Journal ArticleDOI
Lanthanide luminescence for functional materials and bio-sciences
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TLDR
This critical review describes the latest developments in the sensitization of near-infrared luminescence, "soft" luminescent materials (liquid crystals, ionic liquids, ionogels), electroluminescentmaterials for organic light emitting diodes, with emphasis on white light generation, and applications in luminecent bio-sensing and bio-imaging based on time-resolved detection and multiphoton excitation.Abstract:
Recent startling interest for lanthanide luminescence is stimulated by the continuously expanding need for luminescent materials meeting the stringent requirements of telecommunication, lighting, electroluminescent devices, (bio-)analytical sensors and bio-imaging set-ups. This critical review describes the latest developments in (i) the sensitization of near-infrared luminescence, (ii) “soft” luminescent materials (liquid crystals, ionic liquids, ionogels), (iii) electroluminescent materials for organic light emitting diodes, with emphasis on white light generation, and (iv) applications in luminescent bio-sensing and bio-imaging based on time-resolved detection and multiphoton excitation (500 references).read more
Citations
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Rare‐Earth‐Metal Methylidene Complexes
Jochen Kratsch,Peter W. Roesky +1 more
TL;DR: Rare-earth-metal alkylidene, especially methylidenes, compounds are an emerging class of compounds with a high synthetic potential for organometallic chemistry and maybe in the future also for organic chemistry.
Journal ArticleDOI
Hydrogen production from sulphide wastewater using Ce3+–TiO2 photocatalysis
TL;DR: Cerium (Ce3+) doped TiO2 powder was synthesized by a sol-gel method and characterized by Transmission Electron Microscope (TEM), X-ray Diffraction (XRD), UV-Vis Diffuse Reflectance Spectroscopy (UV-DRS), Fourier Transform Infrared Spectrograph (FT-IR) and X-Ray photoelectron spectroscopy(XPS) as discussed by the authors.
mesoporous host through ion-pairing interactions with high quantum efficiencies and long lifetimes
TL;DR: Anthanide complexes have attracted considerable attention due to their outstanding emission properties such as long luminescence lifetime, photostability, narrow and easily-identifiable emission lines as discussed by the authors, which make them suitable for application in lighting devices and biomedical analysis.
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A Strongly Luminescent Chromium(III) Complex Acid.
TL;DR: Deuteration of the NH groups of 23+ approximately doubles the quantum yield and lifetime in water, demonstrating the importance of multiphoton relaxation in these NIR emitters.
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Core–shell structured Gd2O3:Ln@mSiO2 hollow nanospheres: synthesis, photoluminescence and drug release properties
TL;DR: Results indicate that the uniform Gd2O3:Ln@mSiO2 composite with the particle size around 300 nm maintains the spherical morphology and good dispersibility of the precursor, which should have potential applications in biomedicine and other fields.
References
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Journal ArticleDOI
Two-Photon Laser Scanning Fluorescence Microscopy
TL;DR: The fluorescence emission increased quadratically with the excitation intensity so that fluorescence and photo-bleaching were confined to the vicinity of the focal plane as expected for cooperative two-photon excitation.
Journal ArticleDOI
Luminescent Metal–Organic Frameworks
TL;DR: This critical review discusses the origins of MOF luminosity, which include the linker, the coordinated metal ions, antenna effects, excimer and exciplex formation, and guest molecules.
Journal ArticleDOI
Upconversion and Anti-Stokes Processes with f and d Ions in Solids
TL;DR: Before the 1960s, all anti-Stokes emissions, which were known to exist, involved emission energies in excess of excitation energies by only a few kT and were linked to thermal population of energy states above excitation states by such an energy amount.