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-[luminescence] is a spontaneous emission of radiation from an electronically or vibrationally excited species not in thermal equilibrium with its environment-
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A luminescent object emits cold light in contrast to incandescence, where an object only emits light after heating
Generally, the emission of light is due to the movement of electrons between different energy levels within an atom after excitation by external factors. However, the exact mechanism of light emission in vibrationally excited species is unknown.
The dials, hands, scales, and signs of aviation and navigational instruments and markings are often coated with luminescent materials in a process known as luminising.[3]
Ionoluminescence, a result of bombardment by fast ions
Radioluminescence, a result of bombardment by ionizing radiation
Electroluminescence, a result of an electric current passed through a substance
Cathodoluminescence, a result of a luminescent material being struck by electrons
Chemiluminescence, the emission of light as a result of a chemical reaction
Bioluminescence, a result of biochemical reactions in a living organism
Electrochemiluminescence, a result of an electrochemical reaction
Lyoluminescence, a result of dissolving a solid (usually heavily irradiated) in a liquid solvent
Candoluminescence, is light emitted by certain materials at elevated temperatures, which differs from the blackbody emission expected at the temperature in question.
Mechanoluminescence, a result of a mechanical action on a solid
Triboluminescence, generated when bonds in a material are broken when that material is scratched, crushed, or rubbed
Fractoluminescence, generated when bonds in certain crystals are broken by fractures
Piezoluminescence, produced by the action of pressure on certain solids[4]
Sonoluminescence, a result of imploding bubbles in a liquid when excited by sound
Crystalloluminescence, produced during crystallization
Thermoluminescence, the re-emission of absorbed energy when a substance is heated[5]
Cryoluminescence, the emission of light when an object is cooled[6] (an example of this is wulfenite)
Photoluminescence, a result of the absorption of photons
Fluorescence, traditionally defined as the emission of light that ends immediately after the source of excitation is removed. As the definition does not fully describe the phenomenon, quantum mechanics is employed where it is defined as there is no change in spin multiplicity from the state of excitation to emission of light.[2]
Phosphorescence, traditionally defined as persistent emission of light after the end of excitation. As the definition does not fully describe the phenomenon, quantum mechanics is employed where it is defined as there is a change in spin multiplicity from the state of excitation to the emission of light.[2]
Light-emitting diodes (LEDs) emit light via electro-luminescence.[7]
Phosphors, materials that emit light when irradiated by higher-energy electromagnetic radiation or particle radiation
Laser, and lamp industry
Phosphor thermometry, measuring temperature using phosphorescence
Thermoluminescence dating
Thermoluminescent dosimeter
Non-disruptive observation of processes within a cell.[8]
Luminescence occurs in some minerals when they are exposed to low-powered sources of ultraviolet or infrared electromagnetic radiation (for example, portable UV lamps) at atmospheric pressure and atmospheric temperatures. This property of these minerals can be used during the process of mineral identification at rock outcrops in the field or in the laboratory.
The term luminescence was first introduced in 1888.[9]
List of light sources
Scientific American, “Luminous Paint” (historical aspects), 10-Dec-1881, pp.368
High-visibility clothing
^ Chemistry (IUPAC), The International Union of Pure and Applied. “IUPAC – luminescence (L03641)”. goldbook.iupac.org. Retrieved 2023-12-03.
^ Jump up to: a b c Valeur, Bernard; Berberan-Santos, Mário N. (2011-06-01). “A Brief History of Fluorescence and Phosphorescence before the Emergence of Quantum Theory”. Journal of Chemical Education. 88 (6): 731–738. Bibcode:2011JChEd..88..731V. doi:10.1021/ed100182h. ISSN 0021-9584.
^ Cooper, John R.; Randle, Keith; Sokhi, Ranjeet S. (2003). Radioactive Releases in the Environment: Impact and Assessment. Wiley. p. 192. ISBN 978-0-471-89924-2.
^ Piezoluminescence phenomenon N. A. Atari Physics Letters A Volume 90, Issues 1-2, 21 June 1982, Pages 93-96 doi:10.1016/0375-9601(82)90060-3
^ Meetei, Sanoujam Dhiren. “Synthesis, Characterization and Photoluminescence of ZrO2:Eu3+ Nanocrystals” (PDF). Retrieved 18 December 2014.
^ Sidran, Miriam (1968). “The Luminescence of the Moon”. In Kopal, Zdeněk (ed.). Advances in Astronomy and Astrophysics (Volume 6). Academic Press. p. 301.
^ Jorio, Ado; Dresselhaus, Gene; Dresselhaus, Mildred S. (2007-12-18). Carbon Nanotubes: Advanced Topics in the Synthesis, Structure, Properties and Applications. Springer Science & Business Media. ISBN 978-3-540-72865-8.
^ “Light-emitting particles illuminate understanding of cellular malfunctions – News & Media @ UOW”. Archived from the original on 2018-06-12. Retrieved 2018-06-11.
^ “Über Fluorescenz und Phosphorescenz, I. Abhandlung” (On fluorescence and phosphorescence, first paper), Annalen der Physik und Chemie, 34: 446-463. From page 447: “Ich möchte für diese zweite Art der Lichterregung, für die uns eine einheitliche Benennung fehlt, den Namen Luminescenz vorschlagen, und Körper, die in dieser Weise leuchten, luminescirende nennen.” [For this second type of light excitation, for which we lack a consistent name, I would like to suggest the name of “luminescence”, and call “luminescing” [any] bodies that glow in this way.]
Fluorophores.org A database of luminescent dyes
en.wikipedia.org /wiki/Luminescence
Luminescence
Contributors to Wikimedia projects6-7 minutes 7/6/2002
DOI: 10.1021/ed100182h, Show Details
From Wikipedia, the free encyclopedia
Luminol and haemoglobin, an example of chemiluminescence
UV-photoluminescence in microbiological diagnostics
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