Patent ID: 11912918
Assignee: LUMILEDS, LLC
Field: Surface technology, coating (Chemistry)
Classification: CPC C  F  H | IPC C  F  H

Claim 15:
16. The luminescent material according to claim 12, further comprising a further ALD coating layer arranged onto the main sol-gel coating layer, the further ALD coating layer having a further ALD coating layer thickness (d4) in the range of 10-50 nm, the further ALD coating layer comprises a further multilayer with two or more layers having different chemical compositions, one or more of the layers comprising metal oxides selected from a group of Al2O3, TiO2, ZrO2, HfO2, SnO2, ZnO and Ta2O5, and the two or more layers having a chemical composition differing from the chemical composition of the main sol-gel coating layer.