fig3

Figure 3. Fluorescence pictures and absolute quantum efficiency of (A) TPE-1, (C) TPE-2, (E) TPE-3 and (G) TPE-4 before and after grinding; solid-state fluorescence emission spectra of (B) TPE-1, (D) TPE-2 at initial, post-grinding and (F) TPE-3, (H) TPE-4 at initial, post-grinding and solvent fumigation; fluorescence images of (I) TPE-3 and (K) TPE-4 under different pressures; fluorescence emission spectra of (J) TPE-3 and (L) TPE-4 under different pressures. TPE: Tetraphenylethylene.