In this OPARA entry, the data for the figures of the publication "Immediate Organic Room-Temperature Phosphorescence in Programmable Luminescent Tags Enabled by Oxygen-Free Fabrication" by Winkler et al. are provided.

Figure 1c. Schematic illustration of molecular oxygen concentration and the emitted luminescence brightness as a function of UV irradiation time.

Figure 3a. Activation curves of PLTs as a function of their emitted luminescence brightness.

Figure 3b. Modification of the first activation dose via thermal preconditioning.

Figure 3c. Modification of first activation dosefor different oxygen barrier thicknesses.

Figure 3d. Cycle behaviour of all AC and all GC PLTs.

Figure S3. Absorption data of BP-2TA in polystyrene and PMMA for PLTs with similar film thickness (PLTs from figure 3).

Figure S4. Absorption, PL spectrum and phosphorescence decay of BP-2TA in polystyrene for PLTs with different film thickness, as well as their activation behaviour.

Figure S5. Absorption, PL spectrum and phosphorescence decay of BP-2TA in PMMA for PLTs with different film thickness, as well as their activation behaviour.

Figure S6. Activation curves of PLTs of Py-2TA in polysyrene and PMMA.

Figure S8. PL spectrum and phosphorescence decay of BP-2TA in polystyrene before and after UV illumination (dose 810 mJ cm-2).