Fig. 4: Aggregation-modulated photophysical behavior.
From: A temperature sensor with a wide spectral range based on a dual-emissive TADF dendrimer system
a Concentration-dependent fluorescence spectra for 2GCzBPPZ in n-hexane solution (λexc = 340 nm). b Corresponding photos under ambient light and using a UV torch (λexc = 360 nm). c CIE plot of the color evolution of 2GCzBPPZ as a function of concentration. d Concentration-dependent emission mapping. e Ratiometric plots of I475/I575 (blue dots) and I575/I475 (orange dots) vs increasing concentration of 2GCzBPPZ. f Concentration-dependent absorption spectra for 2GCzBPPZ in n-hexane. g PL spectra under degassed and aerated conditions at the concentration of 2.0 × 10 − 5 M in n-hexane (λexc = 340 nm). h PL decay profiles of the emission λem = 475 nm (top) and λem = 575 nm (bottom) under degassed and aerated n-hexane (λexc = 375 nm).
