Fig. 6 | Nature Communications

Fig. 6

From: Boosting the efficiency of organic persistent room-temperature phosphorescence by intramolecular triplet-triplet energy transfer

Fig. 6

Time-resolved excitation/emission and temperature-dependent PL spectra. a Time-resolved excitation spectra of CZ, DBFBr, and CZ-DBFBr in the crystalline state at 4 K. b Time-resolved emission spectra of CZ, DBFBr, and CZ-DBFBr in solid state at 4 K. c Temperature-dependent steady-state PL spectra of CZ-DBFBr in solid state from 4 to 300 K. d Temperature-dependent intensity of emission bands at 500 and 655 nm. The excitation of CZ and CZ-DBFBr was 400 nm; while the excitation of DBFBr was 330 nm

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