Charge Transfer Alteration and White Light Emission in Photochromic Triphenylamine-Norbornadiene-Triazine Switch

Herein, we present a photochromic compound that reversibly switches emission color by adjusting its charge transfer pathway. Its reversible photoisomerization toggles charge transfer through bonds or space, controlling white light emission. Computational and photophysical studies highlight its promise for advanced optoelectronic applications.