Photochromism is the reversible change of color upon exposure to light. It is a transformation of a chemical species (photoswitch) between two forms by the absorption of electromagnetic radiation (photoisomerization), where the two forms have different absorption spectra.[1][2]
- ^ Irie, M. (2000). "Photochromism: Memories and Switches – Introduction". Chemical Reviews. 100 (5): 1683–1684. doi:10.1021/cr980068l. PMID 11777415.
- ^ Heinz Durr and Henri Bouas-Laurent Photochromism: Molecules and Systems, ISBN 978-0-444-51322-9