photochromism

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photochromism
photochromism (fəʊtəʊˈkrəʊmɪz(ə)m) [f. asphotochromy (c) + -ism.] The phenomenon whereby certain substances undergo a reversible change of colour or shade when illuminated with light of appropriate wavelength.1951 Physics Abstr. A. LIV. 204/2 (heading) Photochromism in the bianthrone series. 1953 [s... Oxford English Dictionary
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Photochromism
Since photochromism is just a special case of a photochemical reaction, almost any photochemical reaction type may be used to produce photochromism with Tenebrescence Tenebrescence, also known as reversible photochromism, is the ability of minerals to change color when exposed to light. wikipedia.org
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Photochromy
[Note] Not to be confused with Photochromism (a reversible color change induced by light energy). See Photochromism. wikipedia.org
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photochromic
photochromic, a. and n. (fəʊtəʊˈkrəʊmɪk) [f. as next + -ic.] A. adj. Of, pertaining to, or displaying photochromism.1953 Jrnl. Chem. Physics XXI. 1619/2 In those compounds which exhibit both thermochromism and photochromism the thermochromic and the photochromic colors are in each case spectroscopic... Oxford English Dictionary
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Answer the following question. What is photochromism and how is it used?
Photochromism is the reversible changes in properties like color or fluorescence of a material when exposed to light.
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Photomagnetism
See also Photomagnetic effect Photochromism References Further reading Condensed matter physics Ferromagnetism Magneto-optic effects wikipedia.org
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Ionochromism
Ionochromism, similar to chromic methods such as photochromism, thermochromism and other chromism phenomena, is the reversible process of changing the wikipedia.org
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phototropy
phototropy (fəʊˈtɒtrəpɪ) [ad. G. phototropie (W. Marckwald 1899, in Zeitschr. f. physik. Chem. XXX. 140), f. Gr. ϕωτο- (see photo-) + -τροπία turning.] = photochromism, phototropism 2.1900 Sci. Amer. 24 Feb. 123/2 To these phenomena the experimenter gives the name of phototropy. 1929 [see phototropi... Oxford English Dictionary
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Scotophor
Scotophors show tenebrescence (reversible photochromism) and darken when subjected to an intense radiation such as sunlight. See also Solarization Photochromism References Display technology Optical materials Chromism wikipedia.org
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photoinduce
photoinduce, v. (ˌfəʊtəʊɪnˈdjuːs) Also with hyphen. [f. photo- 1 + induce v.] trans. To induce by the action of light; esp. in Plant Physiol., to induce reproductive behaviour in a plant by an appropriate sequence of light and darkness (used with the behaviour or the plant as obj.).1949 Bot. Gaz. CX... Oxford English Dictionary
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Photoisomerization
See also Photochromism References Chemical reactions wikipedia.org
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why are molecular memories important
The molecular component can be described as a molecular switch, and may perform this function by any of several mechanisms, including charge storage, photochromism
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Ultraviolet-sensitive bead
When changing colour they undergo photochromism. wikipedia.org
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David L. Staebler
Staebler has performed research investigations on photochromism in materials, electrochromism, storage of holograms in electro-optic crystals, plus amorphous wikipedia.org
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Hexaarylbiimidazole
See also Photochromism References Imidazoles Chromism wikipedia.org
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