Fig. 2
From: Enabling long-lived organic room temperature phosphorescence in polymers by subunit interlocking
Photophysical properties of dry PSSNa polymer in solid state. a Molecular structure of PSSNa polymer. Right: Photographs of PSSNa solids taken under a 365 nm lamp on and off. b Excitation-phosphorescence emission mapping of PSSNa polymer under ambient conditions. c Time-resolved emission spectra of PSSNa polymer excited by 325 nm. d The lifetime profiles of PSSNa polymer monitoring at 540 nm excited by 300 nm and 560 nm excited by 365 nm under ambient conditions, respectively. e Excitation dependent phosphorescence spectra of PSSNa polymer at 77 K. Insets show photographs taken after PSSNa polymer excited by 300, 330, 360, 390, 420, and 450 nm at 77 K. f Phosphorescence spectra of PSSNa polymer at various temperatures from 293 to 443 K. Insets show photographs from top to bottom taken after PSSNa polymer excited by 365 nm at 293, 348, 373, 418, and 443 K
