Janus SEGPHOS: Integrating Persistent Photogenic Radicaloids with Multiple Circularly Polarized Doublet Radiance and Long-persistent Triplet Phosphorescence

Organic phosphors integrating circularly polarized persistent luminescence (CPPL) across the visible range are prevalent for applications in optical information encryption, bioimaging, and 3D display, but the pursuit of color-tunable CPPL in a single-component organics remains a formidable task. Herein, via in-suit photo-implanting radical ion-pairs into axial chiral crystals, we present and elucidate an unprecedented double-module decay strategy to achieve a colorful CPPL through a combination of stable triplet emission from neutral diphosphine and doublet radiance from photogenic radicals in an exclusive crystalline framework. Owing to the photoactivation-dependent doublet radiance component and an inherent triplet phosphorescence in the asymmetric environment, the CPL vision can be regulated by altering the photoactivation and observation time window, allowing colorful glow tuning from blue and orange to delayed green emission. Mechanism studies reveal that this asymmetric electron migration environment and hybrid n-π*, π-π* instincts serve an afterglow and radical radiance at ambient conditions. Moreover, we demonstrate the applications of colorful CPPL for displays and encryptions via manipulation of both excitation and observation time.