Fig. 2: Organic PSL from the m-MTDATA/PPT/Rb blend films.
From: Organic photostimulated luminescence associated with persistent spin-correlated radical pairs
a Write-in and read-out processes. b Photograph of the m-MTDATA/PPT/Rb film. A part of the sample was masked during UV light irradiation. The scale bar is 10 mm. c Photographs of the samples without and with 800-nm light irradiation after stopping 365-nm light irradiation. d Emission decay profiles obtained for the m-MTDATA/PPT/Rb film with and without 800-nm light irradiation (red and black lines, respectively). The decay profile observed without UV pre-irradiation is also shown (gray line). The emission intensity was integrated over the wavelength range of 500−700 nm (Supplementary Figure 5d). The inset shows the logarithmic plots of the decay profiles. e Differential absorption spectra obtained for the m-MTDATA/PPT/Rb (0, 1 mol%) films before and after 365-nm light irradiation.
