General presentation
Photochromic molecules and materials: presentation, characteristics and applications
Article REF: N1530 V1
General presentation
Photochromic molecules and materials: presentation, characteristics and applications

Authors : Stéphane ALOÏSE, Jonathan PIARD

Publication date: August 10, 2019 | Lire en français

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1. General presentation

1.1 Definitions

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1.1.1 Photochromism

Photochromism is a photo-induced, reversible transformation between two isomers A and B of a chemical species with different absorption spectra. As a result, photochromic materials are generally characterized by a change in color during phototransformation between A and B.

In the remainder of this document, the reaction that leads from isomer A to isomer B will be denoted A → B and called the forward reaction. The...

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