)

References 197 publications

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“…From the other side, lanthanide ions are well-known for their narrow line luminescence, which is the basis for their wide application in solar cell technology, biological imaging, and bioassays, , as well as in OLED devices . However, the search for new types of lanthanide complexes promising for advanced optical applications is actively continuing. , It should also be pointed out that the use of organometallic and coordination compounds of lanthanides for the creation of new magnetic materials, including the creation of molecular magnets based on mononuclear RE complexes (single ion magnet), has become widespread in recent years …”

Section: Introductionmentioning

confidence: 99%

Tridentate Nitrogen Ligand as a Tool for the Construction of Well-Defined Rare Earth Trichloride Complexes

Degtyareva,

Bardonov,

Afanaseva

et al. 2024

Inorg. Chem.

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LnCl 3 (THF) 3 (Ln = Y, La ÷ Nd, Sm ÷ Lu) readily react with the tridentate 1,3,5-trimethyl-1,3,5-triazacyclohexane (Me 3 tach) ligand to form mono-or binuclear lanthanide trichloride complexes, depending on the stoichiometry of the reaction and the ionic radius of the metal: mononuclear pseudosandwich [LnCl 3 (Me 3 tach) 2 ], (Ln = Y, La ÷ Ho) or binuclear complexes [Ln 2 Cl 6 (Me 3 tach) 3 ], or [LnCl 3 (Me 3 tach)(THF)] 2 (Ln = Sm, Tb). Detailed analysis of the NMR data of [LnCl 3 (Me 3 tach) 2 ] complexes with paramagnetic lanthanide ions showed that their structures remained unchanged in the toluene solution. A series of isomorphous complexes [LnCl 3 (Me 3 tach)(Py) 2 ] (Ln = La, Sm, Tb, Er, Lu; Py = pyridine) have been obtained by the recrystallization of either mononuclear or binuclear complexes from pyridine. Complexes of terbium and europium ions with the Me 3 tach ligand exhibit relatively high quantum yields of metal-centered luminescence (0.39 and 0.32, respectively).

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Section: Introductionmentioning

confidence: 99%

Tridentate Nitrogen Ligand as a Tool for the Construction of Well-Defined Rare Earth Trichloride Complexes

Degtyareva,

Bardonov,

Afanaseva

et al. 2024

Inorg. Chem.

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“…Luminescence methods such as fluorescence spectroscopy, microfluorometry, and fluorescence microscopy utilizing molecular and nanoscale luminescent reporters are broadly applied in the materials and life sciences. − Applications range from sensing and bioimaging to barcoding, solid-state lighting, and energy conversion. Performance parameters of luminescent reporters include the spectral position of the luminophore absorption and emission bands, their spectral widths and overlap, as well as fundamental spectroscopic quantities acting as measures for the absorption and emission efficiency such as the molar absorption coefficient or absorption cross section and the photoluminescence or fluorescence quantum yield (Φ f ) .…”

Section: Introductionmentioning

confidence: 99%

Interlaboratory Comparison on Absolute Photoluminescence Quantum Yield Measurements of Solid Light Converting Phosphors with Three Commercial Integrating Sphere Setups

Fiedler,

Frenzel,

Würth

et al. 2024

Anal. Chem.

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Scattering luminescent materials dispersed in liquid and solid matrices and luminescent powders are increasingly relevant for fundamental research and industry. Examples are luminescent nano- and microparticles and phosphors of different compositions in various matrices or incorporated into ceramics with applications in energy conversion, solid-state lighting, medical diagnostics, and security barcoding. The key parameter to characterize the performance of these materials is the photoluminescence/fluorescence quantum yield (Φf), i.e., the number of emitted photons per number of absorbed photons. To identify and quantify the sources of uncertainty of absolute measurements of Φf of scattering samples, the first interlaboratory comparison (ILC) of three laboratories from academia and industry was performed by following identical measurement protocols. Thereby, two types of commercial stand-alone integrating sphere setups with different illumination and detection geometries were utilized for measuring the Φf of transparent and scattering dye solutions and solid phosphors, namely, YAG:Ce optoceramics of varying surface roughness, used as converter materials for blue light emitting diodes. Special emphasis was dedicated to the influence of the measurement geometry, the optical properties of the blank utilized to determine the number of photons of the incident excitation light absorbed by the sample, and the sample-specific surface roughness. While the Φf values of the liquid samples matched between instruments, Φf measurements of the optoceramics with different blanks revealed substantial differences. The ILC results underline the importance of the measurement geometry, sample position, and blank for reliable Φf data of scattering the YAG:Ce optoceramics, with the blank’s optical properties accounting for uncertainties exceeding 20%.

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“…In the DS process, Eu (red) and Tb (green) ions act as activators, with Ce acting as a sensitizer for 254 nm UV excitation . These unique properties make Ln-based NCs promising for anticounterfeiting applications, as evidenced by the use of Eu-based phosphor materials in Euro currency notes and Yb/Er-based UC NCs in China’s RMB currency. − However, single-mode DS- or UC-based luminescent materials are susceptible to imitation, necessitating the development of more advanced and unclonable fluorescent nanomaterials …”

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confidence: 99%

Simultaneous 980 and 800 nm Orthogonal Upconversion and Ligand-Sensitized Downshifting of Triply Excited and Multicolor-Emitted Core–Multishell Nanocrystals for High-Level Anticounterfeiting Applications

Adusumalli,

Gupta,

Lee

et al. 2024

ACS Materials Lett.

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In this study, we synthesized four types of core-pentad shell nanocrystals (NCs) through a layer-by-layer thermal decomposition method. Each NC was doped with distinct lanthanide ions in specific layers to achieve tricolor emissions by orthogonal dual upconversion under 980 and 800 nm excitation, as well as downshifting through ligand sensitization. To prevent energy transfer between the two upconversion emissive layers, an inert interlayer was introduced. Consequently, the NCs exhibited two distinct emission colors for the two different NIR excitations. Nd ions were incorporated for 800 nm excitation and separated by a Yb layer with the activator layer to eliminate cross relaxations between activator ions (Er or Tm) and Nd ions. The NCs were further capped with the 2,6-PDA ligand to sensitize Eu or Tb ions by UV excitation. Diverse patterns and matrices were screen-printed by utilizing these triply excited emissive NCs. These unclonable printed patterns hold excellent potential for advanced anticounterfeiting applications.

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The role of lanthanide luminescence in advancing technology

Abstract: This review provides a historical overview of the role of lanthanide luminescence in scientific advancements that have enabled past, current, and future commercial technologies.

Cited by 19 publications

References 197 publications

Tridentate Nitrogen Ligand as a Tool for the Construction of Well-Defined Rare Earth Trichloride Complexes

Tridentate Nitrogen Ligand as a Tool for the Construction of Well-Defined Rare Earth Trichloride Complexes

Interlaboratory Comparison on Absolute Photoluminescence Quantum Yield Measurements of Solid Light Converting Phosphors with Three Commercial Integrating Sphere Setups

Simultaneous 980 and 800 nm Orthogonal Upconversion and Ligand-Sensitized Downshifting of Triply Excited and Multicolor-Emitted Core–Multishell Nanocrystals for High-Level Anticounterfeiting Applications

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