Unlocking non-Kasha room temperature phosphorescence in azulene-based cocrystal
Abstract
Herein, we unveil non-Kasha room-temperature phosphorescence and fluorescence in precisely tailored, azulene-embedded cocrystals. Comprehensive delayed emission experiments, supported by theoretical investigations, confirm the remarkable viability of singlet excitons and long-lived triplet excitons emanating from higher-energy states, with implications for next-generation optoelectronics.

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