Work

Fast blue-switching photochromic lactone-fused naphthopyrans

Year: 2026

Type: article

Abstract: New colorless lactone-fused naphthopyrans with amino substituents were prepared and their photochromic properties studied in solution and dispersed in an organic polymeric matrix. UV irradiation of these compounds leads to an immediate development of an intense blue color which fades in a few seconds in the dark, unlike the parent unfused naphthopyrans which show a much slower response to the variable UV light intensity.

Source: Dyes and Pigments

DOI: 10.1016/j.dyepig.2026.113569

Authors: Céu M. Sousa, Jerome Berthet, Paulo J. Coelho

Institutions: University of Trás-os-Montes and Alto Douro, Inserm, Université de Lille, Centre Hospitalier Universitaire de Lille, Lille Neurosciences & Cognition

Language: English

Topic: Photochromic and Fluorescence Chemistry

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,590

Funder: Fundação para a Ciência e a Tecnologia