Fig. 4: Radiative relaxation process of Ph-3CP.
From: Single-component-based multicolor emissions enabled by symmetry breaking
CT = charge transfer, LE = localized excitation. CT1 and CT2 represent two distinct conformations arising from structural relaxation of different excited states. Inset: the electronic structures of CT1 and CT2, where the iso-surface of the hole and electron wavefunction distribution is set to 0.001, and the blue and green bubbles represent holes and electrons, respectively. Fluorescence images at the bottom, captured from 297 to 77 K under excitation at 365 nm (left) and 308 nm (right), show the equilibrium among LE, CT1 and CT2 states.
