Photochromism meaning
WebJun 20, 2015 · Photochromism is simply defined as a light-induced reversible transformation of a chemical species between two forms that have different absorption … 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 ...
Photochromism meaning
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WebDec 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 … WebJan 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 ...
WebPhotochromism is the reversible transformation of a chemical species between two forms by the absorption of electromagnetic radiation, where the two forms have different … WebUniversity of Pennsylvania - School of Arts & Sciences School of Arts ...
Photochromism 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 … See more Sunglasses One of the most famous reversible photochromic applications is color changing lenses for sunglasses. The largest limitation in using photochromic technology is that … See more Photochromism was discovered in the late 1880s, including work by Markwald, who studied the reversible change of color of 2,3,4,4-tetrachloronaphthalen-1(4H)-one in the solid state. He … See more Photochromic molecules can belong to various classes: triarylmethanes, stilbenes, azastilbenes, nitrones, fulgides, spiropyrans, naphthopyrans, … See more Photochromism does not have a rigorous definition, but is usually used to describe compounds that undergo a reversible photochemical reaction See more • Photosensitive glass • Hexaarylbiimidazole See more WebDefine photochromism. photochromism synonyms, photochromism pronunciation, photochromism translation, English dictionary definition of photochromism. adj. Of or relating to a substance or object whose color changes on exposure to light: photochromatic glasses that darken in sunlight. pho′to·chro′mism n....
Web1 of 2 adjective. pho· to· chro· mic ˌfōt-ə-ˈkrō-mik. 1. : capable of changing color on exposure to radiant energy (as light) eyeglasses with photochromic lenses. 2. : of, relating to, or …
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 light source. phoenix spring baseball scheduleWebPhotochromism definition: the reversible transformation of something's colour due to exposure to electromagnetic... Meaning, pronunciation, translations and examples phoenix spring training 2018Webphotochromism photochromism (English) Noun photochromism (countable and uncountable; pl. photochromisms) The reversible transformation of the optical properties of a material when exposed to electromagnetic radiation, especially the reversible darkening of a plastic lens when exposed to sunlight. Translations tts brian twitchtts boomwhackersWebApr 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 … phoenix spring training 2023WebOriginally 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 … tts bot for twitch streamsWebJul 29, 2016 · Abstract. This chapter outlines how industrial photochromic dyes are designed, manufactured and used. It explains the properties that are crucial to their commercial utility and, in doing so, gives a definition of ‘industrial photochromism’. Such colorants possess several key molecular features. This Chapter reveals how these … phoenix sports card show