Photochromism meaning
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 (countable and uncountable, plural photochromisms) The reversible transformation of the optical properties of a material when exposed to electromagnetic …
Photochromism meaning
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WebPhotochromism definition: the reversible transformation of something's colour due to exposure to electromagnetic... Meaning, pronunciation, translations and examples 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 …
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 ... WebPhotochromism is a chemical process in which a compound undergoes a reversible change between two states having separate absorption spectra, which mean different colors. …
Webphotochromism 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 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 ...
WebJan 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 …
WebJun 20, 2015 · Photochromism is simply defined as a light-induced reversible transformation of a chemical species between two forms that have different absorption … hilit 8.8 mechanical anchorWebHerein, our review focus on the latest six-years development about energy manipulation and metal-assisted photochromism, which mainly refers to metal-sensitized visible light photochromism, in ... smart a gmbhWebThe 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 hilitand8f4i2xe5b3Photochromism 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 hilitand ip13 reviewsWebJun 9, 2024 · It derives from the Greek words ‘phos’ (meaning light) and ‘chroma’ (meaning colour). The IUPAC defines photochromism as the “ reversible transformation of a … hilitand351s9zdgxpWebPhotochromic materials, a class to which bacteriorhodopsin (BR) belongs, have not been used much in holography. Photochromics are real-time recyclable materials which need … hilitandv2b3eams9t-01WebAug 31, 2024 · The results of studies on negative photochromism of compounds and systems have been analyzed for the first time. It has been shown that the majority of studies deal with photochromic spiro compounds (spiropyrans and spirooxazines) whose negative photochromism is caused mainly by molecular structure, polarity and acidity of the … hilitand reviews