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About: Luminescence is a(n) research topic. Over the lifetime, 51267 publication(s) have been published within this topic receiving 978538 citation(s). The topic is also known as: Luminescence. more


Journal ArticleDOI: 10.1063/1.1699044
Abstract: The term ``sensitized luminescence'' in crystalline phosphors refers to the phenomenon whereby an impurity (activator, or emitter) is enabled to luminesce upon the absorption of light in a different type of center (sensitizer, or absorber) and upon the subsequent radiationless transfer of energy from the sensitizer to the activator The resonance theory of Forster, which involves only allowed transitions, is extended to include transfer by means of forbidden transitions which, it is concluded, are responsible for the transfer in all inorganic systems yet investigated The transfer mechanisms of importance are, in order of decreasing strength, the overlapping of the electric dipole fields of the sensitizer and the activator, the overlapping of the dipole field of the sensitizer with the quadrupole field of the activator, and exchange effects These mechanisms will give rise to ``sensitization'' of about 103−104, 102, and 30 lattice sites surrounding each sensitizer in typical systems The dependence of transfer efficiency upon sensitizer and activator concentrations and on temperature are discussed Application is made of the theory to experimental results on inorganic phosphors, and further experiments are suggested more

Topics: Activator (phosphor) (56%), Luminescence (50%)

7,097 Citations

Open accessJournal ArticleDOI: 10.1021/CR8003983
Koen Binnemans1Institutions (1)
04 Aug 2009-Chemical Reviews
Topics: Europium (58%), Lanthanide (53%), Luminescence (52%) more

2,621 Citations

Journal ArticleDOI: 10.1039/B905604C
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). more

Topics: Luminescence (50%)

2,576 Citations

Journal ArticleDOI: 10.1038/357477A0
01 Jan 1992-Nature
Abstract: THE recent fabrication of light-emitting diodes (LEDs) from conjugated polymers1,2demonstrates the technological potential of this class of electronic materials. A variety of colours are possible, because the wavelength of luminescence emission can be chemically tuned during synthesis1–4. In addition, the mechanical properties of polymers suggest that light-emitting structures can be made that are more flexible than their inorganic counterparts, provided appropriate materials can be found for the substrate and electrodes. Here we report the fabrication of a fully flexible LED using poly(ethylene terephthalate) as the substrate, soluble poly-aniline as the hole-injecting electrode, a substituted poly(1,4-phenylene-vinylene) as the electroluminescent layer and calcium as the electron-injecting top contract. The structure is mechanically robust and may be sharply bent without failure. The LED is easily visible under room lighting and has an external quantum efficiency of about 1%. With a turn-on voltage for light emission of 2–3 V, the 'plastic' LED demonstrates that this unique combination of optical, electrical and mechanical properties can be used to make novel structures that are compatible with conventional devices. more

Topics: Light emission (58%), Conductive polymer (55%), Light-emitting diode (53%) more

2,456 Citations

Journal ArticleDOI: 10.1021/CR900362E
Jean-Claude G. Bünzli1Institutions (1)
12 Feb 2010-Chemical Reviews
Abstract: Keywords: Time-Resolved Fluorescence ; Resonance Energy-Transfer ; Near-Infrared Luminescence ; Double-Stranded Dna ; Prostate-Specific Antigen ; Photoinduced Electron-Transfer ; Europium-Tetracycline Complex ; Sybr-Green-I ; Terbium Complexes ; Optical Probes Reference EPFL-ARTICLE-149396doi:10.1021/cr900362eView record in Web of Science Record created on 2010-06-17, modified on 2017-05-12 more

Topics: Luminescence (52%)

2,016 Citations

No. of papers in the topic in previous years

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Topic's top 5 most impactful authors

Martin Nikl

264 papers, 5.4K citations

Hyo Jin Seo

217 papers, 3.6K citations

G. Blasse

216 papers, 5.8K citations

Takayuki Yanagida

198 papers, 2.5K citations

Akira Yoshikawa

133 papers, 2.2K citations

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