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Photochromism meaning

WebFeb 27, 2024 · Photochromic lenses are eyeglass lenses that are clear (or nearly clear) indoors and darken automatically when exposed to sunlight. Other terms sometimes used for photochromic lenses include "light … WebPhotochromism in TiO 2 and in the alkaline earth titanates is associated with the presence of iron impurity. Fe 3 ions enter the TiO 2 structure substitutionally for Ti 4+ ions, each pair of Fe 3+ ions being compensated for by one O = vacancy. Some of the Fe 3+ ions occupy sites adjacent to the vacancies forming Fe 3+ centers. Iron-doped rutile is colorless or …

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WebThe meaning of PHOTOCHROMIC is capable of changing color on exposure to radiant energy (such as light). How to use photochromic in a sentence. ... photochromism-ˌmiz-əm . noun. photochromic. 2 of 2 noun: a photochromic substance WebNov 9, 2015 · Tungsten oxide-based photochromic films which changed reversibly in air between colorless– transparent in the dark and dark blue under UV irradiation were prepared by using methylcellulose as a film matrix and polyols such as ethylene glycol (EG), propylene glycol (PG), and glycerin (Gly) as dispersing agents. Influence of the dispersing agents … herculiner gray https://bohemebotanicals.com

What does photochromism mean? - Definitions.net

WebPhotochromism definition: The reversible transformation of the optical properties of a material when exposed to electromagnetic radiation, especially the reversible darkening … WebOriginally the term photochromism was applied to light-induced, reversible photochemical reactions which resulted in a visible colour change. However, this definition has been extended to cover reversible transformations between two states with differing absorption spectra which may be in the UV, visible or IR regions of the electromagnetic spectrum, the … WebPhotochromism is the reversible transformation of a chemical species between two forms by the absorption of electromagnetic radiation, where the two forms have different … matthew chidester half moon bay

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Photochromism meaning

Photochromic Definition & Meaning YourDictionary

WebJun 20, 2015 · Photochromism is simply defined as a light-induced reversible transformation of a chemical species between two forms that have different absorption … WebPhotochromic Definition. Designating or of a material, as certain glass or film, which turns dark when exposed to light and returns to its normal transparency with the removal of the …

Photochromism meaning

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WebMar 12, 2003 · Photochromism is simply defined as the light induced reversible change of colour. The field has developed rapidly during the past decade as a result of attempts to improve the established materials and to discover new devices for applications.As photochromism bridges molecular, supramolecular and solid state chemistry, as well as … WebNov 17, 2011 · Photochromism: Definition. ... The photochromism exhibited the ability to switch between colorless and blue. A fading process occurred when the film was exposed to ambient air or O2 in the dark ...

Webphotochromic / ( ˌfəʊtəʊˈkrəʊmɪk) / adjective (of glass) changing colour with the intensity of incident light, used, for example, in sunglasses that darken as the sunlight becomes brighter WebApr 9, 2024 · photochromic in American English. (ˌfoʊtoʊˈkroʊmɪk ) adjective. designating or of a material, as certain glass or film, which turns dark when exposed to light and …

WebFeb 25, 2011 · Photochromism is a part of photochemistry dealing with reversible photochemical reactions. Photochromism was first reported by Fritsche in 1867 [1], who observed that tetracene with air and light ... WebThe meaning of PHOTOCHROMIC is capable of changing color on exposure to radiant energy (such as light). How to use photochromic in a sentence. ... photochromism-ˌmiz …

WebPhotochromism is a phenomenon described as a reversible conversion of a chemical species between two isomeric forms, induced by the absorption of electromagnetic radiation, which results in color changes. Isomerization of organic photochromic molecules involves chemical processes such as: pericyclic reactions, electron and intramolecular …

WebPhotochromism is defined as a reversible pho- totransformation of a chemical species between two forms having different absorption spectra. During the photoisomerization, … herculiner faqWebJan 1, 2001 · Organic photochromism (IUPAC Technical Report) Abstract This technical report is a general introduction to organic photochromism. The definition of photochromism (PC) is given together with that of words with the ending "chromism", such as thermo-, electro-, piezo-, and tribochromism. Important concepts such as two-photon, gated, dual … matthew chilewich aqrWebDec 29, 2014 · Photochromism is defined in simple terms as a reversible light-induced color change [ 1 ]. A more accurate definition would be a reversible transformation between … herculiner hcl0b8WebPhotochromism is a chemical process in which a compound undergoes a reversible change between two states having separate absorption spectra, which mean different colors. … matthew chidester attorneyWebPhotochromism is the reversible transformation of a chemical species (photoswitch) between two forms by the absorption of electromagnetic radiation (photoisomerization), where the two forms have different absorption spectra. In plain language, this can be described as a reversible change of color upon exposure to light. ... herculiner flag couchWebJan 30, 2001 · Organic Photochromism. This technical report is a general introduction to organic photochromism. The definition of photochromism (PC) is given together with that of words with the ending "chromism ... herculiner hcl1g8 gray brush-on bed liner kitWebUniversity of Pennsylvania - School of Arts & Sciences School of Arts ... herculiner gray quart