Fig. 6: HTP properties of controlled doped systems based on other guests.
From: Twofold rigidity activates ultralong organic high-temperature phosphorescence

a Single-crystal structures of guests. Afterglow images of (b) cBCZ/PVP, (c) cBCZ-Me/PVP, (d) cgBCZ/PVP, and (e) cgBCZ–Me/PVP at various temperatures.