Patent ID: 11859115
Assignee: TECHNISCHE UNIVERSITäT DRESDEN
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  F  G | IPC C  F  G

Claim 6:
7. A method for deactivating the phosphorescence of a structure:
wherein the structure comprises a first and a second material;
wherein a phosphor is admixed with the first material;
wherein the first material is capable of containing molecular oxygen; and
wherein the second material is oxygen-impermeable at an ambient temperature and in the oxygen-impermeable state, acts as an oxygen barrier between the first material and an environment of the structure;
the method comprising:
deactivating the phosphorescence in a deactivation step by heating and/or irradiating the structure with light of a third characteristic, wherein the heating and/or irradiating the structure with the light of the third characteristic introduces oxygen into the structure.