Fig. 3: Electron absorption spectra and color change.

Time-dependent electron absorption spectra of 1 measured in the diffuse reflectance mode and color change upon irradiation (a) or thermal annealing at 180 °C (b).
Time-dependent electron absorption spectra of 1 measured in the diffuse reflectance mode and color change upon irradiation (a) or thermal annealing at 180 °C (b).